LinuxQuestions.org - how to make an effective firewall with iptables

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- - how to make an effective firewall with iptables (https://www.linuxquestions.org/questions/linux-newbie-8/how-to-make-an-effective-firewall-with-iptables-264238/)

how to make an effective firewall with iptables

would you guys say this is an effective firewall script,

iptables -F
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
iptables -A INPUT -i eth0 -j DROP

Quote:

would you guys say this is an effective firewall script,

No, you need a whole lot more stuff. I'd go to:

http://linux-firewall-tools.com/linu...all/index.html

...where you answer a bunch of questions, and it writes an IPTABLES or IPCHAINS firewall for you. Then you'll see what you're missing.

Sadly, you now need to ask the author for a password, but it's free.

But personally, I'd use IPCHAINS. It looks like you're not intending to do anything which would require IPTABLES, and IPCHAINS is simpler to configure.

My reccomendation would be to download a GUI frontend for iptables, specifically GuardDog. It works great and is very effective.