Is that possible to let two(or above) moodle server auth user by one single ldap server??
It depends. If those two Moodle servers are separate than it is completely OK to let them authenticate against the single shared LDAP server. But if those two servers are supposed to be MNet peers, then only one of should authenticate users against LDAP. Users will roam from this "home server" to other peers.
If you allow authentication of both MNet peers against LDAP, then duplicate accounts will be created for users (one local account with auth method set to "ldap", the other once using the auth method "mnet").
If you allow authentication of both MNet peers against LDAP, then duplicate accounts will be created for users (one local account with auth method set to "ldap", the other once using the auth method "mnet").
thanks for reply
so that means i have to use different ldap on different moodle server when i want to make each moodle as a peer of community hub