squid.pamd

   1 #%PAM-1.0
   2 auth            required        pam_listfile.so item=user sense=deny file=/etc/security/blacklist onerr=succeed
   3 auth            required        pam_listfile.so item=user sense=deny file=/etc/security/blacklist.squid onerr=succeed
   4 auth            required        pam_unix.so
   5 account         required        pam_unix.so