Novell LINUX ENTERPRISE SERVER 10 - INSTALLATION AND ADMINISTRATION 11-05-2007 Installation Manual page 780

One major disadvantage is the stability of the worker MPM: if a thread becomes corrupt,
all threads of a process can be affected. In the worst case, this may result in a server
crash. Especially when using the Common Gateway Interface (CGI) with Apache under
heavy load, internal server errors might occur due to threads unable to communicate
with system resources. Another argument against using the worker MPM with Apache
is that not all available Apache modules are thread-safe and thus cannot be used in
conjunction with the worker MPM.
WARNING: Using PHP Modules with MPMs
Not all available PHP modules are thread-safe. Using the worker MPM with
mod_php is strongly discouraged.
40.4.5 External Modules
Find a list of all external modules shipped with SUSE Linux Enterprise Server here.
Find the module's documentation in the listed directory.
mod-apparmor
Adds support to Apache to provide Novell AppArmor confinement to individual
CGI scripts handled by modules like mod_php5 and mod_perl.
Package Name: apache2-mod_apparmor
More Information: Novell AppArmor Administration Guide (↑Novell AppArmor
Administration Guide)
mod_perl
mod_perl enables you to run Perl scripts in an embedded interpreter. The persistent
interpreter embedded in the server avoids the overhead of starting an external inter-
preter and the penalty of Perl start-up time.
Package Name: apache2-mod_perl
Configuration File: /etc/apache2/conf.d/mod_perl.conf
More Information: /usr/share/doc/packages/apache2-mod_perl
mod_php5
PHP is a server-side, cross-platform HTML embedded scripting language.
Package Name: apache2-mod_php5
762 Installation and Administration