File ppp.pamd of Package ppp
#%PAM-1.0 auth required pam_nologin.so auth include common-auth account include common-account password include common-password session optional pam_keyinit.so revoke session include common-session
#%PAM-1.0 auth required pam_nologin.so auth include common-auth account include common-account password include common-password session optional pam_keyinit.so revoke session include common-session