Guest C S S Posted September 16, 2008 Posted September 16, 2008 I want to determine what ports are being blocked by an intermediate firewall which I do not have control over, and which I'm not being told what ports are and are not blocked. What I'd like to do is run a program on a Windows server that will open all unopened ports and then I'll run a scanner such as nmap to see what is and is not being allowed through. NetCat could probably be used in such a way, I was wondering if there is something the already exists that can do this out of the box. Quote
Guest Valery Marchuk Posted September 16, 2008 Posted September 16, 2008 You can use any honeypot, for example KFSensor (http://www.keyfocus.net/kfsensor/). -- BR, Valery Marchuk "C S S" <CSS@discussions.microsoft.com> wrote in message news:A2F28552-BBCC-463A-93E1-B117E0AEFD8A@microsoft.com...<span style="color:blue"> >I want to determine what ports are being blocked by an intermediate >firewall > which I do not have control over, and which I'm not being told what ports > are > and are not blocked. > > What I'd like to do is run a program on a Windows server that will open > all > unopened ports and then I'll run a scanner such as nmap to see what is and > is > not being allowed through. > > NetCat could probably be used in such a way, I was wondering if there is > something the already exists that can do this out of the box. </span> Quote
Guest John Mason Jr Posted September 17, 2008 Posted September 17, 2008 C S S wrote:<span style="color:blue"> > I want to determine what ports are being blocked by an intermediate firewall > which I do not have control over, and which I'm not being told what ports are > and are not blocked. > > What I'd like to do is run a program on a Windows server that will open all > unopened ports and then I'll run a scanner such as nmap to see what is and is > not being allowed through. > > NetCat could probably be used in such a way, I was wondering if there is > something the already exists that can do this out of the box. </span> Well nmap has lots of options for determining open ports and getting past firewalls check the reference guide <http://nmap.org/book/man.html> Also if you can install/run wireshark on the server you could use a packet generation tool (hping, nemesis,scapy)to send packets and capture them with wireshark John Quote
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