----RAID---
http://www.iprobot.net/linux-tutorial/how-to-setup-sofware-raid-in-freebsd/
----APACHE, BASE DE DATOS Y NAGIOS---
http://www.xfiles.dk/guide-on-how-to-install-nagios-on-freebsd/
---SQUID---
http://blog.up-link.ro/how-to-install-and-configure-squid-as-transparent-proxy-server-under-linux-and-freebsd/comment-page-1/