# revert back to DHCP assigned DNS Servers Networksetup -setdnsservers $adapter $vpndns #!/bin/bashĪdapters=`networksetup -listallnetworkservices |grep -v denotes`ĭnssvr=(`networksetup -getdnsservers $adapter`) This script specifies or clears (sets back to DHCP default) the DNS servers on each of the adapters listed in networksetup. Move along :) But if you rely on DHCP assigned DNS servers, the the script below will do the trick. If you use public network servers like 8.8.8.8 or 4.2.2.2, you’re already set. The usual route of using /etc/nf does not work on OS X but specifying DNS servers in your Network Preferences does. It’s been recommended to use scutil, but the scripts are crazy long and I’ve read the resolver order sometimes gets reset anyway. For whatever reason, even if use DHCP on the VPN server, OS X won’t use the assigned DNS server(s). There’s a bit of a debate on how best to update your DNS resolver on Mac OS X when connecting to an OpenVPN Server.
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