I'm working on setting up LDAP with multi master replication for virtualmin failover. I got to a point where replication is functional, and was putting the final touches on getting webmin to talk to LDAP before moving to Virtualmin specific steps. First, Webmin won't move 'LDAP Users and Groups' from Unused. It's working and configured. Second issue is that System->LDAP client was working and accessible across three servers. After going into the module configuration for it and clicking save, two servers now say "The NSS-LDAP configuration file was not found on your system." The third I didn't dare go into module settings.
What info can I give you to help you diagnose? I'm a bit new to the LDAP config - mostly puzzled pieced together from various sources, but two out of three servers are to the point where getent at least returns an LDAP user.