Re: telnet Help

From: Peter Jensen (usenet_at_pekajemaps.homeip.net)
Date: 07/21/04


Date: 21 Jul 2004 19:09:53 GMT

Atys wrote:

> Thanks for that, am starting a job that involves remote support of
> AP's, switches ect.. and will be using telnet to log into the devices.

Remote, as in across the Internet, or confined in the LAN? Never *ever*
telnet to *anything* across a network where you don't trust all users.

> I have a description of each command but wanted just to play around on
> my own network to get the feel of it so to speak.

There are no telnet commands, as such. A telnet connection is just a
direct TCP connection to port 23. The listening server usually connects
the incoming connection to a login program that then spawns the users
shell, while the client emulates some sort of terminal (like VT100).
Whatever commands are available in the shell and the target environment
is what you have to work with.

> I have found very little on telnet, on the net so was asking here for
> any info others might have. ie how to get it working on my linux
> (slackware) box, I understand that telnet is unsecure.

And for that reason it's not well supported any more. Just about any
device should be able to support SSH or something similar. I really
hope you know what you're doing, so you don't hang yourself with the
rope I'm about to give you:

Standard Linux telnet client and server:
ftp://ftp.uk.linux.org/pub/linux/Networking/netkit/

Telnet and telnetd ported from OpenBSD with IPv6 support:
ftp://ftp.suse.com/pub/people/kukuk/ipv6/

-- 
PeKaJe
Remember, there's a big difference between kneeling down and bending over.
		-- Frank Zappa


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