Adding Modules To Your Server - Red Hat LINUX 7.2 Reference Manual

Section 13.4:Adding Modules to Your Server
For more information on SSL directives, please point your browser to http://your_do-
main/manual/mod/mod_ssl/.
http://www.modssl.org/docs/2.7/ssl_reference.html,
mod_ssl by Ralf Engelschall.
http://www.modssl.org/docs/2.7/ and is a great reference source for mod_ssl and for Web cryptogra-
phy in general. This manual provides general information about securing your Web server in Chapter
13, Apache.
Do not modify your SSL directives unless you are absolutely sure about what
you are doing. In most cases, the SSL directives are configured appropriately
as installed.

13.4 Adding Modules to Your Server

Since Apache 1.3 supports DSOs, you can easily load Apache modules or compile in your own mod-
ules to your Web server. DSO support means that modules may be loaded at runtime. Since the
modules are only loaded as necessary, they will not use any memory unless they are loaded and less
memory will be needed overall.
The Apache Group provides complete DSO Documentation at http://httpd.apache.org/docs/dso.html.
After installation of your server, you can also check http://your_domain/manual/mod/ for documenta-
tion on Apache modules in HTML format (if you installed the apache-manual package). A short
description of how to load modules is provided next. If you need more details, check the URLs pro-
vided.
For Apache to use a dynamically shared module, that module must have a LoadModule line and an
AddModule line in httpd.conf. By default, many modules have these two lines already included
in httpd.conf, but a few of the less commonly used modules are commented out. The commented
out modules were included during compilation, but they are not loaded by default.
If you need to use one of those non-loaded modules, look in the httpd.conf file to see all the
available modules. Each of the available modules has a corresponding LoadModule line. To show
you an example, the LoadModule section begins with these seven lines:
#LoadModule mmap_static_module modules/mod_mmap_static.so
LoadModule vhost_alias_module modules/mod_vhost_alias.so
LoadModule env_module
LoadModule config_log_module
LoadModule agent_log_module
LoadModule referer_log_module modules/mod_log_referer.so
More information on SSL directives is also available at
a chapter in a Web document about
The same document, the mod_ssl User Manual, begins at
Note
modules/mod_env.so
modules/mod_log_config.so
modules/mod_log_agent.so
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