Package talk-server

The talk server for one-on-one Internet chatting

http://web.archive.org/web/20070817165301/http://www.hcs.harvard.edu/~dholland/computers/netkit.html

The talk-server package provides daemon programs for the Internet talk
protocol, which allows you to chat with other users on different
machines. Talk is a communication program which copies lines from one
terminal to the terminal of another user.

System Administration
Command Description
in.ntalkd remote user communication server