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Old 06-04-2006, 10:44 AM   #1
Registered: Dec 2005
Location: Israel
Distribution: used : Ubuntu, Debian, Arch. current : Centos.
Posts: 69

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iptables port 80 rule Q

i want everything that comming in, iptables will DROP
and ACCEPT only things that i told him by rules.
the problem is that my port 80's rules doesnt works and i dont know why.
i cant my site.

those r the rules i made for port 80 :

iptables -A INPUT -p tcp --dport www -j ACCEPT
iptables -A INPUT -p udp --dport www -j ACCEPT
iptables -A INPUT -p --syn --dport www -j ACCEPT
my OUTPUT policy is ACCEPT by the way.

Last edited by doronunu; 06-04-2006 at 10:49 AM.
Old 06-04-2006, 12:48 PM   #2
LQ Guru
Registered: Jan 2003
Location: Seymour, Indiana
Distribution: Distribution: RHEL 5 with Pieces of this and that. Kernel, KDE 3.5.8 and KDE 4.0 beta, Plu
Posts: 5,700

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What is the rest of your iptables script like. What you have should work.
How are you checking?
Have you gone to and external location and tried it?
Some providers block common ports to stop users from running servers.
Goto to see if the port is open.
Is this connected directly to the internet? or a router in between?

Old 06-04-2006, 01:09 PM   #3
Registered: Dec 2005
Location: Israel
Distribution: used : Ubuntu, Debian, Arch. current : Centos.
Posts: 69

Original Poster
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the port is open its on home and i can reach him if the iptables is flush and the policy set to accept.
i have only one more rule for ssh
Old 06-04-2006, 06:55 PM   #4
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Registered: Jan 2006
Distribution: (H)LFS, Gentoo
Posts: 2,450

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What if all you do is flush, set policy to deny and then add the one rule. If it starts working, that means there's something else catching your packets before it can get to the last one.


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