This article explains how you can install and configure apache2-mpm-peruser on a Debian Etch server. apache2-mpm-peruser is an MPM (Multi-Processing Module) for the Apache 2 web server, very similar to apache2-mpm-itk, but faster (almost as fast as apache2-mpm-prefork). mpm-peruser allows you to run each of your vhosts under a separate UID and GID - in short, the scripts and configuration files for one vhost no longer have to be readable for all the other vhosts. It is based on metuxmpm, a working implementation of the perchild MPM. The result is a sane and secure web server environment for your users, without kludges like PHP's safe_mode.

Recentemente ho realizzato un How To su come sfruttare il programma OpenSSL per realizzare un'infrastruttura PKI (Public Key Infrastructure) con cui generare i certificati digitali per poter consentire ad una persona di firmare e criptare digitalmente i propri messaggi email, accedere in modo sicuro (via SSL) alla propria casella di posta elettronica ed alla Webmail (utilizzando Postfix, Courier e SquirrelMail)