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Re: The problem of iptables on FC4 [message #1655 is a reply to message #1651]

Sun, 19 February 2006 07:21

dev
Messages: 1693
Registered: September 2005
Location: Moscow

Senior Member

I didn't fully got what doesn't work in your case.
First, you have the following rules in your iptables.sh

$IPTABLES -P INPUT DROP
$IPTABLES -P OUTPUT DROP
$IPTABLES -P FORWARD DROP
...
$IPTABLES -A INPUT -p tcp -d 123.456.789.012/32 -j ACCEPT
$IPTABLES -A OUTPUT -p tcp -s 123.456.789.012/32 -j ACCEPT

which means that only 123.456.789.012/32 subnetwork should work fine.

Next, VPS networking requires IP forwarding, so it won't work with this rule:
$IPTABLES -P FORWARD DROP

Also, I would notice, that by default in OVZ kernel conntracks are disabled in host system. This is done so for performance reasons (no double conntracking). But if really needed you can enable it by:
/sbin/modprobe ip_conntrack "ip_conntrack_enable_ve0=1"

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[Message index]

		The problem of iptables on FC4 By: PondRicefied on Sun, 19 February 2006 01:35
		Re: The problem of iptables on FC4 By: dev on Sun, 19 February 2006 07:21
		Re: The problem of iptables on FC4 By: PondRicefied on Sun, 19 February 2006 16:19
		Re: The problem of iptables on FC4 By: dev on Sun, 19 February 2006 19:31
		Re: The problem of iptables on FC4 By: PondRicefied on Sun, 19 February 2006 19:51
		Re: The problem of iptables on FC4 By: dev on Sun, 19 February 2006 20:04
		Re: The problem of iptables on FC4 By: PondRicefied on Sun, 19 February 2006 20:46
		Re: Re: The problem of iptables on FC4 By: dev on Mon, 20 February 2006 07:51
		Re: Re: The problem of iptables on FC4 By: kir on Mon, 20 February 2006 07:59

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