Re:Secure Port Testing

["Ghaith Nasrawi" <libero () aucegypt edu>]

netcat

g.

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> From      : "Mailing Lists" itmaillist () gmail com
To          : security-basics () securityfocus com
Cc          :
Date      : Fri, 22 Oct 2004 14:49:36 -0400
Subject : Secure Port Testing

> Hello List,
>
> I am responsible for testing connectivity between customers and vendor
> sites and often need to verify and test firewall settings for extranet
> connections before the data link is available.  In the past I would
> just set up a test box on a test LAN on the external interface of the
> Firewall and pick a service and run it on  whatever port I need to
> test. I am looking for something more secure and configurable that
> wont put an actual service out in the open.  Hopefully a tool that
> will allow me to open ports on a windows / or *nix box without
> actually having a particular service running there.  Maybe a banner,
> or just something that will allow me to determine if the connection
> was successful.  Preferably I would like the ability to open multiple
> ports at a time and be able to make quick to changes.  My methodology
> is that if I get a positive connection I know the firewall is allowing
> me through and routing properly.
>
> Any recommendations for tools or different perspectives on how to test
> this will be greatly appreciated!
>
> Thanks.

"Our care should not be to have lived long as to have lived enough.",
Seneca