Berkeley r-commands
Authentication

Service
Service
Port
Transport
Refs
Client
Daemon
Port
Transport
Refs
rcp
rshd
514
TCP
-
rexec
rexecd
512
TCP
-
rlogin
rlogind
513
TCP
-
rsh
rshd
514
TCP
-
rstat
rstatd
-
UDP
-
ruptime
rwhod
513
UDP
-
rwho
rwhod
513
UDP
-

Question: Which clients use TCP port 514?
Answer: rsh and rcp use TCP port 514.