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34 Conﬁguring Your Secure Web Server

2.5 Adding Modules to Your Server

Since Apache 1.3 supports Dynamic Shared Objects (DSOs), you can eas-

ily load Apache modules or compile in your own modules to your secure

web server. DSO support means that modules may now be loaded at run-

time. Since the modules are only loaded as necessary, they won’t use any

memory unless they’re loaded and less memory will be needed overall.

After installation of your server, check

http://www.yourdomain.com/manual/mod/ for documentation on

Apache modules in HTML format.

Foryoursecurewebservertouseadynamically sharedmodule,that mod-

ule must have a LoadModule line and an AddModule line in

httpd.conf. By default, many modules have these two lines already in-

cluded inhttpd.conf, buta few of the less commonly used modules are

commented out. The commented out modules were compiled in during

compilation, but they are not loaded by default.

Ifyou needto use one of those non-loaded modules, lookinthehttpd.conf

ﬁle to see all the available modules. Each of the available modules has a

correspondingLoadModule line. Toshow youanexample,theLoadModule

section begins with these six lines:

#LoadModule mmap_static_module lib/apache/mod_mmap_static.so

LoadModule env_module lib/apache/mod_env.so

LoadModule config_log_module lib/apache/mod_log_config.so

LoadModule agent_log_module lib/apache/mod_log_agent.so

LoadModule referer_log_module lib/apache/mod_log_referer.so

#LoadModule mime_magic_module lib/apache/mod_mime_magic.so

Most of the lines are not commented out, indicating that each associated

module was compiled in and is loaded in by default. The ﬁrst line is com-

mented out, which means that the corresponding module

(mmap static module) was compiled in but not loaded.

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Red Hat NETWORK PROXY SERVER 3.7 - Manuale Utente Pagina 44