krb5-rlogin(1) on Linux
The text ffb5f153969c, as Debian 3.1 (Sarge) shipped it.
remote login
Flags it lists
-
-4 -
-7 -
-8 -
-F -
-L -
-PN -
-PO -
-a -
-c -
-d -
-e -
-f -
-k -
-n -
-t -
-x