RE: verifying an open or closed port on an ip address

["Chris Wanstrath" <chrisw () cinci rr com>]

Nmap for Windows works great...You can access the command line with it
but, as with most to-Windows ports with GUIs, the GUI builds the command
line for you which is great for beginners.  It also shows you the
command line it will run once you select the scanning options you want
through the tabbed windows, so you can start to learn what the arguments
do even before knowing they exist.

The helpfile/documention is really easy to understand if you're new to
this kind of stuff.  And the really technical stuff you probably won't
need to worry about yet...

--
Chris Wanstrath : cwanstrath () lw-consulting net
LW Consulting   : www.lw-consulting.net

 

-----Original Message-----
From: Bradley Adams [mailto:bradley.adams () cas-inc com] 
Sent: Thursday, August 07, 2003 5:00 PM
To: security-basics () securityfocus com
Subject: Re: verifying an open or closed port on an ip address

In-Reply-To: <f81bce7b03194b19ba7ebd9defdf892e.ian () kingcon com>

A great tool that I use for this type of "information gathering" is
NMAP. 

Go to http://www.insecure.org It does a lot more than what you want 

however it has a simple command that you can use to see if a single port


is open on an IP address and you can use other types of "pings" other
than 

ICMP such as ACK and SYN. check it out. There is a windows version 

available however I don't know if it does command line. You can always 

install cygwin and emulate a unix/linux box on your windows box... go to


http://www.cygwin.com then you can use the cygwin unix emulation command


line version of NMAP.



l8tr

Bradley Adams

bradley.adams () cas-inc com

"You will hardly know who I am or what I mean"

"Linux... Power in the hands of a few"


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