Server certificate checking occurs for connections between Horizon Client and a server. A certificate is a digital form of identification, similar to a passport or a driver's license.
Your system administrator might ask you to set the certificate checking mode in Horizon Client to make sure that you can successfully connect to a server. At some companies, an administrator might set the certificate checking mode and prevent you from changing it in Horizon Client.
If a Horizon administrator has allowed it, you can set the certificate checking mode. To set the certificate checking mode, start Horizon Client and select from the menu bar. You have three choices:
Never connect to untrusted servers. This setting means that you cannot connect to the server if any of the certificate checks fail. An error message lists the checks that failed.
Warn before connecting to untrusted servers. This setting means that you can click Continue to ignore the warning if a certificate check fails because the server uses a self-signed certificate. For self-signed certificates, the certificate name is not required to match the server name that you entered in Horizon Client.
Do not verify server identity certificates. This setting means that no certificate checking occurs.