Hello

You can have multiple LDAP-authentication servers specified with semicolon ;

Idea is that when the main server is unreachable Moodle should swith to secondary LDAP-authentication server.

I would like to see improvements when using two different servers for Moodle LDAP-authentication.

Moodle should check if the second server is online (ping) before trying the switch because now when second server is offline but main server is online the whole Moodle site is unusable/"frozen". In PHP documentation:

https://www.php.net/manual/en/function.ldap-connect.php#115662

it says "...does not have a mechanism to timeout on a user specified time" so someone should code this check to Moodle itself.