● dnsmasq.service - dnsmasq - A lightweight DHCP and caching DNS server
   Loaded: loaded (/lib/systemd/system/dnsmasq.service; enabled)
  Drop-In: /run/systemd/generator/dnsmasq.service.d
           └─50-dnsmasq-$named.conf, 50-insserv.conf-$named.conf
   Active: failed (Result: exit-code) since Thu 2017-10-26 19:01:32 CEST; 5s ago
  Process: 809 ExecStop=/etc/init.d/dnsmasq systemd-stop-resolvconf (code=exited, status=0/SUCCESS)
  Process: 794 ExecStartPost=/etc/init.d/dnsmasq systemd-start-resolvconf (code=exited, status=0/SUCCESS)
  Process: 835 ExecStart=/etc/init.d/dnsmasq systemd-exec (code=exited, status=2)
  Process: 832 ExecStartPre=/usr/sbin/dnsmasq --test (code=exited, status=0/SUCCESS)
 Main PID: 793 (code=exited, status=0/SUCCESS)

Oct 26 19:01:32 LINUX_LOVE dnsmasq[832]: dnsmasq: syntax check OK.
Oct 26 19:01:32 LINUX_LOVE dnsmasq[835]: dnsmasq: failed to bind DHCP server socket: Address already in use
Oct 26 19:01:32 LINUX_LOVE dnsmasq[835]: failed to bind DHCP server socket: Address already in use
Oct 26 19:01:32 LINUX_LOVE dnsmasq[835]: FAILED to start up
Oct 26 19:01:32 LINUX_LOVE systemd[1]: dnsmasq.service: control process exited, code=exited status=2
Oct 26 19:01:32 LINUX_LOVE systemd[1]: Failed to start dnsmasq - A lightweight DHCP and caching DNS server.
Oct 26 19:01:32 LINUX_LOVE systemd[1]: Unit dnsmasq.service entered failed state.