Enable Active Directory / LDAP authentication in Apache

If you already have a central directory of users installed (AD or LDAP) you can configure most applications to use that directory instead of a local database for each application and make the user management much easier. Apache supports that so here are instructions on how to password protect a site or location using LDAP directory.

In squeeze, the Apache LDAP module is already installed with the Apache common package. You just need to enable the module and configure.

1. Enable the LDAP module

a2enmod authnz_ldap
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Installing and configuring Trac and Subversion on squeeze

TracTrac is an enhanced wiki and issue tracking system for software development projects. Trac uses a minimalistic approach to web-based software project management.

Trac allows wiki markup in issue descriptions and commit messages, creating links and seamless references between bugs, tasks, changesets, files and wiki pages. A timeline shows all current and past project events in order, making the acquisition of an overview of the project and tracking progress very easy. The roadmap shows the road ahead, listing the upcoming milestones.

Install and configure Trac and subversion

1. Install required packages for both Trac and Subversion. We’ll be using Apache to publish the Subversion repositories

apt-get install python-setuptools trac subversion libapache2-svn libapache2-mod-python
a2enmod dav_fs
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Installing eAccelerator

eAccelerator is a free open-source PHP accelerator & optimizer. It increases the performance of PHP scripts by caching them in their compiled state, so that the overhead of compiling is almost completely eliminated. It also optimizes scripts to speed up their execution. eAccelerator typically reduces server load and increases the speed of your PHP code by 1-10 times.

eAccelerator only works with mod_php or php in fastcgi mode. It can’t be used in cgi or cli because eAccelerator needs to set up shared memory, and this can only be done when all php instances that need to access it are forks of the first process.

1. Download the eAccelerator source. The latest version is mirrored on www.debiantutorials.com as it’s not available on the official site anymore.

cd /tmp
wget http://www.debiantutorials.com/static/eaccelerator-0.9.6.1.tar.bz2
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OpenID authentication with the mod_auth_openid Apache module

mod_auth_openid is an authentication module for the Apache 2 webserver. It handles the functions of an OpenID consumer as specified in the OpenID 2.0 specification.

After a user authenticates themselves, the user’s identity will be available in the REMOTE_USER variable. A cookie named open_id_session_id is saved to maintain each user’s session.

1. Install the module

apt-get install libapache2-mod-auth-openid
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Install mod_spamhaus Apache module to fight comment spam

mod_spamhaus is an Apache module for DNS Block Listing that protects web services by denying access to particular IP addresses. It can stop spam relaying via web form URL injection, and block HTTP DDoS attacks from bot-nets.

It queries sbl-xbl.spamhaus.org, taking advantage of the Spamhaus Block List (SBL) and the Exploits Block List (XBL).

1. Download the latest mod_spamhaus deb package from sid package repository (mod_spamhaus is not available for lenny but we can use the sid package)

wget http://ftp.us.debian.org/debian/pool/main/m/mod-spamhaus/libapache2-mod-spamhaus_0.7-1_i386.deb
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