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Apache2 with modsecurity as MS Exchange OWA proxy

The intention for this short howto was to use the power of modsecurity to secure a Apache2 running as proxy for an MS Exchange OWA on wild wild web. The system described below is based on a debian lenny machine. Let’s start with editing the sources.list to get the latest version of modsecurity module. Simply add this line: deb http://etc.inittab.org/~agi/debian/libapache-mod-security2 ./ and install the stuff. aptitude install libapache-mod-security apache2-mpm-worker Now I’ve disabled all sites and modules not needed and enable the new modules: Read more →