Telnet

You can actually handle most clear text protocols 'manually'..
for example, to get a webpage, telnet to port 80 of the webserver

GET / HTTP/1.0
<enter><enter>

To send mail, telnet to port 25 of the mailserver
EHLO test.com
MAIL FROM:<test@test.com>
RCPT TO:<user@site.com>
DATA
Hello world
.

QUIT

(notice the .)

Read the RFC's or sniff a session that your browser / mail client handles, and replicate it.

BTW, as an alternative to telnet, use netcat.

I found this thread to be really informing thread.. good work guys;...

Sad but true I took networking in college and graduated and now work as a Systems Admin and I have only a brief knowledge of Telnet.. I think in school the spent about 5 minutes on it in passing.. we never actually used it what so ever..

What most people don't know is that Telnet is actually a protocol.. the 'telnet' command we use actually answers to what is called telnet negotiation... in fact you can manipulate the clear text protocols using any pure TCP connection.. I personally use Netcat in place of telnet since it is more 'pure'... in the sense that it just opens connections for me and recreates things faithfully on either end of the pipe..

If you haven't heard of netcat.. you've not been networking too much

I'll have to agree with you there!! My course that I took was networking.. but I mean it wasn't really a networking course.. more like a systems admin course.. I learned OS's and things like this.. almost nothing about cisco routers and TCP/IP and IPX/SPX.. I mean we touched on these things. . but it was more Novel/Linux/W2k then anything else..

Kinda pathetic.. and now.. at work I do more stuff related to GPO's/AD/Exchange/SMS more then anything else.. alot of troubleshooting.. nothing really to do with "hardcore Networking"... Hence why I'm working on my MCSE..

Someday if I don't get into mgt.. I hope to learn more about cisco routers.. I understand there is lots of money in that!! but sadly work for Cdn Gov.. they don't reward techinal expertise..

Hi i want to learn about telnet; the thing is thta some times the tutorial is boring; i am studing cisco at my school but i want to learn a lot about all fields about computers. also i dont know alot abut computers so if u can explain me everything nice and neat i will be very greatfullllllll

THANKKSSSSS a lot

well all that i need is some web sites that explain TELNET and how this can be used :lol: : :idea: : :idea: