Re: Telnet

[Charles Curley <charlescurley@charlescurley.com>]

On Sun, 3 Dec 2023 17:00:44 +0100
Marco Moock <mm@dorfdsl.de> 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:~$ 

The first attempt shows that hawk does not have a telnet server on the
default port. The second shows that it does have a server of some sort
on port 80, which is assigned to http.


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