Ryan Revord

NetScaler VPX loses network connectivity on VMware ESXi 5.5 build 2143827

 Netscaler  No Responses »
Oct 222014
 

Look like update ESXi550-201410101-SG 5.5U2 that causes network issues Netscaler VPX appliances. See the discussion at: https://communities.vmware.com/message/2438855#2438855

There is now a validated work around:

1) find where loader.conf is located on NetScaler VM    #find / -name loader.conf
For the uploaded NetScaler VM, there are 2 loader.conf: ./flash/boot/defaults/loader.conf and ./flash/boot/loader.conf, we only need to change the first one.
2) add “hw.em.txd=512” to loader.conf, this will change Tx ring size to 512 (note: do not set the ring size to 256, this will cause NetScaler VM core dump)
3) reboot the NetScaler VM
4) migrate it back to a host with latest patches
Edit:
Citrix released an article on the issue today:

64 Bit Icons revisited

 XenApp  No Responses »
Apr 032013
 

Today I got stuck publishing apps that had icons in the %windir%\System32\ folder on the XenApp server.  There are a couple ways around this but my personal favorite is to reference sysnative.

So lets say your trying to publish the TS Licensing Manager, the exe only sits in the 64 bit OS Path on 2008r2

%windir%\system32\licmgr.exe

You try and fix up the icon and you get

iconbrowser bad

So to fix this we change the path to

%windir%\sysNative\licmgr.exe

and we get the icon.

iconbrowser good

For more information check out the following links:

http://msdn.microsoft.com/en-us/library/windows/desktop/aa384187(v=vs.85).aspx

http://www.brianmadden.com/blogs/videos/archive/2012/02/16/lie-to-me-using-built-in-windows-system-filter-in-virtual-desktops_2C00_-a-video-from-BriForum-2011.aspx

Dressing up your published Applications

 XenApp  No Responses »
Apr 032013
 

So I like to have a group that can run every and all published application so I can login and at least smoke test them.

Thats far to much clicking for me, so powershell to the rescue.

Those 3 lines gets Citrix_Admins into EVERY published application, not to shabby.

Lets take it a bit further, you need to add say multiple groups, but only to a folder of published applications..

No problem..

So in my environment all my MMC’s etc are published in the Applications\Utils path for readability.

But wait, what was I thinking, giving domain users access to all my published utilities!

No problem we can use the same trick in reverse to rid ourselves of those extra accounts.

Now there is a neat glitch, if you run these powershell commands with a actively running AppCenter you’ll need to select applications and hit F5 to refresh and actually see your changes did take effect.

 

Enjoy!

Ryan

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