On Thu 01 Aug 2019 at 14:09:31 (-0400), Michael Stone wrote: > On Thu, Aug 01, 2019 at 11:11:33AM -0500, David Wright wrote: > > It surprised me that systemd doesn't just use something > > like the gateway address if/when some address is absolutely > > essential. > > Why on earth would it assume that the gateway is running a resolver?
In a domestic environment, it might be a router. If it's a router that's not running a DNS server, it's likely to pass it on to any nameservers the ISP has informed it about. In a professional environment, I'd expect the admin to have correctly configured a resolver at the appropriate time. That's what they're paid for. But in any case, I don't know how the powers that be resolve these things (no pun intended). There was a lot of heat in that discussion. Perhaps lookup failure is the answer. I don't know the circumstances when a resolver is "essential" rather than "very desirable". Cheers, David.