Xenapp Slow Logons Troubleshooting Part2

We call these metrics “The Five Ls”: Launches Logon Times Load Times Latency ChanneL (Yes, including Channels is cheating, but mnemonics are worth it!) In this blog post, we’ll discuss how the Five Ls impact the performance and delivery of your Citrix applications and what actions you should take to improve performance in those areas. Special thanks to Ken Avram who originally compiled this content! Wire data analysis can provide you with real-time information about “the 5 Ls.

Enable Maintenance Mode on XenApp 6.5 App Servers

Starting from XenApp/XenDesktop 7.x we have maintenance mode option on the Citrix app servers directly. We can turn on or off the maintenance mode on the servers which will only disable Citrix sessions on those servers. RDP connection will still work on the faulty app server. In XenApp 6.5 appcenter, we can only disable logons to the servers which will also disable RDP access to the server. Using load evaluator, we can come around this issue and disable only Citrix logins, while making sure that RDP still works.

Citrix Docs

Citrix Logon Process XenDesktop 5 Logon Process XenDesktop 5 FAQ Best Practice XenDesktop with PVS XenDesktop 5 Reference Architecture Monitoring Citrix Infrastructure Operations Guide- Monitoring Communication ports used by Citrix Technologies Upgrade to XenApp 6 XenApp 5 Plugin for Hosted Apps INI(ICA) File Reference document Citrix XenApp FAQ XenServer_Technical_FAQ XenServer_610_Technical_FAQ Citrix Product Definitions XA - Windows 2008 R2 Optimization Guide_Final

Raspberry pi very slow or not responding at all

Have you configured raspberry pi in your environment? If yes, have you ever felt that it is very slow or not responding at all? I’ve had the same problem and I’ve fixed it. Read more to find the solutions that I’ve used to fix it. I have been using raspberry pi from last 3 years with sandisk 32 GB SD card. If you’re using raspberrypi you already know by now, they don’t sell charging socket separately.

Citrix Netscaler delay in reboot and license errors

Issue: We had to reboot our ADC. We were not able to save the configuration both from GUI and command line in ADC. We did a force reboot. When powering on, we observed lot of license related errors like “The license info cannot be fetched” " No licenses were found" etc.. But after logging in, we were able to see the license file. After netscaler is powered on, we were not able to login through GUI and ssh.

Secure XML Traffic Between Storefront and Delivery Controller (DDC) IMP

If you’d like to secure xml traffic from storefront to DDC, you should install certificates on the DDC. If you have IIS installed in your DDC server, then mapping the certificate to 443 is very straight forward process. Open IIS manager (inetmgr), select your server and then select server certificates. Import the certificate along with private key and bind it to 443. If you do not have IIS installed in your DDC server, then you should install the certificate on the DDC server and run netsh commands to link that certificate to citrix DDC software.

Citrix Director shows "no data is available for the specified time period"

After you upgrade your citrix site, or on a new citrix site creation, when you open director portal, under sessions/logon performance tab for logon duration details it shows “no data is available for the specified time period”. Based on your CVAD version, copy the source files into a folder on your VDA (app servers). Goto iso\x64\Virtual Desktop components folder and right click on UpmVDAPlugin_x64.msi file and click repair. complete repair and reboot the server.

Citrix VDA install doesn't show GUI

On a new install of VDA software from CVAD 1912 LTSR CU5 version, when you run the VDA software from AutoSelect.exe file and enter all the details, GUI does not show up showing the installation steps. Behind the scenes, installation never happens. This is observed on different CVAD versions. This is because in the registry path, HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce there was a key created with the name “!XenDesktopSetup” When you install VDA for the first time, it shows the GUI and VDA installation steps.

NetScaler Gateway URL white page

Issue: After upgrade, when you open the netscaler gateway url, instead of showing the username and password page, it immediately shows a white page. Solution: This is mostly seen when upgrading from 10.5 to 11. From a working netscaler copy the folder, /netscaler/ns_gui/vpn and replace this folder on your current netscaler. Refresh the gateway vip url. It should work. You can also check the gateway url. If it is /vpn/index.html, check the index.

NetScaler ADC - Http/1.1 Internal Server Error 43531

Issue: We have upgraded our netscalers to 13.0 84 version from 12.1. On RfwebUI theme for Citrix gateway VIP URL, the URL opens as expected but when users login, it immediately throws an error on screen “Cannot complete your request” On default theme (black theme), after users enters their credentials and click signin, it says Http/1.1 Internal Server Error 43531 Solution: We had classic policies on 12.1 version. For session policy, we had REQ.