On Sun, 2022-06-26 at 16:52 -0400, Greg Wooledge wrote: > Both sections are vague and murky about what happens if you *don't* have > an entry for your hostname in /etc/hosts. > > Fortunately, Debian adds a line exactly like this in /etc/hosts, for > your hostname with your "DNS domain name" (the one you specified during > installation) attached. So you rarely ever have to worry about what > happens if this entry is missing.
That was the problem. The bullseye-only system had an /etc/hosts entry without a FQDN. I removed that and it uses the one in DNS. Thanks for the very thoughtful and detailed insight Greg. -Jim P.
