Primary DNS Server: 18.104.22.168
If you choose to browse using the OpenDNS DNS servers, you can test the correct configuration of your Mac by logging in to this address. If the page that pops up you see abig orange checkmark (√) associated with the message “Welcome to OpenDNS!, everything went right.
Otherwise, try again the procedure to change the DNS and disable/re-enable your Internet connection.
If you choose Google DNS or other servers, you can verify the configuration of your Mac by opening a Terminal and typing nslookup commands sequentially and servers. The primaryand secondary DNS server set up on your computer will be displayed in the Default server.