127.0.0.1 test
127.0.0.2 test2.example.com 2.test
127.0.0.3 3.test test3.example.com
127.0.0.4 example.com
127.0.0.5 test4.example.com 4.test 5.test test5.example.com

# must be a non resolvable domain on the internet
127.0.1.1 invalid.test invalid.invalid