[ubuntu] improve iptables instructions
[ubuntu] improve netstat instructions
[ubuntu] add scan section
[ubuntu] enable use of community/universe packages

this will be required to use rkhunter, chkrootkit, and lynis
[ubuntu] adds rkhunter
[ubuntu] adds chkrootkit
[ubuntu] adds lynis
[ubuntu] update passwords
[ubuntu] find unauthorized files

for example music files in /home
[ubuntu] adds section to remove programs

via ubuntu software center
[ubuntu] check hosts file
[ubuntu] rename section to Installation Check
[ubuntu] adds how to edit a file

multiple options: gedit, nano, vi/vim
[ubuntu] adds auditd
[ubuntu] disable guest access
[ubuntu] password policy

libpam-cracklib, complex chars, min len 8, last 5 remember
[ubuntu] account lockout policy
[ubuntu] added sudo configuration