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From: "Gáspár Lajos" <swifty@freemail.hu>
To: paddy joesoap <paddyjoesoap@gmail.com>
Cc: netfilter@vger.kernel.org
Subject: Re: comments about local loopback interface rule granularity
Date: Tue, 13 Mar 2012 16:17:58 +0100	[thread overview]
Message-ID: <4F5F6526.2020205@freemail.hu> (raw)
In-Reply-To: <CAMmbHwnH1YSW8vFJu2aoFSnY-vSDRS9KtGdhSe2G=tdyhGgmsg@mail.gmail.com>

Hi,


2012-03-13 15:28 keltezéssel, paddy joesoap írta:
> I often see the following:
>
> iptables -A INPUT -i lo -j ACCEPT
> iptables -A OUTPUT -o lo -j ACCEPT
>
> where a default DROP policy is applied to both INPUT and OUTPUT chains.

Just a side note.

I always use these rules because:
  - I just enable something and deny everything else... (ACCEPT the 
specified and DROP as the policy).
  - I want my local services run "as fas as they can"... (I use the 
rules above as the first rule in the chain. Be aware that you can use 
the rules above in the raw, mangle and filter tables too..)
  - I do not think that there is anything filterable on the "lo" interface.

Swifty

      parent reply	other threads:[~2012-03-13 15:17 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-13 14:28 comments about local loopback interface rule granularity paddy joesoap
2012-03-13 15:06 ` Jan Engelhardt
2012-03-13 15:11 ` /dev/rob0
2012-03-13 15:17 ` Gáspár Lajos [this message]

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