apt-cache search apache2 mpm

apache2-common – next generation, scalable, extendable web server
apache2-mpm-perchild – experimental high speed perchild threaded model for Apache2
apache2-mpm-prefork – traditional model for Apache2
apache2-mpm-worker – high speed threaded model for Apache2
libapache2-mod-php4 – server-side, HTML-embedded scripting language (apache 2.0 module)
libapache2-mod-php5 – server-side, HTML-embedded scripting language (apache 2.0 module)

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