PAM_TIMESTAMP_CHECK(8)    (06/08/2020)     PAM_TIMESTAMP_CHECK(8)

     NAME
          pam_timestamp_check - Check to see if the default timestamp
          is valid

     SYNOPSIS
          pam_timestamp_check [-k] [-d] [target_user]

     DESCRIPTION
          With no arguments pam_timestamp_check will check to see if
          the default timestamp is valid, or optionally remove it.

     OPTIONS
          -k
              Instead of checking the validity of a timestamp, remove
              it. This is analogous to sudo's -k option.

          -d
              Instead of returning validity using an exit status, loop
              indefinitely, polling regularly and printing the status
              on standard output.

          target_user
              By default pam_timestamp_check checks or removes
              timestamps generated by pam_timestamp when the user
              authenticates as herself. When the user authenticates as
              a different user, the name of the timestamp file changes
              to accommodate this.  target_user allows one to specify
              this user name.

     RETURN VALUES
          0
              The timestamp is valid.

          2
              The binary is not setuid root.

          3
              Invalid invocation.

          4
              User is unknown.

          5
              Permissions error.

          6
              Invalid controlling tty.

          7
              Timestamp is not valid.

     Page 1                  Linux-PAM Manual        (printed 5/23/22)

     PAM_TIMESTAMP_CHECK(8)    (06/08/2020)     PAM_TIMESTAMP_CHECK(8)

     NOTES
          Users can get confused when they are not always asked for
          passwords when running a given program. Some users
          reflexively begin typing information before noticing that it
          is not being asked for.

     EXAMPLES
              auth sufficient pam_timestamp.so verbose
              auth required   pam_unix.so

              session required pam_unix.so
              session optional pam_timestamp.so

     FILES
          /var/run/sudo/...
              timestamp files and directories

     SEE ALSO
          pam_timestamp_check(8), pam.conf(5), pam.d(5), pam(7)

     AUTHOR
          pam_tally was written by Nalin Dahyabhai.

     Page 2                  Linux-PAM Manual        (printed 5/23/22)