一个奇怪的问题，我在互联网上的其他任何地方都没有发现，暗示这可能是我搞砸了，但是什么？
尝试启动dnsmasq.service，无论是在启动时还是从用户会话中，当所有网络服务都可用并正常工作时，都会失败并显示unknown interface enp2s0错误......除了系统的整个其余部分都声称它已启动。
andrzej@andrzej-PC ~ $ sudo systemctl start dnsmasq
Job for dnsmasq.service failed because the control process exited with
error code. See "systemctl status dnsmasq.service" and "journalctl -xe" for details.
andrzej@andrzej-PC ~ $ systemctl status dnsmasq
? dnsmasq.service - dnsmasq - A lightweight DHCP and caching DNS server
Loaded: loaded (/lib/systemd/system/dnsmasq.service; disabled; vendor preset:
Drop-In: /run/systemd/generator/dnsmasq.service.d
??50-dnsmasq-$named.conf, 50-insserv.conf-$named.conf
Active: failed (Result: exit-code) since Mon 2017-07-10 02:09:41 CEST; 3s ago
Process: 5551 ExecStart=/etc/init.d/dnsmasq systemd-exec (code=exited, …