Thread:Extension talk:LDAP Authentication/What happens to the existing user accounts after the LDAP extension is enabled?/reply

1: existing accounts will still exist in the database. You can merge these to new AD accounts using the User Merge and Delete extension. 2: Yes, if you use "$wgLDAPUseLocal = true;". This is actually what the option was designed for. When you are done migrating, turn this off. 3: Make the new group in LocalSettings.php by giving the group whatever rights you wish to give, and add/remove people to groups like you always have in MediaWiki. 4: It will replace the NetworkAuth extension. You can instead turn off restrictions for that IP address; for instance: