R-Services ¶

R-Services or R-Commands are a suite of networking tools to execute commands on remote systems. As they use cleartext and unsecure access controls, they were replaced by more secure protocols. 🔒

• rlogin: remote login
• rsh: remote shell
• rcp: remote copy
• rexec: remote command execution
• rwho: information about logged users
• ruptime: uptime of a remote host
• rusers: list of logged users
• rwall: sends a message to all logged users

🐊️ Ports: 512, 513, and 514.

Random Commands

$ rlogin IP -l username
$ rusers -al IP

• /etc/hosts.equiv
• .rhosts (username IP\n+ IP, +==anyone)