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The amazing tool called netcat

Aug 16, 2009, 07:04 (1 Talkback[s])
(Other stories by Girish Venkatachalam)

"Of course you can argue that you can do the same thing with telnet too. Simply running

$ telnet 192.168.1.5 80
will tell us if a HTTP server is listening at port 80 in 192.168.1.5. nc will do the same thing with
 $ nc -v  192.168.1.5 80
You can run a TCP server on 192.168.1.3 with
 $ nc -l  -p 1234
and you can connect to it from another machine by
$ nc 192.168.1.3 1234 

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