Upgrade to 20.04.1 no internet

[Paul Smith]

On Sat, 2020-10-03 at 11:55 -0500, Chris wrote:
> Prior to the upgrade Bind9 has been running with no issues for years
> through various LTS upgrades now on this one seems like lots of
> things are borked.

Sorry I haven't been following closely but if you're coming from an
earlier LTS release then yes, there have been significant changes
related to DNS in Ubuntu 20.04 compared to 18.04.

Mainly this is related to the adoption of systemd-resolve.

Do you really need bind9?  If all you need is caching DNS for your
local system itself you can drop bind9 and just use the default Ubuntu
setup which already has DNS caching available by default.

If you really want bind specifically you'll need to do some
customization on your system to avoid conflicts.