On Tue, Jun 25, 2019 at 09:05:30AM -0400, Greg Wooledge wrote:
Debian's defaults are a bit baffling sometimes. They assumed a mobile device when they decided to put "allow-hotplug" on your wired ethernet interfaces, which breaks everything under the sun on traditional servers or workstations in a work environment.
How? If the interface is in the system then allow-hotplug and auto are synonyms. I have not observed the breakage in hundreds of servers.