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Old 12-08-2004, 09:24 PM   #1
jonc
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Registered: Dec 2004
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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
 
Old 12-08-2004, 11:18 PM   #2
jlangelier
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Registered: Jun 2003
Location: Denver, CO
Distribution: Debian
Posts: 95

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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.

Last edited by jlangelier; 12-08-2004 at 11:48 PM.
 
Old 12-08-2004, 11:28 PM   #3
Butt-Ugly
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Registered: Nov 2004
Location: Brisbane, Australia
Distribution: Fedora Core 5
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This may also help..

http://www.brennan.id.au/06-Firewall_Concepts.html

BU.
 
Old 12-09-2004, 12:44 AM   #4
scuzzman
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Registered: May 2004
Location: Hilliard, Ohio, USA
Distribution: Slackware, Kubuntu
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My reccomendation would be to download a GUI frontend for iptables, specifically GuardDog. It works great and is very effective.
 
  


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