RE: nc question

["Rockson Li (zhengyli)" <zhengyli () cisco com>]

Do not use ',' as delimiter for arguments, use space instead.

And put double "-v" for nc

Like
# nc -z -v -v target ssh ftp telnet sftp rpc
target [22.22.44.11] 22 (ssh) open
target [22.22.44.11] 21 (ftp) : Connection refused
target [22.22.44.11] 23 (telnet) : Connection refused
target [22.22.44.11] 115 (sftp) : Connection refused
target [22.22.44.11] 530 (courier) : Connection refused  

-Rockson

-----Original Message-----
From: vijay shetti [mailto:vijay.shetti () gmail com] 
Sent: Friday, August 25, 2006 2:36 PM
To: security-basics () securityfocus com
Subject: nc question

hello friends!!

I have a query regarding netcat's usage for port scanning.

I am scanning a windows machine which has 2 ports open 80 and 3389.

c:>nc -z -v target 80,3389

It shows only port 80 open,it does not consider 3389 port as an
argument...

My question is if I want to scan only known ports like 21,23,80,3389
using netcat,then how can i specify them as argument?

regards,
Vijay.

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education and the case study affords you unmatched consulting experience.
Using interactive e-Learning technology, you can earn this esteemed degree,
without disrupting your career or home life.

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