Error: command ['systemctl', 'status', '--full', 'isc-dhcp-server.service'] failed with exit code 3: ● isc-dhcp-server.service - ISC DHCP IPv4 server
   Loaded: loaded (/lib/systemd/system/isc-dhcp-server.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since mer 2016-09-21 09:02:12 CEST; 9min ago
     Docs: man:dhcpd(8)
 Main PID: 1807 (code=exited, status=1/FAILURE)

set 21 09:02:12 slap sh[1807]: Not configured to listen on any interfaces!
set 21 09:02:12 slap sh[1807]: If you think you have received this message due to a bug rather
set 21 09:02:12 slap sh[1807]: than a configuration issue please read the section on submitting
set 21 09:02:12 slap sh[1807]: bugs on either our web page at www.isc.org or in the README file
set 21 09:02:12 slap sh[1807]: before submitting a bug.  These pages explain the proper
set 21 09:02:12 slap sh[1807]: process and the information we find helpful for debugging..
set 21 09:02:12 slap sh[1807]: exiting.
set 21 09:02:12 slap systemd[1]: isc-dhcp-server.service: Main process exited, code=exited, status=1/FAILURE
set 21 09:02:12 slap systemd[1]: isc-dhcp-server.service: Unit entered failed state.
set 21 09:02:12 slap systemd[1]: isc-dhcp-server.service: Failed with result 'exit-code'.
------
Error: command ['systemctl', 'status', '--full', 'ntp.service'] failed with exit code 3: ● ntp.service - LSB: Start NTP daemon
   Loaded: loaded (/etc/init.d/ntp; generated; vendor preset: enabled)
   Active: failed (Result: exit-code) since mer 2016-09-21 09:02:29 CEST; 9min ago
     Docs: man:systemd-sysv-generator(8)
  Process: 3437 ExecStart=/etc/init.d/ntp start (code=exited, status=5)

set 21 09:02:29 slap systemd[1]: Starting LSB: Start NTP daemon...
set 21 09:02:29 slap systemd[1]: ntp.service: Control process exited, code=exited status=5
set 21 09:02:29 slap systemd[1]: Failed to start LSB: Start NTP daemon.
set 21 09:02:29 slap systemd[1]: ntp.service: Unit entered failed state.
set 21 09:02:29 slap systemd[1]: ntp.service: Failed with result 'exit-code'.
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Error: command ['systemctl', 'status', '--full', 'snapd.refresh.service'] failed with exit code 3: ● snapd.refresh.service - Automatically refresh installed snaps
   Loaded: loaded (/lib/systemd/system/snapd.refresh.service; static; vendor preset: enabled)
   Active: failed (Result: exit-code) since mer 2016-09-21 09:02:08 CEST; 9min ago
     Docs: man:snap(1)
 Main PID: 1120 (code=exited, status=1/FAILURE)

set 21 09:02:08 slap systemd[1]: Starting Automatically refresh installed snaps...
set 21 09:02:08 slap snap[1120]: error: cannot refresh []: Post https://search.apps.ubuntu.com/api/v1/snaps/metadata: dial tcp: lookup search.apps.ubuntu.com: no such host
set 21 09:02:08 slap systemd[1]: snapd.refresh.service: Main process exited, code=exited, status=1/FAILURE
set 21 09:02:08 slap systemd[1]: Failed to start Automatically refresh installed snaps.
set 21 09:02:08 slap systemd[1]: snapd.refresh.service: Unit entered failed state.
set 21 09:02:08 slap systemd[1]: snapd.refresh.service: Failed with result 'exit-code'.