pamd(8) on Linux
The text 21a5b92b0bc0, as Debian 10 (Buster) shipped it. The page shows this text now.
PAM transaction server
Flags it lists
-
-daemon -
-fork -
-h -
-http -
-inetd -
-nofork -
-p -
-policy -
-secure -
-unsecure