quick and dirty linux "sysprep"

gistfile1.txt

# remove IP / set IP to one that won't be used for other systems

# clear ssh host key
rm -rf /etc/ssh/ssh_host_*

# remove /etc/hosts entries as applicable

# remove utmp data - wtmp and btmp and lastlog
rm /var/log/{w,b}tmp /var/log/lastlog ; 
  touch /var/log/{w,b}tmp /var/log/lastlog ; 
  chown root.utmp /var/log/{w,b}tmp /var/log/lastlog ; 
  chmod 660 /var/log/btmp ; 
  chmod 664 /var/log/wtmp /var/log/lastlog