From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?B?QXJ0xatyYXMgxaBsYWp1cw==?= Subject: Re: (Ab)using iptables to record byte count per IP? Date: Fri, 09 Jan 2009 13:50:43 +0200 Message-ID: <49673A13.6050807@arturaz.net> References: <2d460de70901090327y625afd60g792467e843d3f1d@mail.gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <2d460de70901090327y625afd60g792467e843d3f1d@mail.gmail.com> Sender: netfilter-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: Richard Hartmann Cc: netfilter@vger.kernel.org Richard Hartmann wrote: > Hi all, > > I need to log the traffic each local IP in a NAT'ed network generates > per day. > > Unfortunately, the environment is rather restricted and compiling new > software is not an option. Thus, I am wondering if I can abuse iptables, > which is in use anyway, to log for me, as well. > > The end result should be a log which contains IP, date and traffic > generated. I don't really care about the output format as I will perl it > into the format I need, anyway. iptables -N ACCOUNTING iptables -A FORWARD -j ACCOUNTING iptables -A ACCOUNTING -s your_user_ip -j ACCEPT iptables -A ACCOUNTING -d your_user_ip -j ACCEPT bam, with iptables -L ACCOUNTING -n -v you can have packet/byte counters ;)