On Sun, Dec 03, 2023 at 11:52:51AM -0700, Charles Curley wrote: > On Sun, 3 Dec 2023 17:00:44 +0100 > Marco Moock <[email protected]> wrote: > > > > > > > How do you find 1994? It seems to be a mail from yesterday: > > > > For me it sounded like a joke. > > > > Telnet is unencrypted (although it is possible to run it over TLS to > > encrypt it) and SSH exists more than 20 years. > > True. None the less, there is at least one perfectly good use for > telnet: testing connections to servers. > > charles@hawk:~$ telnet hawk > Trying 127.0.1.1... > telnet: Unable to connect to remote host: Connection refused > charles@hawk:~$ telnet hawk 80 > Trying 127.0.1.1... > Connected to hawk.localdomain. > Escape character is '^]'. > ^] > telnet> quit > Connection closed. > charles@hawk:~$
Yes, there is plenty of use for the telnet *client*. Nobody disputes this. The question is whether anyone should be running a telnetd *server*. On an isolated network, it might be acceptable. But it's really a bad habit that should be stomped out aggressively, as machines which are currently on an isolated network might not remain there forever.
