Patrick Hemmer wrote:
Is there any way to create an ACL rule which will match if a client certificate was used on the connection or not?
This is usually not done via ACLs.
Basically you define an appropriate authz-regexp to map the subject DN of the cert (part of authc-DN) to an LDAP entry DN (authz-DN). Then your client has to send a SASL bind request with mechanism EXTERNAL.
Ciao, Michael.