.localhost will be dropped as DHCP search domain by systemd-networkd, see https://github.com/systemd/systemd/issues/2258 https://github.com/systemd/systemd/issu

.localhost will be dropped as DHCP search domain by systemd-networkd, see https://github.com/systemd/systemd/issues/2258 https://github.com/systemd/systemd/issues/2258 Not sure if that is important for the use-case at hand, but it was the reason why I stopped using .localhost in my LAN (in favor of just using plain hostnames, e.g. “x1”).