Added all items from CIS Section 5 Levels 1 & 2

https://benchmarks.cisecurity.org/tools2/ubuntu/CIS_Ubuntu_12.04_LTS_Server_Benchmark_v1.0.0.pdf
Looks like there's a built in util for managing `inetd.conf` if we wanted to move away from using `sed` at some point: http://man.he.net/man8/update-inetd