Administration

Solution
If you intend to keep the security server in your View environment, take these steps:
1 In View Administrator, select View Configuration > Servers.
2 On the Security Servers tab, select a security server, select Prepare for Upgrade or Reinstallation from
the More Commands drop-down menu, and click OK.
3 On the Connection Servers tab, select the View Connection Server instance that you want to pair with
the security server, select Specify Security Server Pairing Password from the More Commands drop-
down menu, type a password, and click OK.
4 Install the security server again.
If you intend to remove the security server entry from your View environment, run the vdmadmin -S
command.
For example: vdmadmin -S -r -s security_server_name
Troubleshooting View Server Certificate Revocation Checking
A security server or a View Connection Server instance that is used for secure Horizon Client connections
might show as red in View Administrator if certificate revocation checking cannot be performed on the
server's SSL certificate.
Problem
A security server or View Connection Server icon is red on the View Administrator dashboard. The View
server's status shows the following message: Server's certificate cannot be checked.
Cause
Certificate revocation checking might fail if your organization uses a proxy server for Internet access, or if a
View Connection Server instance cannot reach the servers that provide revocation checking because of
firewalls or other controls.
A View Connection Server instance performs certificate revocation checking on its own certificate and on
those of the security servers paired to it. By default, the VMware Horizon View Connection Server service is
started with the LocalSystem account. When it runs under LocalSystem, a View Connection Server instance
cannot use the proxy settings configured in Internet Explorer to access the CRL DP URL or OCSP responder
to determine the revocation status of the certificate.
You can use Microsoft Netshell commands to import the proxy settings to the View Connection Server
instance so that the server can access the certificate revocation checking sites on the Internet.
Solution
1 On the View Connection Server computer, open a command-line window with the Run as
administrator setting.
For example, click Start, type cmd, right-click the cmd.exe icon, and select Run as administrator.
2 Type netsh and press Enter.
3 Type winhttp and press Enter.
4 Type show proxy and press Enter.
Netshell shows that the proxy was set to DIRECT connection. With this setting, the View Connection
Server computer cannot connect to the Internet if a proxy is in use in your organization.
View Administration
208 VMware, Inc.