Can I map 2, or more, different ldap realms? i.e. from 2 different domains?
So user 1 can access with firstname.lastname@example.org and user 2 can access with email@example.com
I did not see any limitations around this issue. But, the documentation does not say explicitly that it is allowed.
The configuration will be something like
xpack.security.authc.realms: ldap.realm1: order: 0 ... ldap.realm2: order: 1 ... ldap.realm3: order: 2