[CentOS] CentOS 6.3 as Firewall/Router

Sat Jan 5 15:13:52 UTC 2013
me at tdiehl.org <me at tdiehl.org>

On Fri, 4 Jan 2013, Steve Campbell wrote:

> On 1/4/2013 12:21 PM, Tim Evans wrote:
>> On 01/04/2013 12:01 PM, Tim Evans wrote:
>>> I'm replacing an ancient Solaris 'ipf' firewall/router with a brand new
>>> CentOS 6.3 system.  In the olden days, I successfully used the attached
>>> iptables script (as /etc/rc.local) on Red Hat 5.x systems, but this
>>> doesn't seem to be quite working on the new system.
>>> Specifically, while it seems to be routing ok, you cannot connect to
>>> anything on the inside net (e.g., with ssh or a browser) and cannot
>>> connect to the system with ssh or anything else from elsewhere on the
>>> inside net. Yet arp shows this system active.
>>> Is there obsolete stuff here, and/or anything missing that would cause
>>> this?
>> Nevermind...  Temporary IP address in the script was wrong; corrected
>> and now working.  Will be glad to see comments, though.
> Use Firewall Builder. It makes things so much easier. And it's free.
> http://www.fwbuilder.org/

+1000 for fwbuilder.

Raw iptables commands are not only error prone but will make your brain hurt.


Tom			me at tdiehl.org		Spamtrap address	 		me123 at tdiehl.org