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From: Ted Kaczmarek <tedkaz@optonline.net>
To: "Knight, Steve" <Steve.Knight@bskyb.com>
Cc: netfilter@lists.netfilter.org
Subject: Re: first time set up
Date: Thu, 30 Oct 2003 07:04:11 -0500	[thread overview]
Message-ID: <1067515451.27238.3.camel@tarkus> (raw)
In-Reply-To: <FDB52A0429DFD31196FB0008C7D972D50EA57901@OST_EXCH_USR5>

Any particular reason you want default output drop?
That is a lot of overhead unless the box is only a dns server
than your train of thought is ok.

Also you need 

iptables -A INPUT -p udp -m udp --dport 53 -j ACCEPT

you could specify as well the interface like so
-A INPUT -i eth0 -p udp -m udp --dport 53 -j ACCEPT

Ted



On Thu, 2003-10-30 at 06:50, Knight, Steve wrote:
> Hi there ---
> 
> Once I've got the normal stuff in place on a test standalone box [default
> drop, accept related + established on tcp, loopback enabled]
> 
> iptables -A OUTPUT -p udp -s $LOCALIP -d $DNS1 --dport 53 -j ACCEPT
> 
> Shouldn't this be enough to allow standard dns resolution to take place?
> According to Ziegler, it should?
> 
> Or am I a complete plum.
> 
> Any pointers as to my plumness gratefully received.  Thanks :)
> 
> steve
> 
> 
> 
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Ted Kaczmarek<tedkaz@optonline.net>
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  reply	other threads:[~2003-10-30 12:04 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-10-30 11:50 first time set up Knight, Steve
2003-10-30 12:04 ` Ted Kaczmarek [this message]
  -- strict thread matches above, loose matches on Subject: below --
2003-10-30 12:32 Knight, Steve

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