configure ubuntu for stig id SRG-OS-000329-GPOS-00128

system/stig/ubuntu/files/common-auth

@@ -14,6 +14,7 @@
 # pam-auth-update(8) for details.
 auth required pam_tally2.so onerr=fail deny=3
 auth required pam_faildelay.so delay=4000000
+auth required pam_faillock.so preauth silent audit deny=3 unlock_time=604800 fail_interval=900
 # here are the per-package modules (the "Primary" block)
 auth    [success=1 default=ignore]      pam_unix.so nullok_secure
 # here's the fallback if no module succeeds