I have a CentOS 6 machine here and want to give SSH access for users from another forest, which is trusted. I got a temporary workaround, which is:
1) change content in /etc/pam.d/vncserver to
auth include password-auth
2) add these two lines /etc/pam.d/password-auth
auth sufficient pam_krb5.so use_first_pass realm=NEW.DOMAIN.NET password sufficient pam_krb5.so use_authtok realm=NEW.DOMAIN.NET
so it looks that way:
%PAM-1.0 This file is auto-generated. User changes will be destroyed the next time authconfig is run. auth required pam_env.so auth sufficient pam_unix.so nullok try_first_pass auth requisite pam_succeed_if.so uid >= 500 quiet auth sufficient pam_krb5.so use_first_pass auth sufficient pam_krb5.so use_first_pass realm=NEW.DOMAIN.NET auth required pam_deny.so account required pam_unix.so broken_shadow account sufficient pam_localuser.so account sufficient pam_succeed_if.so uid < 500 quiet account [default=bad success=ok user_unknown=ignore] pam_krb5.so account required pam_permit.so password requisite pam_cracklib.so try_first_pass retry=3 type= password sufficient pam_unix.so sha512 shadow nis nullok try_first_pass use_authtok password sufficient pam_krb5.so use_authtok password sufficient pam_krb5.so use_authtok realm=NEW.DOMAIN.NET password required pam_deny.so session optional pam_keyinit.so revoke session required pam_limits.so session [success=1 default=ignore] pam_succeed_if.so service in crond quiet use_uid session required pam_unix.so session optional pam_krb5.so
3) add new domain name to /etc/krb5.conf
4) restart SSH daemon
--> Works fine, but after each system-config-authentication (authconfig -update_all) the changes from 2) are overwritten (undone) and the SSH-connection is refused then.
My question is where to add the additional new domain to keep it working permanently. A simple substitution won't work, as the old domain / forest is still in use too.
Just adding the new domain just to /etc/krb5.so won't do the trick, as then it only checks the default domain, which is not "NEW.DOMAIN.NET". Any idea is welcome...