On Mon, 20 Sep 2010, Ausmus, Matt wrote:
> To: CentOS mailing list <centos@xxxxxxxxxx>
> From: "Ausmus, Matt" <mausmus@xxxxxxxxxxx>
> Subject: Re: iptables
>
> When I was first learning iptables, I found "Rusty's Remarkably
> Unreliable Guides" to be an excellent resource on how iptables works.
> He covers each part of iptables and does it in a clear and easy to
> understand manner. If I remember correctly, the guides are also
> entertaining.
>
> http://people.netfilter.org/~rusty/unreliable-guides/
>
> I personally don't like any of the GUIs out there. I find them to be
> way to constricting compared to the sheer power and flexibility of
> iptables. You're better off going through the guide and googling and
> then just writing your rules in a text editor.
Yes, I agree.
I have my own iptables rules in a bash shell script to
replace the RH ones at boot time.
I also found Rusty's tutorials entertaining, and easy to
understand. Plus there's the man page, 'pinfo iptables' that
is quite concise.
Here's a nice description of CIDR address notation.
http://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing
Kind Regards,
Keith
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