![]() ![]() You can find more detailed guidance and step-by-step procedures for analyzing and troubleshooting Citrix Virtual Apps and Desktops organized by category in my Citrix Virtual Apps and Desktops Troubleshooting e-book. ![]() If issue persists despite the Web browser cache reset and DNS flush, you may also want to manually set your hosts file on the end-user machine, in case the DNS service is having issues. #Check cache statistics, cache should now be zeroįor Debian-based systems sudo /etc/init.d/dns-clean restart Depending on your DNS service you will need to run the appropriate commands.įor the latest Ubuntu distributions #Ubuntu 20.04 If the cache-size parameter is not zero then the DNS cache needs to be flushed. In Debian-based Linux systems first check if DNS caching is enabled by running following command: ps ax | grep dnsmasq. In Windows systems run the following command in an elevated Windows terminal: ipconfig /flushdns. Step-by-step instructions for all major browsers can be found at. In most of the cases the issue is resolved with the following actions: This issue’s root cause is the end-user DNS resolver (client) not working properly. An example occurrence of this error is shown in the screenshot below. Meanwhile Ive uninstalled and reinstalled Citrix Receiver several times, but the issue cannot be fixed. When trying to launch a Citrix Virtual App or Desktop you receive the following error message:Įrror:”Cannot resolve the SSL Host name (SSL error 40)”. The network team confirmed that the Citrix Server & Network are ok, because another Citrix clients have not such issue. Install CA Signed SSL Certificate to Fix CyberArk PSM RDP Warning ![]()
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