Hi, I think I have found a bug in apache mod_auth_pam module version 1.1. The situation could cause the bug are the following: When a user is authenticate by mod_auth_pam and use only "require group" directive (no valid-user nor "require user"), the authentication will go through only when user primary group is in the group specified by "require group". I found this problem with version 1.1 of mod_auth_pam on Apache Linux authenticate against NIS+ server. Solution In line 467 of the mod_auth_pam.c, change if (!strcmp (*members, word)) to be if (!strcmp (*members, r->connection->user)) Here is the diff 467c467 < if (!strcmp (*members, r->connection->user)) --- > if (!strcmp (*members, word)) Regards, Nick Kanakakorn __________________________________________________ Do You Yahoo!? Yahoo! Health - Feel better, live better http://health.yahoo.com