rlogin is a software utility for Unix-like computer operating systems that allows users to log in on another host via a network, communicating via TCP port 513.
rlogin deployments typically trust other machines and the rlogin protocol relies on this trust. rlogind allows logins without password.
Some UNIX and UNIX-like distributions alias the rlogin command with SSH. In this case, it is not rlogin traffic but an encrypted SSH session.
This SonicWALL signature identifies legitimate rlogin traffic. |