For example, this would set OpenDNS for the first two DNS servers, and Google DNS as the third fallback: You can set multiple DNS servers if desired, which will enable fallback in the event the first or second server is unreachable. Networksetup -setdnsservers Wi-Fi 8.8.8.8 Networksetup -setdnsservers (Network Service) (DNS IP)įor example, to set a Mac with wi-fi to Google DNS of 8.8.8.8 the syntax would be: You’ll use the -setdnsservers flag, point it at the network service, and then include the DNS IP, this may look like the following: The networksetup command is available in all vaguely modern versions of Mac system software. How to Set DNS Servers from the Command Line of OS X with networksetup ![]() ![]() While networksetup has many advanced and complex uses, setting DNS is actually quite easy. To change DNS settings from the command line of OS X, you’ll be using the ever-useful ‘networksetup’ command.
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