Re: Which ports to block?

[mike () genxweb net]

Since most firewalls deny all traffic by default in theory you should have to
only creat teh allow rules for those ports.

But if you want since most firewalls also read from the top down you will need
to create the allow rules for those ports then at teh bottom you can do a deny
all rule. There should be a option to deny all traffic I would use that for
your last rule.


Quoting Ferino Mardo <RMardo () ALJOMAIHBEV com>:

> In setting up a "deny all" rule from a firewall, is it safe to block
> ports 0 to 65535 or only up to 1023? My interest are only to allow port
> 53 udp, 25, and 80.
>
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Ethical Hacking at the InfoSec Institute. Mention this ad and get $545 off 
any course! All of our class sizes are guaranteed to be 10 students or less 
to facilitate one-on-one interaction with one of our expert instructors. 
Attend a course taught by an expert instructor with years of in-the-field 
pen testing experience in our state of the art hacking lab. Master the skills 
of an Ethical Hacker to better assess the security of your organization. 
Visit us at: 
http://www.infosecinstitute.com/courses/ethical_hacking_training.html
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