Category Archives: HDX Broadcast

HDX Offloading for Microsoft Teams within a Citrix Virtual Desktop

Consider this an evergreen article with *pro-active adds/moves/changes inclusive of errors/mistakes until I remove this statement.

The following content is a brief and unofficial prerequisites guide to setup, configure and test delivering Microsoft teams within a Citrix virtual desktop powered by Citrix Virtual Apps & Desktops (CVAD) Service – https://docs.citrix.com/en-us/citrix-virtual-apps-desktops-service.html in Citrix Cloud prior to deploying in a PoC, Pilot or Production environment. The views, opinions and concepts expressed here are those by the author only and do not necessarily conform to industry descriptions nor leading practises. The views expressed here are my own and do not necessarily reflect the views of Citrix.

Shortened Names
SKYPE FOR BUSINESS – skype4b
CITRIX VIRTUAL DESKTOP – cvd
CITRIX VIRTUAL APP & DESKTOP – cvad
VIRTUAL DELIVERY AGENT – vda
HIGH DEFINITION EXPERIENCE – hdx
VIRTUAL DESKTOP – vd
VIRTUAL APPS – va
REALTIME MEDIA ENGINE – rtme
CITRIX WORKSPACE APP – cwa
MICROSOFT TEAMS – teams
CURRENT RELEASE – cr
LONG TERM SERVICE RELEASE – ltsr

Very Importantly Notice*
“This feature depends on a future Microsoft Teams release. We will update this description as information about the version and release date become available.” referenced directly from – https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/multimedia/opt-ms-teams.html#system-requirements.

Introduction
In May 2016 I published the following blog post entitled “Deploying Skype for Business 2015-16 (Offloaded) from a Citrix HDX Optimised Virtual App or Desktop” available at – https://axendatacentre.com/blog/2016/04/25/deploying-skype4b-2015-offloaded-from-a-citrix-hdx-virtual-app-or-desktop/. Suggested before you continue reading this post please read the “Optimization for Microsoft Teams” documentation on Citrix eDoc’s at – https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/multimedia/opt-ms-teams.html or study if you are pressed for time the below architecture diagram for ease of use, of the joint Citrix + Microsoft solution to offload the audio/video processing of Teams from a Citrix Virtual Desktop to the employees local endpoint that is required to run a supported OS + Citrix Workspace app + Real-Time Media Engine (RTME). I still encourage you to please read the documentation in full prior to continuing reading.

Check out the Architecture for the HDX Offloading for #Teams with @Citrix – https://t.co/iUxrG9l8M4 – Optimization for Microsoft Teams p.s please read the NOTE at the top of the document article. pic.twitter.com/PXq0mYaitI
— Lyndon-Jon Martin 👨🏻‍💻 (@lyndonjonmartin) August 6, 2019

It is also worth understanding Microsofts basic architecture overview of the solution which is available at – https://docs.microsoft.com/en-us/microsoftteams/teams-for-vdi#teams-on-vdi-with-calling-and-meetings.

The Employee Experiences with Teams HDX Offloaded

Windows

Linux (x64 Linux distributions only)

Understanding a HDX Optimised vs. Non-Optimised CVAD Deployment
The following HTML diagram depicts the differences between (un)optimised, I’ve also included a few suggested considerations as well.

Non-Optimised

Optimised for HDX Teams Offloading

Windows OS

VDA YYMM

Teams app 1.2.00.31357

Internet

End-point + Citrix Workspace app (CWa)

	Windows OS VDA YYMM
← →	ICA/HDX Virtual Channel*
↑ ↓	Teams app 1.2.00.31357
	HDX Teams Services	← →
	Internet		↑ ↓
← →	End-point + Citrix Workspace app (CWa) – Windows 1911*		↑ ↓
A/V Traffic to other End-Point ← →	HDX Embedded Media Engine	← →

1. It’s very important to recognise that employees will find themselves in a situation where the connected end-point is unoptimised during work from home scenario e.g COVID-19 and therefore you should plan for these scenarios by implementing the right vs. relevant HDX policy strategy “Balanced” vs. “Preferred” see below guidance.
2. Educate employees when using a non corporate device e.g personal device at home during to COVID-19 they will likely be consuming an un-optimised version of Teams in CVAD, its important to set a exception to avoid unnecessary help desk tickets/calls.
3. Any and all exchanged IM’s and documents live within the CVAD lens meaning that your IP + Pii in any documents lives within the employees CVAD resource e.g Virtual Desktops when they exported it from a IM’s vs. channel(s) in Teams. It is also important to recognise that those same IMs’ vs. channel(s) originate and are available in Microsoft Teams on any device as the source, so if employees re-frame teams outside of your Citrix virtual desktop your IP + Pii in documents could be exfiltrated if the employee device(s) are not properly managed by IT e.g MEM, UEM, MAM, Secure SaaS check out – https://www.mycugc.org/blogs/lyndon-jon-martin/2020/03/27/secure-saas-on-zero-trusted-vs-earned-trusted-devi for more information.

LTSR vs. CR Strategy for HDX Offloading of Microsoft Teams?
It’s worth understanding that if your CVAD deployment strategy is to use the Long Term Service Release (LTSR) then you will not receive any new features only bug fixes this thinking keeps inline with the current CVAD strategy between CR vs. LTSR (stability and long-term – https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/1912-ltsr.html) release cycles. Consuming a CR branch means that you can unlock new features as they become available by upgrading your CVAD on-premises of upgrade the CVAD Service components within your Resource Locations (RL).

Release Strategy	New Features	Bug Fixes	Documentation
CVAD Service	✓	✓
On-premises Current Release (CR)	✓	✓	https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/multimedia/opt-ms-teams.html
Long Term Service Release (LTSR)	✗	✓	https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/1912-ltsr/multimedia/opt-ms-teams.html

Pre-requisites & System Requirements Key Highlights Only
The full and complete list is available at – https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/multimedia/opt-ms-teams.html*, there is also a Citrix TechZone article published at – https://docs.citrix.com/en-us/tech-zone/design/reference-architectures/optimizing-unified-communications-solutions.html. The below are the key highlights that should be focused on to be successful.

1. You will require the following MSFT teams version “1.2.00.31357” in order to be able to take advantage off the HDX Offloading capabilities within a supported CVAD environment. The following Citrix Workspace app (CWa) versions are the suggested vs. minimal versions that will be required to HDX offload Teams A/V traffic onto the employees endpoint:

Windows
Minimum Version: Citrix Workspace app 1911 for Windows
Download (1911): https://www.citrix.com/en-gb/downloads/workspace-app/legacy-workspace-app-for-windows/workspace-app-for-windows-1911.html
PDF Documentation (1911): https://docs.citrix.com/en-us/citrix-workspace-app-for-windows/1911/citrix-workspace-app-for-windows-1911.pdf

Linux
Minimum Version: Citrix Workspace app 2006 for Linux running on x64 Linux distributions.
Download (2006): https://www.citrix.com/en-gb/downloads/workspace-app/linux/workspace-app-for-linux-latest.html
PDF Documentation (CR): https://docs.citrix.com/en-us/citrix-workspace-app-for-linux/citrix-workspace-app-for-linux.pdf

2. Avoid using the .exe installer for Teams – https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/multimedia/opt-ms-teams.html#microsoft-teams-installation.
3.The Citrix HDX Teams policy “Microsoft Teams redirection” – https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/policies/reference/ica-policy-settings/multimedia-policy-settings.html#microsoft-teams-redirection, is ON by default as per https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/multimedia/opt-ms-teams.html#microsoft-teams-installation.
4.CTXMTOP is a Citrix HDX virtual channel used for command and control purposes and no media is therefore exchanged between the CWa running on the end-point and the VDA running in the resource location (data centre).
5. In terms of network connectivity requirements PLEASE NOTE that MSFT Teams utilises Media Processor servers in Office 365 for meetings which affects the behaviour of two peers in point-to-point call scenarios, you can learn more at – https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/multimedia/opt-ms-teams.html#network-requirements, you should be thinking about near to local breakout from end-points to ensure IP transmits to Office365 over the most efficient and faster available route to avoid any/all employee experience degradation this will also directly apply to any MSFT teams clients on native devices that aren’t HDX Offloaded so take note! If you are a Citrix SD-WAN customer take a look at – https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/multimedia/opt-ms-teams.html#citrix-sd-wan-optimized-network-connectivity-for-microsoft-teams likewise if you are not a Citrix SD-WAN customer please take the opportunity to understand why you need to be thinking about an SD-WAN solution for your modern workplace.
6. You will need to update your Windows Firewall ACL on Windows endpoints to avoid the offloading failing by allowing “HdxTeams.exe (HDX Overlay Teams)“, you learn more at – https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/multimedia/opt-ms-teams.html#firewall-considerations.
7. Understanding Screen sharing – https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/multimedia/opt-ms-teams.html#screen-sharing-in-microsoft-teams.

Deploying HDX Offloading (HDX Optimisation Pack ) for Microsoft Teams in a Citrix Virtual App vs. Virtual Desktop
1.The minimum on-premises control plane required is 1906 running the 1906.2 VDA reference – https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/multimedia/opt-ms-teams.html#system-requirements and
2.You need to enable the following policy in Studio for 1906 see page at 668 – https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/downloads/citrix-virtual-apps-and-desktops-1906.pdf to enable “Microsoft Teams redirection” which is also documented at – https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/multimedia/opt-ms-teams.html#system-requirements.
3.Endpoints should be running Citrix Workspace app for Windows 1907 but the recommended version is 1909 and be sure to configure the Windows ACL for Windows Defender Firewall to allow the “HDX Overlay Teams” app to traverse the right vs. relevant networks for more information please check out – https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/multimedia/opt-ms-teams.html#firewall-considerations.
4. The Citrix TechZone micro-site includes few detailed Proof of Concept web document at – https://docs.citrix.com/en-us/tech-zone/learn/poc-guides/microsoft-teams-optimizations.html#policy-settings entitled “Proof of Concept guide for Microsoft Teams optimization in Citrix Virtual Apps and Desktops environments” to help you setup, configure and deploy Microsoft Teams through a CVAD session or lens. It is a must read and therefore I have chosen to not repeat of any of the authors great work expect what was in my original post 06/08/2019. A fellow Citrix colleague Wendy Gay, published a simple guided step by step overview at – https://citrixie.com/2020/04/14/installing-teams-optimization-pack/ which is worth reading.

Microsoft Teams Leading Deployment Practises for Teams in Citrix VDI
1. Migrate Teams on VDI with chat and collaboration to Citrix with calling and meetings – https://docs.microsoft.com/en-us/microsoftteams/teams-for-vdi#migrate-teams-on-vdi-with-chat-and-collaboration-to-citrix-with-calling-and-meetings.
2. Teams on VDI performance considerations – https://docs.microsoft.com/en-us/microsoftteams/teams-for-vdi#teams-on-vdi-performance-considerations.
3. Known issues and limitations – https://docs.microsoft.com/en-us/microsoftteams/teams-for-vdi#known-issues-and-limitations

CWa Endpoint Update Release Strategy
It is important to recognise that you will need to manage the versions of supported CWa out in the field to avoid the HDX Offloading of Teams breaking and causing a degraded employee experience reverting to fallback of A/V. Please note that each supported OS platform has a different management strategy. You should also please take into account Microsofts recommendations – https://docs.microsoft.com/en-us/microsoftteams/teams-for-vdi#install-or-update-the-teams-desktop-app-on-vdi.

Platform	Manual	Automatic	IT Controlled	Link
Windows	✓	✓	✓	https://docs.citrix.com/en-us/citrix-workspace-app-for-windows/update.html#advanced-configuration-for-automatic-updates-citrix-workspace-updates
Linux	✓	✗	✗	https://docs.citrix.com/en-us/citrix-workspace-app-for-linux/install.html#update

Tech Insight – Microsoft Teams Optimization with Citrix
This video provides a detailed guided overview of the joint architecture, employee experience, optimisations inclusive of using Citrix SD-WAN, teams call routing and more. Originally posted to the Citrix TechZone at – https://docs.citrix.com/en-us/tech-zone/learn/tech-insights/microsoft-teams-optimization.html.

Suggested HDX Broadcast (Remote Graphics Mode) Policy for 7.15 Long Term Service Release (LTSR)
*Please be aware that Citrix eDocs is very clear when it states that Citrix does NOT support Teams HDX Offloading Optimisation for 7.15 Long Term Service Release (LTSR) as it is NOT listed as a supported CVAD platform, you still may wish however to test Microsoft Teams operationally e.g test out its impact on compute, I/O, user profile e.t.c and then purely for fallback failures aka NO HDX Offloading Optimisation BUT you will not be able to test the employee experience of HDX Offloading the audio/video traffic as it is NOT supported remember*). You’ll make use of your UAT 7.15 LTSR environment to be ready for a 2020-21 deployment on a supported CVAD release that supports HDX Offloading for Microsoft Teams, therefore use the built-in default HDX policy “Use video codec for compression” selecting “Use video codec when preferred” which means the following “This is the default setting. No additional configuration is required. Keeping this setting as the default ensures that Thinwire is selected for all Citrix connections, and is optimized for scalability, bandwidth, and superior image quality for typical desktop workloads.” reference the 7.15 LTSR documentation at – https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-15-ltsr/graphics/thinwire.html which will probably be ok for testing under the current release that you are consuming. Final Remember: CVAD formerly XAD 7.15 LTSR platform is NOT supported for Teams Optimisation. TIP: Definitions can change between CR vs. LTSR within the HDX stack which is consistently improving and being updated to offer better employee experiences all the time e.g introduction of net new H.264 standards so always be sure to check the differences between CR vs. LTSR and CR vs. CR versions.

Transitioning from Skype for Business to Teams
A number of few folks have asked the question can I mix and match Skype for Business and the Teams Optimisation Packs together? Its actually a complex answer but the immediate answer as of 03/08/2019 is below, BUT always be sure to circle back and review Citrix’s documentation for the latest supporting statements and interoperability at – https://docs.citrix.com around Teams Optimisation and when searching use “Teams Optimization”. Tip use American spelling for better results.

We only support windows CWA at the moment, which can coexist with RTME. A Mac CWA will be simply not load Teams in optimized VDI mode so we fall back to server side rendering.
— Fernando Klurfan (@CitrixFerK) August 3, 2019

The response is complex and is as follows, answers received vary dependant upon your role Citrix vs. Skpye4B/Teams SysAdmin or Consultant. As I work at Citrix today (Aug 2019) lets focus on a Citrix based role to Teams response:

1. Complete LOB app readiness of Teams including new HDX services/API’s to enable HDX Offloading within a the master image but hidden + unavailable using techniques like disabling the services for each (whatever you prefer), Citrix app layering, MSFT app masking e.t.c. TIP: Pay attention to understand the compute utilisation differences between Teams vs. Skype4B there is a difference.

2. I still need to push out the required RTME to all employee end-points so I don’t want to break the employee experience while we transition to Teams. It is expected to have backwards compatible within Citrix Workspace app for older Virtual Delivery Agent (VDA) versions check eDocs for the backwards compatibility.

3. I only want to transition employees by AD or Citrix Delivery group (department, trusted test groups e.t.c) to Teams based upon point 2 and perform a staggered canary rollout like Citrix Cloud does for each of its services.

4. The person(s) within the Skype for Business/Teams based role(s) need to setup/conf and then test the audio/video codecs prior to enabling Teams at a company wide scale, for me personally this point is actually the most critical because as you offloading the audio/video to the end-point when using HDX Offloading the back-end compute + network resources low aka aren’t taken any much of a real hit HOWEVER if the HDX Offloading fails then you really, really need to understand the impact of processing of the A/V within the Citrix session and what affect it will have on the employees experience so when he/she is completed there final tests, you should prior to a final rollout perform a test side by side two identical end-points one optimised and the other un-optimised and be sure to capture the compute + network requirements client and server side, including the network traffic and score the experience out of 10 for voice and video, the test should be done with wired (where possible today), wireless (Wi-Fi) and 4G internet connectivity in two separate locations an Office (think QoS) and at home (no QoS).

5. Once you have the results from point 4 you may want to re-evaluate your existing HDX Broadcast policies (remote graphics mode e.t.c) and take into account a fall-back scenario if HDX Offloading fails whatever the reason, you may also prefer to leave it as is, however I would strongly suggest creating an emergency fallback HDX Broadcast policy stack but it should be DISABLED and only manually pushed out only if required. The fallback HDX Broadcast policy stack is to preserve the employee experience as best you can if something goes wrong and when I mean something goes wrong I mean a non-Citrix update breaks the optimisation somehow as in reality the Citrix components e.g VDA, HDX Services/API, RTME and Citrix Workspace app are less likely to change within a 12 month period.

6. Citrix’s CR documentation for CVAD is updated to include a digram and overview of “Microsoft Teams and Skype for Business Coexistance” – https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/multimedia/opt-ms-teams.html#microsoft-teams-and-skype-for-business-coexistance.

Suggested “Balanced” HDX Broadcast (Remote Graphics Mode) Policy for Fallback
In 2016 I proposed the following HDX policy for remote graphics “Use video codec for compression” to be set to “For actively changing regions” to preserve the employee experience in a fallback scenario, its now 2019 and my Suggested HDX policy remains unchanged as long as the key goal is to preserve the employee experience to meet that HD experience and it will come at a back-end compute + network traffic spike, including increased network traffic between server and client to process the video H.264/H.265 streams.

Once upon a time I was a SysAdmin and still am at my core so I’ll have an emergency HDX policy in place BUT disabled I call it “HDX Adaptive Display v2 (Balanced)” you configure it as follows selecting the following HDX policies in Studio:

1.”Use video codec for compression” then select “For actively changing regions“
2. “Preferred color depth for simple graphics” then select “16 bits per pixel” and also try 24.
3. Select “Frames Per Second” and select the target FPS to circa 25 from the default which is 30.

NEW 11/10/2019 you could look to utilise “Progressive Mode” – https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/graphics/thinwire.html#progressive-mode, I have not tested this myself yet however it may work for your organisation if you already have it in-place actively.

I wrote a myCUGC article entitled “HDX Leading Best Practices for your Modern Secure Workspace” at – https://www.mycugc.org/blogs/cugc-blogs/2017/09/15/hdx-leading-best-practices-for-your-modern-secure which has some interesting thoughts and insights from nearly 2 years ago which you may find useful and yes I will write an updated article this year time permitting to complete my testing which requires extensive field testing with different devices I don’t just use a lab + network at home, I base 95% of all my article suggestions of what/how to configure settings vs. practises from my personal lab hosted in AWS EC2 in N.Virginia to delivered to end-points in the City of and Greater London, England so its not definitely poppy cop its real world + life scenarios and use cases that I test.

Suggested “Preferred” HDX Broadcast/RealTime/MediaStream (Remote Graphics Mode, Audio and Video) Policy inclusive of Fallback
YES I am contradicting the above suggested HDX Broadcast fallback policy, which I have now renamed to “Balanced” from my initial post and why it still remains is that it will support organisations of any size vs. scale vs. deployment rollout vs. connected devices supporting a balance between video, audio and the remoted display so when an outage occurs and neither I nor will you know what its going to be impacted for example it could be 1x MPLS circuit failure (tip check out Citrix SD-WAN link bonding demo from Jan 2016 vs. case study vs. product page) vs. degradation of all internet circuits due to bad BGP route injections, you get the idea. I’m cautious being an ex-SysAdmin/Consultant and therefore I will summary the key differentiators from my own perspectives as follows in order:

1. How important is the employee experience? For me personally this is always #1 as today’s 2019 reality, employees want an HD 4K experience consistently therefore my personal advise is utilise the built-in default HDX policies within the Current Release (CR) typically minus 2/3 of current CVAD release with your desired HDX employee experience policy tweaks.
2. Once you understand how the humans (employees) within your organisation work using Skype for Business vs. Teams you will have better context as to the WHAT should be in your fallback policy for DR, business continuity or just individual employee devices going into fallback mode. For example understanding your employees is key lets take a look at a practical example by industry vertical, a call centre employee is more interested in better audio quality with customers vs. a clinician on a video call discussing a patients surgical/recovery plan looking at patient records.
3. Re-evaluate once every 3-4 months by asking, polling quick surveys and looking at the metrics made available in both Skype for Business vs. Teams as lets be honest its not a light switch its a journey from one to the other.

Now that you understand your humans (employees) keeping point 3 in mind and begin building out your HDX employee experience policy which most likely be the using the defaults in the 19XN releases as the HDX product management team have done an brilliant job working with engineering decreasing the amount of toggles and dials to tweak the HDX protocol and its now these days automatically adapting and adjusting to maintain the human (employee) experience.

1.”Use video codec for compression” then select “Use video codec when preferred“
2. Select “Frames Per Second” use the default which is 30 or increase up to a maximum of 60.
3. Select “Visual quality” set to “High” going beyond this will incur high network bandwidth utilisation, but going beyond this is ok but remember if you are having continual networking performance issues unrelated to Citrix or the HDX offloading capability and employee experience has decreased overall think about a micro change for the current window and then revert. An example of using “Always lossless” is the clinician use case described above.

Tech Insight – Microsoft Teams Optimisation with Citrix

What Supported Hardware Can I Use With Microsoft Teams?
Strongly suggested to only use Microsoft Teams certified headsets, speaker phones, conference phones, cameras e.t.c are listed and available at – https://products.office.com/en-us/microsoft-teams/across-devices/devices. Are my existing Citrix Ready thin clients, headsets, cameras e.t.c using with Skype for Business using Citrix’s HDX Offloading capability compatible? You will need to check with your vendor for there support status with the new optimisation pack for Teams and Microsoft Teams as there have been changes made from both Citrix + Microsoft.

Collection of Suggested Troubleshooting for Microsoft Teams HDX Offloading in CVAD
Understand what Audio & Video (A/V) can be re-direction e.g web camera from supported Operating System (OS) vs. Citrix Workspace app (CWa) – https://www.citrix.com/content/dam/citrix/en_us/documents/data-sheet/citrix-workspace-app-feature-matrix.pdf – Citrix Workspace App (Earlier known as Citrix Receiver) Feature Matrix.

1. The Citrix Support site has a detailed article – https://support.citrix.com/article/CTX253754 which covers off multiple topics for troubleshooting failed HDX optimisations in a CVAD session.
2. How do I know if Teams is Optimised? https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/multimedia/opt-ms-teams.html#enable-optimization-of-microsoft-teams.
3. Troubleshoot MSFT Teams – https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/multimedia/opt-ms-teams.html#troubleshoot.
4. Chromebook – Teams webcam audio problem – https://discussions.citrix.com/topic/408319-chromebook-teams-webcam-audio-problem/#comment-2063142.

The views expressed here are my own and do not necessarily reflect the views of Citrix.

Citrix Ready WorkspaceHub Tech Preview (TP) Getting Started?

The following content is a brief and unofficial prerequisites guide to setup, configure and deploy the Tech Preview of the Citrix Ready WorkspaceHub using an Android Receiver on a mobile smart phone (April 2018) with XenApp & XenDesktop 7.6+ LTSR. The views, opinions, and concepts expressed are those by the author of this entry only and do not necessarily conform to industry descriptions or leading best practises. The views expressed here are my own and do not necessarily reflect the views of Citrix.

Shortened Names
SECURITY – sec
NETSCALER – ns
NETSCALER GATEWAY SERVICE – nsg service
WINDOWS – win
XENAPP – xa
XENDESKTOP – xd
XENAPP/XENDESKTOP – xad
WORKSPACEHUB – wh

Introduction
Citrix has recently announced the availability of the Tech Preview of the Citrix Ready WorkspaceHub at – https://www.citrix.com/blogs/2018/04/04/its-here-download-the-citrix-ready-workspace-hub-tech-preview-today/. So what exactly is it? Its a Raspberry Pi 3 platform at its core with Citrix technology + innovation built into it to provide a number of innovative capabilities for the Digital Workplace #thisishowthefutureworks. For me seeing is believing so the below embedded Tweet by Bas Stapelbroek – @hapster84 or https://twitter.com/hapster84 is a short video clip that demonstrates just one of the many powerful capabilities (sign-on to a thin client using a QR code while your virtual desktop still runs on your smart phone smooth roaming +++++ I like to say) available as part of the Citrix Ready Workspace Hub.

Trying out the NComputing Pi with the new Citrix Workspace Hub 😎#citrix #ncomputing with @MarkTilleman pic.twitter.com/xtiAaJfJ4T

— Bas Stapelbroek (@hapster84) April 5, 2018

Full credit of the above goes out to Bas Stapelbroek – @hapster84 and thank you for allowing me to include it in my blog post.

You’re probably asking yourself how do you manage them you ask? You leverage Stratodesk NoTouch – https://www.stratodesk.com/products/workspace-hub/ whom work with our supported Citrix Ready Partners that provide the Citrix Ready WorkspaceHub for Internal or external you can use Citrix XenMobile+.

Please visit the StratoDesk webpages for nComputing – https://www.stratodesk.com/products/workspace-hub/ncomputing-rx-hdx-citrix/ and ViewSonic – https://www.stratodesk.com/products/workspace-hub/viewsonic-sc-t25-citrix-hdx-ready-pi/ for more details around the capabilities, specifications e.t.c of each platform.

You can put the device down and lock it but be sure to refer to *page 14 for helpful tips.

Pre-requitstes & System Requirements
You’ll need to sign-up to the Tech Preview program at – https://podio.com/webforms/20685654/1419376 however I urge you to please please please read through this Citrix Forum Discussions post at – https://discussions.citrix.com/topic/394304-welcome-to-the-tech-preview-of-the-citrix-ready-workspace-hub/ and finally you should before you get started once you have your h/w and have been accepted into the program read through the the TP documentation available at – * https://docs.citrix.com/content/dam/docs/en-us/xenapp-xendesktop/current-release/downloads/workspace-hub-preview-2018.pdf which is the below in more detail.

– Your require at a bare minimum XenApp 7.6 LTSR environment running 7.6 VDA for Windows Server (remember this is a Tech Preview ONLY as of April 2018)
– You require a physical Citrix Ready WorkspaceHub device – http://citrixreadyprogram.com/workspace-hub/ which currently includes thin client vendors in alphabetical order nComputing and ViewSonic. If you have had it for a while e.g 2017 firmware please read pages 2 (end)-3(top) for instructions on where to obtain the firmware updates. See page 2 for full h/w details.
– TP only supports Android Receiver 3.13.5 or later for Mobile devices + Bluetooth for
– Networking persecutive your require Android smart phone and WorkspaceHub to be on the same Wi-Fi network with the following open ports 55555, 55556 (default port for SSL connections) and ports 1494 and 8500 must not be blocked for Citrix Casting to work between the Android Receiver on Mobile Device <-> Citrix WorkspaceHub.
– Internal centralised management utilises Stratodesk https://www.stratodesk.com/kb/Main_Page to get started or for external management you can use XenMobile+ also on page 3.
– If you’re looking for Skype for Business support check out page 5
– Recommended HDX Graphics Mode and policy for the TP is to set and enable H.264 for fullscreen the policy is “Use video codec for compression” setting to “For the entire screen”
– Setting up Receiver page 7 ensuring that you DO NOT SELECT e.g UNTICK “Add account type as Web Interface” and during the setup you’ve need to complete the Touch-Free mode for proximity authentication enabled vs. disabled page 8-9. Now test the proximity referring to page 10.
– Setting up the session roaming with a QR code, TLS/SSL (requires SHA256is covered in pages 11-15 with Stratodesk NoTouch
– Please please please read through thoroughly the known limitations within the TP on page 16 and finally there is Citrix Discussions Forum available for support during the TP at https://discussions.citrix.com/forum/1726-citrix-ready-workspace-hub-preview/.

In Closing
I hope you found this blog post useful as I have written it due to the number of people contacting me via social platforms, Slack and of course traditional communications like telephone calls, text/sms and yes email. A final thought, be sure to check out a short demonstration + talk on Citrix Casting and a lot more detail at – https://www.citrix.com/products/citrix-workspace/iot.html.

Disclaimer
Please read the “Citrix Ready Workspace Hub PreviewDisclaimerCitrix Ready Workspace Hub Preview Citrix Ready Workspace Hub Preview” on page 1* and a note to Citrix Investors is listed at the bottom of the blog post announcement of the TP program of the Citrix Ready WorkspaceHub at – https://www.citrix.com/blogs/2018/04/04/its-here-download-the-citrix-ready-workspace-hub-tech-preview-today/.

Session Watermarking for App & Desktop Security by Citrix XenApp & XenDesktop 7.17 or #CitrixCloud

The following content is a brief and unofficial prerequisites guide to setup, configure and deploy Session Watermark policy feature with the XenApp & XenDesktop Service (April 2018) or XenApp & XenDesktop 7.17 on-premises prior to deploying in a PoC, Pilot or Production environment by the author of this entry. The views, opinions and concepts expressed are those by the author of this entry only and do not necessarily conform to industry descriptions or leading best practises. The views expressed here are my own and do not necessarily reflect the views of Citrix.

Shortened Names
SECURITY – sec
NETSCALER – ns
NETSCALER GATEWAY SERVICE – nsg service
WINDOWS – win
XENAPP – xa
XENDESKTOP – xd
XENAPP/XENDESKTOP – xad

Introduction to “Session Watermark”
The latest release of the XenApp & XenDesktop Service powered by Citrix Cloud or if you are performing a private cloud (on-premises) upgrade or net new installation of XenApp & XenDesktop 7.17 has some NEW features (another post brewing) and one that I have been waiting on for quiet sometime now has not finally arrived (WAHOO!) and its VERY VERY simple to configure and aids in improving your security posture (I believe) for delivery of apps & desktops powered by Citrix against e.g IP theft. In the below tweet can you see it?

App & Desktop #Security made simple with #Citrix @XenApp & @XenDesktop Service powered by @CitrixCloud although my #ISP needs nudge once again!!!!! pic.twitter.com/fKAPXxNiT8

— Lyndon-Jon Martin (@lyndonjonmartin) April 3, 2018

The above is from my initial tests using a Windows Server 2016 VM hosted in Azure Northern Europe region running the 7.17 VDA configured to my Citrite #CitrixCloud XenApp & XenDesktop Service so I did not need to upgrade anything to get this new SHINY cool feature yes I said it SHINY. All I was required to do was deploy a new Windows Server 2016 VM from the Azure marketplace, domain join it, install the VDA and connect it to my Cloud Connector and I was ready in less than 25 minutes from initially deploying the VM from the marketplace.

Finally on a personal note for me Citrix SysAdmins enabling the “Session Watermark” feature obviously initally tested in a safe environment e.g UAT with a few users from a couple of departments and then rolling it out into production (as when/how your ready) will be making IT the modern “App & Desktop Security Heroes“. IT can apply and configure these new policies to be the most right vs. relevant for your organisations security needs while not hindering the end-users Rich HD eXperience.

Session Watermark Policies
You have 8 watermarking policies to apply with the 9th one enabling this security capability or feature set with the following list of quirks, suggested policy configuration and more available at – https://docs.citrix.com/en-us/xenapp-and-xendesktop/current-release/policies/reference/ica-policy-settings/session-watermark-policy-setting.html.

Before we get started it is worth mentioning that this feature does add an overhead to the compute on the backend (VDA side) and therefore it is suggested to enable up to two water marking features or items. In my overview of this feature I will wont cover off the cost of implementing this security policy as there are multiple variables to consider e.g HDX Graphics Mode and associated policies to provide the right vs. relevant end-user experience vs. how many watermark items do I apply? I have begun testing so bare with me and I’ll publish my findings either on my personal blog here or on https://www.mycugc.org under the “Expert Insights” area.

“Enable session watermark”
By default this feature is DISABLED as the default behaviour which I believe is the right approach considering its Citrix’s initial release of this #security feature (in my personal view) and secondly online documentation at eDocs suggested recommendations it to enable NOT more than two watermark text items. Finally * indicates that this policy is DISABLED by default when Session Watermark is enabled.

Include client IP address
* This is the IP addr of the device connecting to the virtual app & desktop.

Include connection time
* Utilises the following format yyyy/mm/dd hh:mm to display the users initial connection time to there virtual app or desktop.

Include logon user name
ENABLED by default when you enable Session Watermark as a policy and uses the following format USERNAME@DOMAINNAME is most optimise for 20 characters or less otherwise truncation might occur of the users logon username.

Include VDA host name
ENABLED by default when you enable Session Watermark as a policy and provides the VDA hostname e.g ne1vad01

Include VDA IP address
* Provides the internal IP addr that corresponding the VDA’s hostname e.g ne1vad01 = 10.1.0.7

Session watermark style
ENABLED by default using “Multiple e.g displays five watermark labels” when you enable Session Watermark as a policy or you can configure “Single e.g displays a single watermark label in the centre of the session“. TIP switching to SINGLE and sticking to two watermark text items for me in my initial tests is a good starting policy however time will tell as I continue to test out this new feature and its capabilities with different HDX Graphics Modes and associated tweaks.

Watermark custom text
* A unicode maximum of 25 characters is supported if you exceed this limit it will be truncated.

Watermark transparency
ENABLED by default set to “17 out of 100” when you enable Session Watermark as a policy, personally I think setting it to just 1 is fine in my initial tests as you want it to be not so in your face to the end-users to be bluntly honest.

What’s New with HDX (3D Pro) Technologies in XenApp & XenDesktop 7.16

The following content is a brief and unofficial prerequisites guide to setup, configure and test accessing secure by design virtual apps and desktops powered by XenApp & XenDesktop 7.15 prior to deploying a PoC, Pilot or Production environment by the author of this entry. The views, opinions and concepts expressed are those by the author of this entry only and do not necessarily conform to industry descriptions or leading best practises. The views expressed here are my own and do not necessarily reflect the views of Citrix.

Shortened Names
SESSION REABILITY – sr
HIGH DEFINITION EXPERIENCE – hdx
XENAPP/XENDESKTOP – xad
SESSION REABILITY – sr
CURRENT RELEASE – cr
LONG TERM SERVICE RELEASE – ltsr

Introduction what is HDX?
High Definition eXperience (HDX) is a set of technologies that provides a near to HD local like experience of a remoted virtual app, desktop or both to users anywhere in the world on any device even without installing anything on that device all you need is a modern widely used (supported) HTML5 compliant internet browser e.g Chrome, Safari (try it on your iOS devices :-)), Firefox, Internet Explorer you get the picture.

HDX is simple yet so powerful and has three founding principles which are intelligent redirection, adaptive compression, and data de-duplication like wise it has three principles it performs when you connect to there virtual resources which is Inspect the VM (Server vs. Desktop) what does it have e.g vGPU, Inspect the network what its like and can I use UDP for adaptive transport or should I fallback to TCP to remote the display + multimedia and finally it inspects the end-point what is there and can I use it? An example is the HDX Optimisation Pack available to offload audio/video for my Skype for Business sessions or shall I utilise generic HDX fallbacks?

I’m not going in great detail in this introduction so if your new to HDX or even an HDX Xen Master I’d still encourage you read the white paper published by Citrix on HDX Technologies at –
https://www.citrix.com/content/dam/citrix/en_us/documents/white-paper/citrix-hdx-technologies.pdf. Also be sure to check out the HDX resources page on Citrix.com at – https://www.citrix.co.uk/products/xenapp-xendesktop/hdx-technologies.html.

Finally you can find all the latest about XAD 7.16 and not just whats new with HDX in this release at – https://docs.citrix.com/en-us/xenapp-and-xendesktop/current-release/whats-new.html and you’ll notice that it’s not a 7.16 URL but refers to current release or CR.

HDX RealTime
Skype for Business to Teams “We are committed…” read all about it in Dereks blog post on Citrix.com – https://www.citrix.com/blogs/2017/11/08/the-big-news-about-microsoft-teams. The big announcement is that HDX RealTime Optimisation Pack now has an LTSR release version 2.4 which is available and you can learn more product lifecycle information at – https://docs.citrix.com/en-us/hdx-optimization/2-4-ltsr.html. Its also worth noting that this LTSR does NOT support any version of Microsofts Teams only Skype for Business 2015, 2016 you can learn more by reviewing the System Requirements for the client vs. server side at – https://docs.citrix.com/en-us/hdx-optimization/2-4-ltsr/system-requirements.html.

– HDX RealTime Media Engine for the Citrix Ready workspace hub (formerly known as HDX Ready Pi) is only supported for ViewSonic – https://citrixready.citrix.com/viewsonic/viewsonic-sc-t25.html or NComputing – https://citrixready.citrix.com/ncomputing/ncomputing-rx-hdx-thin-client.html Pi’s only. You can also get management of these devices from Stratodesk check out – https://www.stratodesk.com/products/raspberry-pi-thin-client.
– Behavioural changes in the way audio is handled in fallback mode when CPU is busy is to disable Echo Cancellation via the RTME as the generic HDX RealTime will handle this capability until returning to expected behaviour and lower CPU load.
– Enhancements to the microphone to provide better insights into whom is speaking.

The full list of what’s new in this LTSR is available at – https://docs.citrix.com/en-us/hdx-optimization/2-4-ltsr/whats-new.html.

HDX Broadcast
– The release of XAD 7.16 introduces a great new VDA installation behaviour change 🙂 whereby it will automatic set the HDX mode to be standard (Server OS) vs. HDX 3DPro mode (Desktop OS if it meets the requirements for HDX 3DPro e.g the Desktop OS includes a vGPU or GPU) which I believe is setup in the right direction and simplifying overall CTX Admin overhead e.g another syntax option to remember vs. I forget to configure the correct parameter.
– Now by default the new HDX Graphics mode is enabled is adaptive transport or EDT and is set to Preferred. Don’t worry if your a Citrix Admin as you’ve maybe already realised I didn’t enable UDP for this to work! Remember is an adaptive remote display protocol so it will fallback to TCP by default using the default Citrix HDX ports. Its also worth mentioning that when (Preferred) is set then SR is enabled for both UDP vs. TCP connections and client connections (Receiver check supported versions e.g Win min 4.10; Mac 12.8) are attempted in parallel during the initial connection, for SR reconnections and finally auto client reconnects aswell.
– Browser Content Redirection – https://docs.citrix.com/en-us/xenapp-and-xendesktop/current-release/multimedia/browser-content-redirection.html redirects the contents to the local device running an embedded browser within the HDX session which allows for offloading of content, network traffic, graphics from the VDA running in the resource location to the users end-point enhancing the UX significantly.
– Not strictly something new but HTML5 Redirection – https://docs.citrix.com/en-us/xenapp-and-xendesktop/current-release/policies/reference/ica-policy-settings/multimedia-policy-settings.html which is still currently only available for internal usage as you’ll read from the eDocs article but this is 100% something an Citrix Admin & Architects should begin testing today as HTML5 begins in my personal view to supersede Flash based websites as we move forward towards 2020.
– Auto DI Scaling for Multi-Monitor
– H.265 encoding support running on the latest end-points which supported a GPU that supports H.265 decoding and if its not available it will by default fall-back to H.264 decoding. The net result of moving to H.265 from H.264 which is a Platinum only feature results in significant bandwidth savings and much better UX. I have seen the net results with a few of our engineering customers that develop vehicles with teams spread out across the world and the results as awesome!
– Strictly speaking this is not agnostic or exclusive to the HDX technology stack but the Windows Continuum is quiet important for a great user experience and its powered by primarily at a the hypervisor level and its currently only supported on Citrix XenServer. Visit – https://docs.citrix.com/en-us/xenapp-and-xendesktop/current-release/technical-overview/hdx.html for how-to configure it today if your running XenServer.

– High definition webcam streaming for Windows Server with resolutions up to 1920×1080 – https://docs.citrix.com/en-us/xenapp-and-xendesktop/current-release/technical-overview/hdx.html#hd-webcam
– “Session Watermark” with custom text which you learn to setup and configure using the following CTX article – https://support.citrix.com/article/CTX230054 and was originally part of the XenApp Secure Browser and its deployment guide is available at – https://docs.citrix.com/content/dam/docs/en-us/workspace-cloud/downloads/Secure%20Browser%20-%20Deployment%20Guide.pdf.

In Closing
I be covering off some HDX topics in more detail in up and coming blog posts either here or in “Expert Insights” at myCUGC website at – https://www.mycugc.org/. Finally if you want to take part in my challenge for 2018 you can learn more about it at – https://www.mycugc.org/blog/a-2018-challenge-for-the-mycugc-community.

Understanding What’s New with the latest XenApp & XenDesktop 7.15 LTSR

Shortened Names
WEB INTERFACE – wif
LONG TERM SERVICE RELEASE – ltsr
CURRENT RELEASE – cr
FEDERATED AUTHENTICATION SERVICE – fas
SECURITY ASSERTION MARKUP LANGUAGE – saml
IDENTITY PROVIDER – idp
NETSCALER UNIFIED GATEWAY – nug
XENAPP – xa
PROVISIONING SERVICES – pvs
XENDESKTOP – xd
XENAPP/XENDESKTOP – xad
STOREFRONT – sf

What is the difference between LTSR vs. CR for XenApp & XenDesktop 7.x?
The Long Term Service Release (LTSR) program for XenApp and XenDesktop provides stability and long-term support for XenApp/XenDesktop releases while the Current Release (CR) provides customers with the very latest version of XenApp and XenDesktop which includes the latest innovations e.g EDT v2

XenApp & XenDesktop 7.15 LTSR Feature Summary Comparison with 7.6 LTSR
The following is a simple one PDF page document that lists all the feature capabilities from initial first LTSR which was XenApp & XenDesktop 7.6 Feature Pack (FP) 1-3 through to the current LTSR XAD 7.15 including the CR releases in-between so its absolutely worth booking marking in your browser or better yet download it to keep it to hand for customer conversations – https://www.citrix.com/content/dam/citrix/en_us/documents/data-sheet/xenapp-xendesktop-715-ltsr-feature-summary-comparison-to-76-ltsr.pdf.

Noteworthy Points What’s New vs. Excluded
I’d very strongly recommend that your read the following CTX article – https://support.citrix.com/article/CTX205549 entitled “CTX205549 FAQ: XenApp, XenDesktop, and XenServer Servicing Options (LTSR)” and to ensure that you remain compliant post your update/migration to 7.15 LSTR you should download the “CTX209577 Citrix LTSR Assistant” https://support.citrix.com/article/CTX209577

Its also worth noting the following that are classed as “Excluded Features/Components/OSes” from the XAD 7.15 LTSR but I’d like to stress PLEASE PLEASE refer for eDocs for full caveats vs. supporting statements at – https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-15-ltsr/whats-new/7-15-ltsr-initial-release-.html+ and these listed notes are based upon the initial release however there is now a Cumulative Update 1 (CU1) already available so be sure to read through it as well at – https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-15-ltsr/whats-new/cumulative-update-1.html.

OSes+
– Windows 2008 32-bit (for Universal Print Server)

Behavioural Changes
– Upgrading a XA 6.5 worker to a new 7.15 VDA is now slightly different and the detailed process is listed at – https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-15-ltsr/upgrade-migrate/upgrade/upgrade-xenapp-6-5-to-vda.html and also be sure to review the XenApp 6.x Migration Tool at – https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-15-ltsr/upgrade-migrate/xenapp-worker-upgrade.html and you review the migration tool by watching the embedded YouTube video below.

Finally while your planning your migration to XA 7.15 (FMA) from 6.5 (IMA) you will mostly likely be upgrading vs. migrating away from WIF so please be sure to read and how to migrate features to StoreFront from your WIF environment at – https://docs.citrix.com/en-us/storefront/3-12/migrate-wi-to-storefront.html. Equally I’d encourage any organisation reading this to review how-to setup and configure the “unified user experience” for Citrix Receiver vs. the Green Bubbles which will provide a much better experience for users you can enable it by quiet easily once you’ve read through the following article in eDocs at – https://docs.citrix.com/en-us/storefront/3-12/manage-citrix-receiver-for-web-site/unified-receiver-experience.html.
– Follow the supported leading best practises for upgrading the 7.15 LTSR by reviewing the following node within Citrix’s eDocs – https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-15-ltsr/upgrade-migrate/upgrade.html
– VDA installation failures for Win 10 N Editions that don’t include Microsoft Media Foundation can now be acknowledged via the installation GUI of the VDA vs. automated deployed (unattended) there is a new option “/no_mediafoundation_ack“.

Excluded Features & Compoments+
– HDX Graphics Mode – Framehawk
– StoreFront Citrix Online Integration
– AppDisks
– Personal vDisk is excl for Win 7, 10
– Load balancing of Session Recording which was an experimental feature in 7.14

What’s Deprecated in the 7.15 LSTR
A full list of what is deprecated is available at – https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-15-ltsr/whats-new/removed-features.html and I am only going to list a few points that I believe of most interest to those whom read my blogs or if your just a Citrix SysAdmin vs. Consultant reading this blog post.

– No VDA installations on Windows XP will be supported
– Flash Redirection ++Hello HTML5 GOODBYE Flash wahoo!
– Citrix Receiver for Web classic experience (“green bubbles” user interface) ++Oh YES double wahoo!
– VDAs on Desktop – Windows 10 version 1511 & Windows 7, 8.1 and for Server – Windows Server 2008 R2 and Windows Server 2012
– Legacy Thinwire + DirectX Command Remoting (DCR) switch to Thinwire ECM or Adaptive Display v2 see – https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-15-ltsr/graphics/thinwire.html
– In-place upgrades of certain XAD infrastructure components aren’t supported!
– Studio on Windows 7
– Azure Classic support

^{++ Personal comment vs. note from the author of the post}

XenApp and XenDesktop 7.15 LTSR baseline components
VDA for Desktop OS 7.15
VDA for Server OS 7.15
Delivery Controller 7.15
Citrix Studio 7.15
Citrix Director 7.15
Group Policy Management Experience 3.12
StoreFront 3.12
Provisioning Services (PVS) 7.15
Universal Print Server 7.15
Session Recording 7.15 (Platinum Edition only)
Linux VDA 7.15 (See the Linux VDA documentation for supported platforms)
Profile Management 7.15
Federated Authentication Service 7.15

7.15 LTSR Compatible Components and Platforms
AppDNA 7.15
Citrix SCOM Management Pack for License Server 1.2
Citrix SCOM Management Pack for Provisioning Services 1.19
Citrix SCOM Management Pack for StoreFront 1.12
Citrix SCOM Management Pack for XenApp and XenDesktop 3.13
HDX RealTime Optimization Pack 2.3
License Server 11.14.0 Build 21103
Workspace Environment Management 4.4
App Layering 4.3
Self-Service Password Reset 1.1

What’s New
– Machine Catalog’s functional level within your Site from 7.9 do not require an upgrade
– Machine Creation Services (MSC) now supports generation 2 VMs with Microsoft System Center Virtual Machine Manager SCVMM
– The FMA or 7.x version of Local Host Cache (LHC) is now enabled by default BUT note that if it was disabled from a prior release of the XAD 7.x then you need to enable it and disable Connection Leasing (CL) https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-9/manage-deployment/connection-leasing.html which was initially introduced into the 7.x platform to provide a fallback if your SQL database connection was lost or unavailable until LHC was re-introduced in XAD 7.12 – https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-12/manage-deployment/local-host-cache.html but was not enabled by default in the 7.12 release CL was primarily utilised.
– Director App Failure Monitoring – https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-15-ltsr/policies/reference/virtual-delivery-agent-policy-settings/monitoring-policy-settings.html#App_Failure_Policy_Settings

Security Leading Best Practises
– General Overview https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-15-ltsr/secure/best-practices.html.
– Securing your StoreFront 3.12 environment – https://docs.citrix.com/en-us/storefront/3-12/secure.html
– Standardise on a single organisation user identity platform e.g AAD by leveraging NetScaler + + StoreFront + FAS which can convert SAML vs. OAuth tokens into virtual smartcards per configured Store within StoreFront to then SSO a user onto there intended virtual apps & desktops without requiring to re-enter his/her in a directory username + password for that resource location (What’s this? Read – https://docs.citrix.com/en-us/citrix-cloud/citrix-cloud-resource-locations.html).
– Slightly obvious to an Citrix expert vs. Citrix Partner but its worth highlighting for newbies to Citrix virtualisation technologies is that XAD management provides Delegated Administration to manage just enough access for different members of the IT vs. compliance departments/business units to have just enough access to complete there daily vs. weekly vs. monthly activities vs. tasks – https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-15-ltsr/secure/delegated-administration.html and for remote secure access to virtual apps & desktops you will need implement NetScaler Unified Gateway – https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-15-ltsr/secure/storefront-netscaler.html which can also enable and allow your organisation to control authentication at the edge of your network e.g 2FA vs. MFA vs. using Biometrics with supported 3rd Citrix Ready solutions so check out – https://citrixready.citrix.com. Finally you can also engage with SmartAccess capabilties when fronting XAD for R/A with NUG so check out the following resources for NS 11.x.n – https://docs.citrix.com/en-us/netscaler-gateway/11/integrate-web-interface-apps/ng-smartaccess-wrapper-con/ng-smartaccess-xd-config-con.html and NS 12.x.n – https://docs.citrix.com/en-us/netscaler-gateway/12/integrate-web-interface-apps/ng-smartaccess-wrapper-con/ng-smartaccess-xd-config-con.html and there is also a CTX article entitled “CTX227055 Smart Access Guide for NetScaler Gateway, StoreFront and XenDesktop” to review at – https://support.citrix.com/article/CTX227055 and finally you can configure Pre-Authentication scans to check that the connecting end-point is compliant (Refer to VDI Handbook section below).
– Enabling TLS or Transport Layer Security for ICA/HDX Session – https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-15-ltsr/secure/tls.html for a detailed how-to from the first LTSR check out the following blog article at – https://www.citrix.com/blogs/2014/12/11/how-to-secure-ica-connections-in-xenapp-and-xendesktop-7-6-using-ssl/ or download the white paper entitled “Citrix XenApp and XenDesktop 7.6 LTSR FIPS 140-2 Sample Deployments” from – https://www.citrix.com/content/dam/citrix/en_us/documents/about/citrix-xenapp-and-xendesktop-76-fips-140-2-sample-deployments.pdf. During some research I also came across the following CTX article to disable TLS 1.0 for XAD 7.6 LTSR which may or may not be useful to you check out – https://support.citrix.com/article/CTX215447.
– How do I assign the right vs. relevant security or UX policy? Refer to the built-in policy templates which you can read at – https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-15-ltsr/policies/policies-templates.html which include the same policy type for modern vs. legacy OSes.

Citrix VDI Handbook for the 7.15 LTSR
Recommended pages of interest to read from “Citrix VDI Best Practices for XenApp and XenDesktop 7.15 LTSR” – https://docs.citrix.com/content/dam/docs/en-us/xenapp-xendesktop/7-15-ltsr/downloads/Citrix%20VDI%20Handbook%207.15%20LTSR.pdf which I am commonly asked about so I thought it makes sense with the current LTSR to list them out here for everyone to focus on what is right vs. relevant for PoC’s e.t.c

– Page 11 which focus on CCS Methodology
– Page 32 Five-Layer Design Model and Conceptual Architectures for XAD environments
– Page 35-37 Site topology covering latency, bandwidth vs. number of users
– Page 50-52 covers StoreFront keywords to the behaviour of the delivery of virtual resoucres
– Page 52 Scaling vs. sizing of your StoreFront cluster
– Page 54 Calculate what NetScaler required SSL through-put however i’d strong recommended engage with your Citrix rep for leading best practise vs. guidance as this can/may differ dependant upon your choose appliance vs. firmware version.
– Page 58 Implement GSLB with HDX Optimised routing to ensure connecting users in a regional vs. global deployment connect to better NUG by proximity.
– Page 63 HDX Display Protocol
– Page 66- User Profile types for Local, Roaming, Mandatory & Hybrid vs. virtual apps & desktop chooses model
– Page 79 Built-in Policy templates to optimise the UX based upon your organisational requirements
– Page 88-93 vCPU/RAM/Storage I/O vs. User workload types light, medium and heavy
– Page 94-97 SQL database sizing vs. scaling 5K up to 15K including expected database growth
– Page 98-99 PVS SQL database guidance for suggested sizing
– Page 104 XAD Controller sizing vs. scaling per 5K users which also includes a calculation
– Page 105 LHC considerations if enabled to re-size your control infrastructure for XAD
– Page 107 Citrix Cloud connector sizing for 5K users in private vs. public cloud
– Page 113-116 SQL Database sizing
– Page 121-129 PVS Accelerator with XenServer
– Page 132-140 Hardware Formulas for sizing vs. scaling including GPU(s)

Deploying a XAD 7.15 LSTR PoC
Coming…

What Citrix Receiver & HDX Optimisation Pack should I deploy?
You should consider reviewing and if fit for purpose for your organisation implement the Windows 4.9 LTSR Citrix Receiver version – https://docs.citrix.com/en-us/receiver/windows/4-9.html along with if you utilise Skype for Business for UC the LTSR of the HDX Optimisations Pack – https://docs.citrix.com/en-us/hdx-optimization/2-4-ltsr.html and you can find out more information about the lifecycle at – https://support.citrix.com/article/CTX200466.

2017 UKI #CitrixPartnerLove Challenge #7 Stop the Difference

The views expressed here are my own and do not necessarily reflect the views of Citrix.

You can download the image at https://t.co/nqooPlWElw to print.

What’s New in XenApp & XenDesktop 7.13

The following content is a brief and unofficial prerequisites guide to setup, configure and test delivering virtual apps and desktops powered by XenApp & XenDesktop 7.13 prior to deploying in a PoC, Pilot or Production environment by the author of this entry. The views, opinions and concepts expressed are those by the author of this entry only and do not necessarily conform to industry descriptions or best practises. The views expressed here are my own and do not necessarily reflect the views of Citrix.

Shortened Names
SECURITY ASSERTION MARKUP LANGUAGE – saml
LOCAL HOST CACHE – lhc
XENAPP – xa
XENDESKTOP – xd
XENAPP/XENDESKTOP – xad
WINDOWS – win
VIRTUAL DELIVERY AGENT – vda
HIGH DEFINITION EXPERIENCE – hdx
VIRTUAL DESKTOP – vd
CUSTOMER EXPERIENCE IMPROVEMENT PROGRAM – ceip
VIRTUAL APPS – va
DATA TRANSPORT LAYER – edt
FIREWALL – f/w
ACCESS CONTROL LISTS – acl
ADVANCED MICRO DEVICE – amd

What’s New
A full and complete list of what’s new is avaiable at – http://docs.citrix.com/en-us/xenapp-and-xendesktop/7-13/whats-new.html. I’ll start with one of my Citrix passions which is any and everything surrounding HDX technologies.

1. HDX Adaptive Transport is disabled by default in XAD 7.13* also referred to as EDT is a new HDX graphics mode that utilises both the UDP and TCP protocols with a fallback to TCP where UDP isn’t available. The HDX engineering team have engineered this new Citrix protocol called Enlightened Data Transport (EDT) which utilises the existing Citrix ports 1494 (ICA/HDX) and 2598 (Session Reliability) for both TCP and now new UDP so f/w ACL changes are near enough straight forward. To test this new graphics mode internally:

– Configure the ACL between your test end-point and through your internal network (over a VPN) VM running the 7.13 VDA to allow UDP and TCP for 1494, 2598
– Your test VM instance could be running in Azure (connected on-prem via a VPN) or on XenServer 7.1 and remember must be running the latest desktop or server VDA
– Your test end-point must be running the following min Citrix Receiver versions for Windows 4.7, Mac 12.4 and for iOS 7.2
– *In Studio create a machine catalogue, delivery group or use an existing one with your VDA upgraded from e.g 7.12 to 7.13 and then create a new HDX policy e.g HDX-TestofEDT and select the following HDX policy entitled “” and choose “Preferred“.

2. AMD Multiuser GPU (MxGPU e.g GPU Virtualization works with vSphere only) on the AMD FirePro S-series server cards for HDX 3D Pro workloads only e.g Desktop OSes ref – http://docs.citrix.com/en-us/xenapp-and-xendesktop/7-13/hdx/gpu-acceleration-desktop.html+ with support for up to 6 monitors, custom blanking & resolution, high frame rate and only GPU Pass-through is supported on the following hypervisors XenServer and Hyper-V. For further details please ref to the AMD website at – http://www.amd.com/en-us/solutions/professional/virtualization.

3. Intel Iris Pro (5-6th Gen Intel Xeon Processor E3) graphics processors supports H.264 h/w encoding for virtual apps & desktops, HDX 3D Pro support for up to 3x monitors (Ref to install options+), custom blanking & resolution, high frame rate. For further details and compatible Intel processors ref to – http://www.intel.com/content/www/us/en/servers/data-center-graphics.html

4. Other HDX enhancements include:

– Bidirectional content redirection – http://docs.citrix.com/en-us/xenapp-and-xendesktop/7-13/policies/reference/ica-policy-settings/bidirectional-content-redirection.html
– Wacom tablets improvements & connection methods – http://docs.citrix.com/en-us/xenapp-and-xendesktop/7-13/hdx/usb.html and also see http://docs.citrix.com/en-us/xenapp-and-xendesktop/7-13/policies/reference/ica-policy-settings/usb-devices-policy-settings.html
– File copying performance enhancements for client drive mapping

5. StoreFront 3.9 support for the following below and for a closer look check out the following CTX blog article – https://www.citrix.com/blogs/2017/02/24/whats-new-in-storefront-3-9/

– HDX Adaptive Display
– CEIP automatic enrollment by default. To disable please ref to http://docs.citrix.com/en-us/storefront/3-9/install-standard.html#par_anchortitle_8ea6
– Importing of NUG configurations (ZIP file or via PowerShell) into StoreFront to setup through the XAD Wizard using the latest NetScaler UG 11.1.51.21+ ref – http://docs.citrix.com/en-us/storefront/3-9/integrate-with-netscaler-and-netscaler-gateway/import-netscaler-gateway.html to reduce and avoid misconfigurations.
– Not new but if you’re looking to security harden your StoreFront standalone or cluster ref to – http://docs.citrix.com/en-us/storefront/3-9/secure.html
– SAML auth through against your preferred Store with NetScaler Unified Gateway configured as your IdP – http://docs.citrix.com/en-us/storefront/3-9/configure-authentication-and-delegation/configure-authentication-service.html#par_anchortitle_d712

5. The Connection Quality Indicator is not part of the XAD 7.13 release but an invaluable Citrix tool for Citrix SysAdmins check out its capabilities at – https://www.citrix.com/blogs/2017/02/22/citrix-connection-is-slow-not-really/ and you can download it from – https://support.citrix.com/article/CTX220774 and it also inclues group policies for better SysAdmin controls to enable or disable the tool which is supported from XAD 7.6 LTSR and upwards ref the CTX220774 article. The below image is taken from a Window 10 virtual desktop powered by XenDesktop 7.x.

6. Linux Seamless published applications from a Linux supported OS using the 7.13 VDA – http://docs.citrix.com/en-us/linux-virtual-delivery-agent/7-13/whats-new.html and also please read the publishing apps for Linux at – http://docs.citrix.com/en-us/linux-virtual-delivery-agent/1-4/suse/configuring/publish-apps.html for advanced tips and guidance on seamless mode vs. window manger configuration.
7. LHC in 7.13 introduces a new support feature for brokering operations for Citrix Cloud when the internet connection between the Citrix Cloud Connector and the Citrix Cloud control plane at – https://citrix.cloud.com/ is in a failed state or unavailable due to an ISP outage. You can also force an outage following the documentation available at – http://docs.citrix.com/en-us/xenapp-and-xendesktop/7-13/manage-deployment/local-host-cache.html++ by creating and manually modifying the following registry entry “HKLM\Software\Citrix\DesktopServer\LHC with entry of OutageModeForced” set to the value in the documentation++ to force an outage for testing and or evaluation purposes prior to implmenting Local Host Cache. I’ve embedded below a simple architectural recap of LHC introdcued in XAD 7.12 and you can read in more depth detail about Local Host Cache from a previous blog post available at – http://axendatacentre.com/blog/2016/12/13/whats-new-in-xenapp-xendesktop-7-12/.

Finally LHC still provides support for brokering operations for traditional XAD Controller Site Database on-prem ref ++. I’d also recommend that you watch this TechTalks To Go covering LHC in XAD 7.12 release.

8. Provisioning Services 7.13 now supports Linux streaming and a brand new caching technique only available and supported on XenServer 7.1 called PVS-Accelerator. Check the following YouTube video from Citrix entitled “Introducing PVS-Accelerator, only available with XenServer!” via https://twitter.com/juancitrix/status/835202277317148672.

9. HDX Thinwire enhancements in 7.13 have resulted in up to 60% bandwidth savings. Take a look at the following CTX blog post at – https://www.citrix.com/blogs/2017/01/11/hdx-next-cuts-bandwidth-by-up-to-60-yes-sixty-percent/ which has some great high level LoginVSI 4.1.6 graphics comparing Thinwire in 7.12 vs. 7.13 on Windows Server 2012 R2 and 2016.
10. AppDNA what’s new ref – http://docs.citrix.com/en-us/dna/7-13/whats-new.html now includes support for Windows 10 Anniversary Update (AU) and now defaultor analysis and reporting, Secure Web reports and finally improved importing to process to analysis OSes and apps. There are a few more to be sure to check out the whats news!

Deploying XenApp 7.13 for Evaluation & Testing Purposes
The fastest way to deploy and test the latest new features from Citrix XA 7.13 release with little to no effort is to deploy the “Citrix XenApp 7.13 Trial” from Microsoft Azure available and accessiable at – https://azuremarketplace.microsoft.com/en-us/marketplace/apps/citrix.citrix-xa?tab=Overview.

Trial up to 30 days of #Citrix @XenApp 7.13 today with ease in #Microsoft @Azure – https://t.co/0DnKb5k4TO pic.twitter.com/h9L75QbnJO

— Lyndon-Jon Martin (@lyndonjonmartin) March 4, 2017

Removed from XenApp and XenDesktop 7.13
Please be sure to read and review the complete removed features and future removal features within XAD 7.x platform topics on Azure Classic, AppDisks, Desktop OS support and supported HDX Graphics Modes e.t.c –
https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-13/whats-new/removed-features.html.

Viso Stencils from Citrix’s Ask the Architect – https://twitter.com/djfeller for XenApp and XenDesktop 7.13.

Image credit: https://twitter.com/djfeller/status/836557405173477376

https://virtualfeller.com/2017/02/28/visioxenappxendesktop713/

Understanding XenApp & XenDesktop 7.12 and What’s New

The following content is a brief and unofficial prerequisites guide to setup, configure and test delivering virtual apps and desktops powered by XenApp & XenDesktop 7.12 prior to deploying in a PoC, Pilot or Production environment by the author of this entry. The views, opinions and concepts expressed are those by the author of this entry only and do not necessarily conform to industry descriptions or best practises. The views expressed here are my own and do not necessarily reflect the views of Citrix.

Shortened Names
LOCAL HOST CACHE – lhc
XENAPP – xa
XENDESKTOP – xd
XENAPP/XENDESKTOP – xad
VIRTUAL DELIVERY AGENT – vda
HIGH DEFINITION EXPERIENCE – hdx
FLEXCAST MANAGEMENT ARCHITECTURE – fma
EXPERIENCE 1st – x1
INTERNAL – int
VIRTUAL DESKTOP – vd
VIRTUAL APPS – va
DATA TRANSPORT LAYER – edt

What’s New XenApp/XenDesktop 7.12
1. Yes it’s now avaiable & back “Local Host Cache” or LHC as it was most commonly reffered to previously and its back now within XAD 7.x Flexcast Mangagment Architecture (FMA) platform and everything you need to know is avaiable at – http://docs.citrix.com/en-us/xenapp-and-xendesktop/7-12/manage-deployment/local-host-cache.html* & https://www.citrix.com/blogs/2016/12/07/local-host-cache-for-fma/ but a few note worth points to mention below followed by an overview of LHC vs. Connection Leasing by a Citrix XenApp & XenDesktop PM Craig. I have also embedded a how-to enable below along with a basic and brief architectural overview of LHC in XAD 7.12 which is powered by FMA and not IMA which is for anything XA 6.5 and below.

– N.B LHC is disabled by default to enable it open up PowerShell in Admin mode or launching a PowerShell session using Studio and enter in the following “Set-BrokerSite -LocalHostCacheEnabled $true -ConnectionLeasingEnabled $false” once the command completes execute the following cmdlet “Get-BrokerSite” and check that the following value of “LocalHostCacheEnabled” is set to “True“. Note that CL is now also disabled and both CL and LHC should not be running simultaneously together as this is not supported.
– VDAs re-register with the elected XAD controller (broker)
– Support for up to 5K VDA’s
– LHC services “High Availability Service” performs shadow copy of the control info that the XAD Controller requires and the “Configuration Sync Service” will sync control info/data.
– Adequately size your XAD controllers correctly to account for the compute load required during an outage, please ref to the “RAM size” and “CPU core and socket configuration” sections under “Design considerations and requirements” at LHC documentation at – *.
– LHC utilises Microsoft SQL Server Express LocalDB and is auto installed when you install the XAD 7.12 controller and is installed regardless of weather LHC it enabled or not.
– Local Host Cache is enabled if connection leasing was disabled before the upgrade vs. Local Host Cache is disabled if connection leasing was enabled before the upgrade.
– To force an outage to test LHC in your home lab or organisations test/uat environment on the XAD controller open regedit as a Admin navigate to HKLM\Software\Citrix\DesktopServer\LHC” thereafter create a registry key “OutageModeForced” and set the value to 1 to force an outage mode once you have completed your tests then revert the value to 0. I would suggest prior to attempting to perform this test place a load with a few test by active users for Server VDA based workloads (XenApp) to best understand how LHC works in a failure scenario.

2. Thinwire Compatible Mode 8-bit color depth support (7.12 VDA only otherwise fallback to 24-bit by default) which is configured by select the following HDX policies.

– “ Use video codec for compression” and ref to “http://docs.citrix.com/en-us/xenapp-and-xendesktop/7-12/policies/reference/ica-policy-settings/graphics-policy-settings.html#par_richtext_bc19“ for a list of avaiable configurations please note that if configured for the entire screen then 8-bit is NOT SUPPORTED!
– “Preferred color depth for simple graphics” and select the “8-bit” value

3. HTML5 video redirection is now available for INT web sites (disabled by default) and can be enabled by configuring the “Windows Media Redirection” by referring to http://docs.citrix.com/en-us/xenapp-and-xendesktop/7-12/policies/reference/ica-policy-settings/multimedia-policy-settings.html#par_richtext_5 and you also need require to add the following “JavaScript files are located in %Program Files%/Citrix/ICA Service/HTML5 Video of the VDA installer to your website” a sample external test web page can be found at the “HDX HTML5 video redirection test page at – https://www.citrix.com/virtualization/hdx/html5-redirect.html”
4. Azure Hybrid Use Benefits support e.g enable or disable support for the Azure Hybrid Use Benefits (HUB).
5. Record sessions based on client IP addr or range, TLS 1.2 encryption during data transfer and finally highlight idle periods in Player
6. NetScaler UG now supports H/A of HDX Framehawk – http://docs.citrix.com/en-us/xenapp-and-xendesktop/7-12/hdx/framehawk.html with supported NS firmware builds for Framehawk which include 11.0.62 & 11.0.64.34 (+ preffered).
7. HDX Enlightened Data Transport (for evaluation only) or “EDT” – http://docs.citrix.com/en-us/xenapp-and-xendesktop/7-12/policies/reference/ica-policy-settings.html.

Very High Level Overview*

Adaptive Display
EDT (Evaluation Only)	TCP
UDP

High Defintion eXperience (HDX

– Only VDA’s configured with IPv4 addressing is supported
– Requirements XAD +VDA 7.12, StoreFront 3.8
– UDP setup on 1494 and 2598 on the VDA remember this is typically TCP but now must also be for UDP
– Enable policy setting “HDX Enlightened Data Transport“. Remember its DISABLED by default and you can setup 3x values “Preferred” UDP data transport is used where possible with a fallback to TCP, “Diagnostic mode” forces a UDP data transports with a fallback to TCP & “Off meaning TCP is used & does’nt affect HDX RealTime”
– If you are evaluating this then please refer to the “Tech Preview of New Adaptive Transport in 7.12” forum at – http://discussions.citrix.com/forum/1663-tech-preview-of-new-adaptive-transport-in-712/
– Note when testing directly from eDoc’s “the new data transport layer (“EDT”) is allowed by default in Citrix Receiver for Windows, however, by default, it will only attempt to use EDT if the setting in the ICA file for HDXoverUDP is Preferred or On” also please ref to the notes relating to Receiver on Mac’s

You can learn more about this evaluation by reading the following blog posts – https://www.citrix.com/blogs/2016/12/14/overcoming-latency-to-serve-a-global-user-population/* and https://www.citrix.com/blogs/2016/12/08/take-a-look-under-the-hood-of-next-generation-hdx/ by Citrix’s HDX PM Derek.

8. You can very easily setup and try XenApp 7.12 in Microsoft Azure today via Azure Marketplace by searching for “XenApp 7.12” or click the following link – https://azure.microsoft.com/en-gb/marketplace/partners/citrix/citrix-xacitrix-xa-trial/ after signing into the Azure Portal at – https://portal.azure.com/.
9. Tagging with “App Groups” now provides the ability to a tag a VM(s) so that when published virtual apps in Application Group or virtual desktops in a Delivery Group are restricted to launch from VM(s) that have been tagged.

10. Advanced Reboot Schedules

11. In StoreFront 3.8 you can create multiple IIS sites and thereafter use the following PoSH cmdlet below to create a StoreFront deployment within your own IIS sites – http://docs.citrix.com/en-us/storefront/3-8/plan.html. What does this actually mean? You can host multiple RfW sites (stores) with each having its own domain name. In order to create your custom websites in IIS for your Stores and ReceiverforWeb firstly open up PowerShell using Studio (Simple way) then close Studio. Next you MUST ensure that NO other StoreFront MMC snap-in consoles are open within your StoreFront cluster and also on the individual Windows server (minimised) that you are setting up IIS sites. StoreFront will disable the mgmt console and displays a message. TIP: To learn how-to setup IIS sites/website please visit – https://support.microsoft.com/en-gb/kb/323972

– From your open PowerShell window enter in the following which will create a custom IIS site/website for virtual apps and one for virtual desktops
– Type “Add-STFDeployment -SiteID 1 -HostBaseURL “https://www.storefront.app.com”” (Virtual apps)
– Type “Add-STFDeployment -SiteID 2 -HostBaseURL “https://www.storefront.desktop.com”” (Virtual desktops)
– Type exit and close the Powershell window prior to opening up Studio or a StoreFront MMC snap-in on any server in the StoreFront cluster

12. Although this one is not strictly new to StoreFront 3.8 and XenApp/XenDesktop 7.12 its often an overlooked feature (For CTX SysAdmins) which is the ability to securely export and then re-import your entire StoreFront configuration including using PoSH credentials for (de)encryption of the backup configuration. To learn more please check out – http://docs.citrix.com/en-us/storefront/3-8/export-import-storefront-config.html and use the feature prior to any StoreFront upgrades or migrations.

Deprecation Forecast
I would strongly recommend that you review and understand the Deprecation forecast announcements made during the XenApp/XenDesktop 7.12 release which is avaiable at – http://docs.citrix.com/en-us/xenapp-and-xendesktop/7-12/whats-new.html#par_anchortitle_5da8.

Top 10 Suggested Unified Experience Tips for Citrix Users 2016

The views expressed here are my own and do not necessarily reflect the views of Citrix.

Shortened Names
XENDESKTOP – xd
VIRTUAL DELIVERY AGENT – vda
HIGH DEFINITION EXPERIENCE – hdx
EXPERIENCE 1st – x1
XENAPP – xa
VIRTUAL DESKTOP – vd
THINWIRE COMPATIBLE MODE – tcm also known as ecm or thinwire+
SELF-SERVICE PASSWORD RESET – sspr
VIRTUAL GPU – vgpu
PROOF OF CONCEPT – poc

Suggested Top 10 for 2016
This is numbered 1 through 10 but in reality is in no particular order!

1. E-mail discovery for Citrix Receiver using DNS SRV records – http://docs.citrix.com/en-us/receiver/windows/4-3/receiver-windows-install-wrapper/receiver-windows-cfg-command-line-42.html internally and externally on the Gateway – http://docs.citrix.com/en-us/netscaler-gateway/10-1/ng-xa-xd-integration-edocs-landing/ng-clg-integration-wrapper-con/ng-clg-session-policies-overview-con/ng-clg-storefront-policies-con/ng-clg-storefront-email-discovery-tsk.html.
2. Implement SplitDNS or more technically correct “split-horizon DNS” – https://en.m.wikipedia.org/wiki/Split-horizon_DNS my favourite personally over email based discovery :-)!
3. Brand your NetScalers (Unified) Gateway – http://docs.citrix.com/en-us/netscaler-gateway/11-1/vpn-user-config/custom-portal.html and App Store (StoreFront) – http://docs.citrix.com/en-us/storefront/3-7/manage-citrix-receiver-for-web-site/unified-receiver-experience.html to match and keep it clear, clean and simple!

4. Implement HDX Adaptive Display v2 available in 7.11+ – http://docs.citrix.com/en-us/xenapp-and-xendesktop/7-11/policies/reference/ica-policy-settings/graphics-policy-settings.html as your default Graphics Mode and if you can’t then Thinwire Compatible Mode – http://docs.citrix.com/en-us/xenapp-and-xendesktop/7-11/hdx/thinwire.html.

5. If using Skype for Business 2015 or 2016 implement the HDX RealTime Optimisation Pack 2.x.n http://docs.citrix.com/en-us/hdx-optimization/2-1/hdx-realtime-optimization-pack-overview.html to offload the video/audio to the local end-points (Windows, Mac and Linux) saving on backend compute and density loss for XenApp.*

6. Implement domain pass-through for internal users – http://docs.citrix.com/en-us/storefront/3-7/plan/user-authentication.html.
7. Deploy the (latest) HTML5 Receiver for remote access – http://docs.citrix.com/en-us/receiver/html5/2-2/user-experience.html.

8. When using Citrix Receiver for Windows (with HDX engine 14.4), the GPU can be used for H.264 decoding wherever it is available at the client – http://docs.citrix.com/en-us/receiver/windows/4-5/improve.html.
9. Deploy Self-Service Password Reset (SSPR) – http://docs.citrix.com/en-us/self-service-password-reset/1-0.html.

10. The most difficult to justify probably re the cost(s) but assigning a low end vGPU GRID profile or utilising the Intel Iris Pro Graphics with XenServer 7 to provide enough/suitable GPU capacity to all virtual apps & desktops (oldISH and modern) provides a much better experience so setup a PoC to see and try if for yourself and finally NVidia now supports H.264 offloading onto there GRID Cards in 7.11 🙂 – http://docs.citrix.com/en-us/xenapp-and-xendesktop/7-11/whats-new.html#par_anchortitle_59c9.

HDX Thinwire “For actively changing regions” or HDX Adaptive Display v2

The following content is a brief and unofficial overview of the new HDX policy setting that enables HDX Adaptive Display v2. The views, opinions and concepts expressed are those by the author of this entry only and do not necessary conform to industry descriptions, best practises. The views expressed here are my own and do not necessarily reflect the views of Citrix.

Shortened Names
XENAPP – xa
XENSERVER – xs
XENDESKTOP – xd
XENAPP/XENDESKTOP – xad
VIRTUAL DELIVERY AGENT – vda
HIGH DEFINITION EXPERIENCE – hdx
INDEPENDENT COMPUTING ARCHITECTURE – ica
HDX ADAPTIVE DISPLAY V2 – hdxadv2

Introduction
The following capability is also referred to as Selective use of H.264, Selective H.264, HDX Adaptive Display v2 and Hybrid mode – https://www.citrix.com/blogs/2016/09/28/hdx-graphics-gone-hybrid/ but in this blog post it’s referred to as “HDX Adaptive Display v2” but its technical accurate name from eDoc’s is “Selective use of a video codec (H.264) to compress graphics” as reffered to here – http://docs.citrix.com/en-us/xenapp-and-xendesktop/7-11/whats-new.html#par_anchortitle_59c9.

Overview
In the release of XAD 7.11 (Seven11) a new Thinwire HDX policy was released which is part of the following policy Use video codec for compression” with the following option selected “For actively changing regions” which enables HDX Adaptive Display v2 – http://docs.citrix.com/en-us/xenapp-and-xendesktop/7-11/whats-kmnew.html#par_anchortitle_59c9 which blends the following Citrix HDX Graphics modes H.264 & Thinwire Compatible Mode together to offer the best UX but also to provide a balanced apporach by implementing the most right vs. relevant HDX graphics mode to offer the best rich & HD experience or near to local-like experience while balancing all compute, network resources between the server and or desktop VDA over the organisational network, internet to the users end-point.

The following CTX blog article – https://www.citrix.com/blogs/2016/09/28/lossless-compression-lowering-the-cost-of-pixel-perfection/ most accurately describes the what, the how and the why? So be sure read it and watch the following YouTube video demonstration entitled “Citrix Desktop Master Class – Adaptive Display v2 Demo by Lee Bushen“.

Understanding Actively Changing Regions
If you take a look at the below example of a YouTube web page (rendered in HTML in Oct 2016) e.g delivered as a virtual app published internet browser or a virtual desktop and you access the above YouTube web page HDX Adaptive Display v2 will selectively utilise H.264, Thinwire and overlay lossless text.

To further understand this in greater details please refer to this Citrix blog article first and foremost https://www.citrix.com/blogs/2016/09/28/lossless-compression-lowering-the-cost-of-pixel-perfection/ and then watch
Citrix Desktop Master Class – What’s New in XenApp/XenDesktop 7.11 – Sept 2016available at – https://www.youtube.com/watch?v=rGHdTX202_U but scrub to 1:12:00 if you just want to understand HDX Adaptive Display v2 in greater detail.

Name of application e.g an Internet Browser

Organisation logo, banner of YouTube Channel
YouTube menu

YouTubeVideo

Title
Description

YouTube Channels

Organisation Videos Library

YouTube Video Thumbnail	YouTube Video Thumbnail	YouTube Video Thumbnail	YouTube Video Thumbnail	YouTube Video Thumbnail	YouTube Video Thumbnail
Title Owner	Title Owner	Title Owner	Title Owner	Title Owner	Title Owner

Start menu, taskbar and notification centre

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