By default, the authentication system looks up the domain in LDAP following the rules for domain lookup, and then looks up the user. However, if the
searchfordomain Auth option is set to "0" rather than the default value of "1", then the domain lookup does not happen and a search for the user (using the
searchfilter option's value) occurs directly under the LDAP tree specified by the
ugldapbasedn option. This is provided for compatibility with legacy single-domain schemas, but use is not recommended for new deployments as even a small company may go through a merger or name change which requires support for multiple domains.
The default value is: 1