On 6 October 2015 at 22:14, James <wirel...@tampabay.rr.com> wrote:
>
> Hello,
>
> I just ran across this page:
>
> http://gentoo-en.vfose.ru/wiki/Iptables/Iptables_and_stateful_firewalls#State_basics
>
> It has a basic firewall using iptables.
> Not bad for a generic firewall on a openrc workstation.
> What is the best way to auto lauch this sort of firewall.sh ?
>
> Any improvements in this basic workstation firewall
> everything out, nothing in?
> A simple rule for ssh in only from the local lan
> (use 192.168.100.100 for example rule(s).
>
>

Hi,

I suggest you look into firehol package.
It creates iptables rules out of human readable policy.

Regards,
Alon

> ...................................
> firewall.sh
> ...................................
> #!/bin/bash
> # A basic stateful firewall for a workstation or laptop that isn't running any
> # network services like a web server, SMTP server, ftp server, etc.
>
> if [ "$1" = "start" ]
> then
>         echo "Starting firewall..."
>         iptables -P INPUT DROP
>         iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
> elif [ "$1" = "stop" ]
> then
>         echo "Stopping firewall..."
>         iptables -F INPUT
>         iptables -P INPUT ACCEPT
> fi
> ............................
>
> just launched manually as a script.
>
>
> Any good tools to quickly test this firewall from another local workstation?
>
>
> wwr,
> James
>
>

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