* [gentoo-user] workstation iptables
@ 2015-10-06 19:14 99% James
0 siblings, 0 replies; 1+ results
From: James @ 2015-10-06 19:14 UTC (permalink / raw
To: gentoo-user
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).
...................................
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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