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(UDP) who UNIX machines will send out regular broadcast to this port giving a list of who is logged in. At the same time, UNIX machines will listen for these broadcasts and compile a database of who is logged onto which machines on the local area network (LAN).(TCP) rlogin Creates a remote login session similar to Telnet using "trusted" authentication. Incoming connections should be from hosts in the '.rhosts' file, and should be coming from ports between 512-1023.
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