Originally Posted by Polytonic

For the file you edited, you're likely referring to the hosts file

Originally Posted by StuckInYYZ

I'm assuming you mean the hosts file.

Originally Posted by Polytonic

[...]resolution occurs as follows:

1) hosts file (if any entries apply for the current query, otherwise fallback to local DNS server)
2) local DNS server (if set on your computer's network interface, otherwise fallback to router DNS server)
3) local network DNS server (if set in your router configuration, otherwise fallback to your ISP's DNS server)