Linux - Slackware

Linux is a computer operating system which is based on free and open source software. Although many different varieties of Linux exist, all are Unix-like and based on the Linux kernel, an operating system kernel first released October 5, 1991 by Linus Torvalds.


http://en.wikipedia.org/wiki/Linux

Slackware is a free and open source Linux-based operating system. It was one of the earliest operating systems to be built on top of the Linux kernel and is the oldest currently being maintained.^[1] Slackware was created by Patrick Volkerding of Slackware Linux, Inc. in 1993. The current stable version is 13.37, released on April 27, 2011.


http://en.wikipedia.org/wiki/Slackware

Dovecot INSTALLATION

INSTALLING DNS, APACHE AND PHP...
to download the video for installing DNS, Apache and PHP, click the link below

http://www.4shared.com/video/8f_QA6FA/installing_DNS_server_Apache_a.html?

SQUIRRELMAIL CONFIGURATION
>before the configuration and after mounting it copy it on the path below
/usr/local/apache/htdocs/
>after copying it, extract it inside .../htdocs/
tar -xzvf squirrelmail.tar.gz
>after extracting it, rename it to mail
mv squirrelmail mail
>then go to mail folder
cd /usr/local/apache/htdocs/mail/

for the configuration, please follow the steps on the video below.