Re: CentOS as a router

[Paul Heinlein <heinlein@xxxxxxxxxx>]

On Fri, 7 Aug 2009, James B. Byrne wrote:

> I am setting up a small CentOS-5.3 host to act as a router.  I have 
> the device configured and working.  What I am trying to accomplish 
> now is configuring the firewall so as to protect both the router and 
> the LAN. [....]

In the past, I'd have tried to craft the iptables rules by hand. Now, 
older and lazier, I rely on shorewall.

Shorewall generally produces pretty good rules. You can "compile" your 
logic to iptables rules without implementing them, so you could use 
shorewall to generate a set of rules that essentially do what you 
want, look them over, and then revise/implement the ones you like.

-- 
Paul Heinlein <> heinlein@xxxxxxxxxx <> http://www.madboa.com/
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