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Linux Firewall Test
https://forum.linode.com/viewtopic.php?f=19&t=6764
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Author:  rdahbura [ Fri Feb 25, 2011 9:06 pm ]
Post subject:  Linux Firewall Test

Hi,

Does anyone have any recommendations on how to scan or test my Linode firewall's setup?

I'd like to be certain that what I think is open and closed is actually what's deployed.

Thanks!

Author:  iml [ Fri Feb 25, 2011 10:04 pm ]
Post subject: 

From outside:
Code:
nmap -v -A your.server

From inside:
Code:
netstat -ntulp

Iptables -L will list your current firewall rules. Or ufw status if you are on Ubuntu using that.

Author:  obs [ Sat Feb 26, 2011 12:59 am ]
Post subject: 

There's a nice gui for nmap at http://nmap.org/zenmap/ which is cross platform.

Author:  rdahbura [ Mon Feb 28, 2011 2:55 pm ]
Post subject: 

Thanks for the suggestions. Those worked great!

Author:  godbout [ Sat Jun 04, 2011 9:14 am ]
Post subject: 

Was looking for the same information.
Thanks a lot for the answers!

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