A service on UNIX that can be used to identify a TCP connection owner. Though it was first developed to be used as an authentication mechanism, today it is used primarily to log who does what activities.
See Also: Authentication; Log; TCP/IP or Transmission Control Protocol/Internet Protocol; UNIX.
Graham, R. Hacking Lexicon. [Online, 2001.] Robert Graham Website. http://www.linuxsecurity.com/resource_files/documentation/hacking-dict.html.
