in.telnetd, telnetd — DARPA TELNET Protocol Server
Synopsis
/usr/sbin/in.telnetd
Description
The in.telnetd daemon is a server that supports the DARPA standard TELNET virtual terminal protocol. in.telnetd is invoked in the Internet server (see inetd(1M)), normally for requests to connect to the TELNET port as indicated by the /etc/services file (see services(4)).
in.telnetd operates by allocating a pseudoterminal device for a client, then creating a login process that has the slave side of the pseudoterminal as its standard input, output, and error. in.telnetd manipulates the master side of the pseudoterminal, implementing the TELNET protocol and passing characters between the remote client and the login process.
When a TELNET session starts ...
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