How do I go about doing that? (I don't know the linux system very well)
You don't need to log into the system as root with SSH if you don't feel like it, you can add the W:127.0.0.1 value in
the Cgminer Configuration tab, the bottom field "API Allow"
If you want to do it by hand, then log into the system with SSH as user root, go to /etc/config/
and edit the file cgminer by adding at the end of the file:
option api_allow 'W:127.0.0.1'
if you restart cgminer it should pick up the new config values
Check the wiki for instructions
If you are not familiar, you'll have plenty of fun trying to master vi first though ;-)