From: Daniel De Marco <ddm at bartol.udel.edu> > auth required pam_env.so > auth sufficient pam_unix.so nullok try_first_pass > auth requisite pam_succeed_if.so uid >= 500 quiet > auth required pam_deny.so > What's the use of the pam_succeed_if line? It will only be reached if > the pam_unix doesn't succeed and from my understanding it will prevent > system accounts from logging in. Is it useless or am I missing > something? Pure speculation: 1. pam_unix just allows/disallows to go further in the checks. 2. succeed_if only let users accounts login 3. everything else, deny. JD