Memory leak with Xenapp 6.5 and Edgesight 5.4!

I’ve taken a couple of calls already from troubled clients who have experienced memory leaks with running Edgesight on Xenapp 6.5 servers.  On my most recent call, this only seemed to impact the Zone Data Collector, and not the other servers in the farm.  My research concluded that Citrix had a private hot fix for this issue, which they’ve now made public.  This was just released on April 6th. I would recommend trying this hotfix for any manner of CPU / Memory utilization issue you may be having on Xenapp 6.5 servers that also have the Edgesight agent installed on them.  This hotfix will be included in the pending Citrix Xenapp 6.5 Roll-up Pack 1, I’m told.  If this doesn’t work, you may need to take memory dumps and upload them to Citrix for analysis.

To download the hotfix:


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Citrix Xenapp over VMWARE Best practices

I’m sitting in a VMWare class this week, studying hard for my VCP exam, and I came across a good document I thought I would share with other Citrix Techs.  If you’re in a similar situation to mine, you’re noticing that it’s not uncommon to see companies run Citrix Xenapp over VMWare these days, choosing it over the Xenserver product that is offered by Citrix.  I won’t get into a discussion (At least not in this blog) about the features and benefits of each, but I’ll simply say that if you are in a VMWare shop and need to know the best practices for deploying Xenapp over VMWare, be sure to have a copy of this guide handy:

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Considering moving your Citrix Xendesktop VDI’s from XP to Windows 7?

Have you been sticking with XP because you are putting off the pain and unknown consequences of upgrading your Citrix Xendesktop environment to Windows 7?  You’re probably not the only one fearing a lot of unknown issues you may encounter.

For these reasons — Citrix just released a very usable check list for you to follow when executing this strategy.  The document is clear, and covers a range of topics you will encounter with such a migration.  Topics include such areas as how to test your software applications between the different platforms, and what order to tackle each area of planning.

Check it out here:

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Will Citrix Netscaler VPX replace Citrix Secure Gateway?

Citrix Secure Gateway is a product that has been around forever.  It serves a purpose very clearly by providing you with a cheap (free) way to secure your Citrix environment via SSL so that users can connect from the outside world.  Many small companies chose to stick with Citrix CSG because it allows them to install the CSG on the same server as the Web Interface, and again it’s free.

Now that Citrix is giving Netscaler VPX to anyone with a platinum license, using this new virtual appliance has become somewhat of a no brainer.  If you have less than 200 users, the Netscaler VPX should meet your needs just fine without having to invest in hardware or additional license expenses.  My only caution would be that I have had a Citrix support engineer tell me that Netscaler VPX was not meant for production, and while many people choose to use it in production — there may be some limited logging and troubleshooting available on it versus the physical appliance Netscalers available for purchase.

If you are interested in playing with the Netscaler VPX, and you’d like to see how to get a free license for 1 year, I suggest checking out the video below.  You’ll get a great tutorial on how to deploy it virtually on a Xenserver, which is a great best practice to employ because it will allow you to snapshot the appliance in case you ever run into trouble.  The Netscaler VPX is a little more difficult to set up than the Citrix CSG, but it pays off in stability and robustness that simply isn’t offered in the former product.

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Desktop Virtualization Using Citrix XenClient and Intel Core vPro Processors

Full disclosure:  I am an INTEL shareholder! :)

XenClient is a product that people have been buzzing about for awhile now.  I don’t have many clients using it yet, but it’s capability to completely transform the way we do desktop virtualization looks very impressive.  When the technology is combined with the Intel VPro Processor, you can achieve an amazing graphical experience that gives the user the best experience possible.  Check out the demo below, and see if you’re as impressed as I was:

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Citrix Xenserver in a single breath? Brilliant!

I’m not sure who put this video together, but it’s pretty impressive.  They demonstrate to a VMWare guy that Citrix Xenserver can be installed in the amount of time he can hold his breath under water. haha — Brilliant!


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Error over RDP: The User Profile Service Failed the Logon

I ran into this one the other day, and the solution was so simple it threw my head for a spin.  Thought I would share it on the blog in case any other Citrix techs run into the same thing!

Software: Microsoft Server 2003, Citrix Presentation Server 4.5

Problem: Admins are complaining that when they log into some Citrix servers via RDP, they are getting profile unable to load errors.  The only account that can log in seems to be the domain admin account. Error: “The User Profile Service Failed the Logon” “User profile cannot be loaded”.  This happened after a weekend, so our best guess is that some Microsoft patches or updates ran during that time?

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Just when you thought you’d done it all with Citrix GoToMeeting!



Someone takes things up a notch! This couple hosted their wedding over Citrix GoToMeeting with HDFaces, incorporating the webcam functionality that now comes standard with the product. Think about how much they saved by not having to buy dinner for all those people! haha :D

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Should you attend Citrix Synergy?

Having been to Citrix Synergy a few times now, I can definitely provide an experienced opinion on this.  Synergy can cost you $1200+ depending on if you’ve been before or not, and should be considered a worthwhile investment in your Citrix career.  Most of the time your employer should pay for this small expense, but even if you have to go out-of-pocket, I highly recommend the investment.  When you compare the cost to some Citrix courses that can cost $5000+, you really can’t argue with the value that you receive by attending Citrix Synergy.

By attending Synergy, you’re going to gain attendence to a week’s worth of “break out sessions” which cover a wide variety of Citrix topics.  These sessions are mini-trainings provided by some of the biggest experts in the industry.  I’ve seen Citrix tech support sessions provided by some of the top escalation engineers at Citrix, and gained valuable knowledge that simply isn’t available anywhere else.  Through the break out sessions, I’ve been able to meet some of the industry experts like Brian Madden or Doug Brown.  These experiences definitely can’t have a price put on them.

In addition to the break out sessions, you will also have an unlimited opportunity for networking while at Synergy.  Most of this is done on the tradeshow floor, where various partners have booths set up to pitch their products and services.  By walking the floor with a pocket full of business cards, not only can you get your name out to countless other Citrix industry professionals, but you can make new friends that can open your eyes to new products and services that you never knew existed.

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Best Practices for Citrix Xenapp over Xendesktop released

Citrix Consulting released their best practices document (finally) for Xenapp and Xendesktop this week. If you haven’t seen it yet, check it out here:

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