1.Complete Guide to Firefox in Ubuntu | TuxArena Debian/Ubuntu
http://www.tuxarena.com/static/tut_firefox_ubuntu.php
2.OWASP livecd 2011
http://appseclive.org/apt/downloads/
3.Postfix
(1.)Postfix mysql postfixadmin dovecot roundcube centos 5.5
http://kdn2.info/2010/11/postfx-postfixadmin-dovecot-roundcube-centos/
(2.)Building Postfix 2.8 on RHEL5 / CentOS 5 from Source
http://stevejenkins.com/blog/2011/01/building-postfix-2-8-on-rhel5-centos-5-from-source/
(3.)Install Postfix with Dovecot on CentOS - (mt) Community Wiki
http://wiki.mediatemple.net/w/(ve):Install_Postfix_with_Dovecot_on_CentOS
(4.)Install Postfix on Ubuntu - (mt) Community Wiki
http://wiki.mediatemple.net/w/(ve):Install_Postfix_on_Ubuntu
4.netsniff-ng - the packet sniffing beast
http://netsniff-ng.org/