# /etc/pam.d/common-account - authorization settings common to most services. # "Is this user allowed to use this machine?" # jimc hacks for Kerberos (krb5) authentication account required pam_nologin.so # Each mechanism has its own authorization items such as password aging. account required pam_krb5.so ignore_unknown_principals account required pam_ldap.so use_first_pass ignore_unknown_user ignore_authinfo_unavail account required pam_unix2.so use_first_pass