Be focused on technoligies itself instead of different tools.
do the things really matters first.
linux acting as a router, support vlan, both using vconfig and nmcli tools.
set up DNS using unbound instead of bind, also fultil DDNS.
set up zabbix : done 2016/04/03
vnc/reverse vnc
5. forwrad 127.0.0.1 port traffic to outside ip. nagix
cobbler
.hadoop : reuse desktop to build a shared storage
configure wifi to bypass GFW and allow client silent
pxe ubuntu
nagios
puppet/saltstack/ansible