I've tried using network-admin. It has a list of DNS servers, including 127.0.0.1 and two that I put in. It always uses the 127 address first, no matter how many times I change it. The lists of files, hook scripts, etc, are confusing: where is the single configuration file for networking that I can modify to effect a permanent change?
I'm tired of asking my ISP's poor quality DNS server to serve my internet requests. I have no idea why Ubuntu repeatedly resets my configuration, or where the graphical interface stores this information -- until it's changed again. This is UNNECESSARILY confusing.
I checked network-admin gui an hour ago and it read, in order, 127.0.1.1 220.127.116.11 18.104.22.168 I moved the two 8.'s to the top, above 127; just checked it, now the first, which wasn't on the list before, is 192.168.1.254 -- which is my network routers lan-side address. Requests to this are routed to the internet; DNS requests here are automatically routed to att's DNS instead of Google's. This is demonstrated when there is a lookup error in FireFox browser it shows an error page from dnserrorassist.att.net
I really would like to have a single, static list of DNS servers, to be able to modify it at my will, and to set the lookup order in which they are used. Can i do that with Ubuntu (16.04)?