- Enabled (the default)
- Disabled
Choose Enabled to require that the subject line of the remote server's certificate include the LDAP directory server host name. For this option to work properly, the subject line in the remote server's certificate must include its DNS host name. Keep the option enabled if you are sure that the X.509 certificate of the remote LDAP directory server contains the remote server's host name in the appropriate format.
The Domino CA and some other CAs provide a dialog box into which users enter the subject line when requesting a certificate. For example, the Domino CA prompts each user to enter the remote server's information -- such as, the common name, organizational unit name, organization name, state (or province), and country name. The Domino CA places this information in the subject line and adds the appropriate prefix (cn=, ou=, o=, and so on) to each field. If you used a Domino CA to create the remote server's certificate, enter the remote server's host name in the common name field when using the Verify server name with remote server's certificate option. For example, the Domino CA allows users to enter the following valid subject lines (mailserver.renovations.com is the server's DNS host name):
cn=mailserver.renovations.com, ou=sales, ou=marketing, o=renovations, st=mass, c=us
cn=mailserver, ou=sales - mailserver.renovations.com o=renovations, st=mass, c=us
To ensure that users enter the DNS host name properly, recommend that they enter it as the common name (cn=) when they request a certificate from the Domino CA. Other CAs may have different dialog boxes for entering the subject line; users must follow these dialog boxes to enter the remote server's DNS host name.