From mboxrd@z Thu Jan 1 00:00:00 1970 From: "J. Bakshi" Subject: Re: How to protect apache benchmarking attack ? Date: Tue, 12 Jan 2010 15:10:25 +0530 Message-ID: <4B4C4389.6010604@infoservices.in> References: <4B4C3F37.9010703@infoservices.in> <20100112102848.4b427416@catlap> Mime-Version: 1.0 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <20100112102848.4b427416@catlap> Sender: netfilter-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="utf-8" To: Marek Kierdelewicz Cc: netfilter@vger.kernel.org Marek Kierdelewicz wrote: >> Hello all, >> =20 > > Hello J., > > =20 >> I am dared to see what "ab" (apache benchmarking too) can do agains= t >> an apache server. I have used the following against my server to ch= eck >> call handling >> =20 > > You can use hashlimit [1] match of iptables to limit concurrent > connections from single IP. > > [1] http://linux.die.net/man/8/iptables -> lookup hashlimit; note: > current versions of hashlimit can also use srcip as --hashlimit-mode; > that's probably what you want > > Cheers, > Marek Kierdelewicz > > =20 Hello Marek, thanks for your prompt reply. I'll look into the hashlimit as you suggest. Though a question in mind. Can It somehow affect the web access from general users. ? I need the protection but also don't lik= e my protection makes the web service block general users somehow :-) Any real-life configuration is always Welcome. Thanks --=20 =E0=A6=9C=E0=A7=9F=E0=A6=A6=E0=A7=80=E0=A6=AA =E0=A6=AC=E0=A6=95=E0=A7=8D= =E0=A6=B8=E0=A7=80