Apache

Installation

Dependencies

Apache does not have any dependencies, as of version 2.2.x.

Configure

I have configured Apache 2.0.63, 2.2.11, 2.2.15, and 2.2.16 using this configure line (or something similar):

./configure \
 --prefix=/path/to/apache \
 --with-included-apr \
 --enable-mods-shared="all ssl cache proxy authn_alias mem_cache file_cache charset_lite dav_lock disk_cache mod_dav mod_dav_svn"

The long list of "mods-shared" is to enable shared modules to be built, for a variety of different things (e.g. mod_dav_svn allows for the apache server to serve as an SVN repository server. Go here for more information: http://httpd.apache.org/docs/2.0/mod/

httpd.conf Configuration File

The httpd.conf file contains directives used by Apache to determine various options, such as the location of the documents that are made public by the web server, which modules to include (e.g. PHP), the port(s) Apache will listen to, etc.

VirtualHosts http://httpd.apache.org/docs/2.0/vhosts/examples.html

Modules

PHP Module

When you install PHP, you can point configure to a build of Apache. When you type make and make install, it will modify your Apache httpd.conf configuration file to add the appropriate PHP module.

Once the PHP module has been added to the Apache configuration file, you will also have to add a few other things to your httpd.conf:

AddHandler php5-script php  # <-- This line should be added automatically by PHP

# PHP module settings:
<IfModule php5_module>

    # Add php type handler
    AddType text/html       php

    # Make index.php a default file
    <IfModule dir_module>
        DirectoryIndex index.html index.php
    </IfModule>
</IfModule>

SVN Module

The Apache SVN module creates a way for an SVN server to serve an SVN repository through an Apache server.

Enabling/installing/configuring this module is covered by the RedBean SVN book http://svnbook.red-bean.com/en/1.0/ch06s04.html. It requires two modules to be loaded, mod_dav and mod_dav_svn, both enabled in the Apache httpd.conf configuration file. The guide is extremely extensive, so you should refer to it to get Apache set up with SVN.

Once you do, you can check out code from an svn repository by executing the command:

$ svn checkout http://www.yoursite.com/svn/repository_name local_directory/

SSL Module

SSL, secure socket layer, provides a secure way of communicating private information between a client, using their web browser, and the web server, running Apache.

To create secure Apache web sites, which are prefixed with https://, you can use the mod_ssl module, documented here: http://httpd.apache.org/docs/2.0/ssl/

In order to use mod_ssl, you need to install OpenSSL and configure with the arguments --enable-ssl --with-ssl=/path/to/open/ssl. You can set a whole bunch of different options, documented here: http://www.openssl.org/

You will need to sign your own certificate, since a signed SSL certificate will set you back a couple thousand dollars a year. This will cause all users using the Apache SSL webpage to see a warning, but that's a small price to pay, compared with the cost of a signed SSL certificate.

Other Interesting Apache Modules

One-Time Password Authentication Module	https://code.google.com/p/mod-authn-otp/
Perl Apache module	http://perl.apache.org/
Lisp Apache module	http://www.fractalconcept.com/asp/Nge/sdataQIS9RqLLzSS9DM==/sdataQuvY9x3g$ecX