On Tue, Apr 11, 2023 at 01:09:37PM -0400, gene heskett wrote: > Keeping networking working on linux has been an art, not a science. > looking at one of my buster machines. /etc/network/interfaces has this: > ==== > # The primary network interface > allow-hotplug eno1 > iface eno1 inet static > address 192.168.71.10/24 > gateway 192.168.71.1 > # dns-* options are implemented by the resolvconf package, if installed > dns-nameservers 192.168.71.1 > dns-search coyote.den > ==== > And it Just Works.
The last two lines of that file are configuration elements for the resolvconf package. They only take effect if resolvconf is installed. > But that was way the hell and gone too easy, so it just > had to be changed, so that stuff no longer works for bullseye. Most likely, your bullseye system simply doesn't have resolvconf. This is discussed at <https://wiki.debian.org/resolv.conf#Configuring_openresolv_or_resolvconf>. The comment right before them also tells you which package you need for those lines to work.