Edward wrote:
I was under the impression that such settings (which I have seen in other distros) were independent of whatever is in the system's resolv.conf file. Is there a way of permanently saving the other DNS addresses? The ISP's gateway software has their DNS addresses 'grayed out' (for lack of a better term) and they cannot be changed in the gateway. Cloudflare's DNS service has a faster response time than the ISP's, from here.
the resolv.conf is a symlink if you use a subsystem to handle the DNS entries (network manager or dhclient)
you either put your setting in the subsystem of choice or remove the symlink and create a static file. The last option will probably couse troubles with some of these subsystems.