Error: command ['systemctl', 'status', '--full', 'miredo.service'] failed with exit code 3: ● miredo.service - Teredo IPv6 tunneling
   Loaded: loaded (/lib/systemd/system/miredo.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Thu 2019-04-18 19:06:25 CEST; 18min ago
  Process: 1865 ExecStartPre=/usr/sbin/miredo-checkconf -f /etc/miredo/miredo.conf (code=exited, status=255)

apr 18 19:06:25 zagar systemd[1]: Starting Teredo IPv6 tunneling...
apr 18 19:06:25 zagar miredo-checkconf[1865]: Invalid host name “teredo.trex.fi” at line 7: No address associated with hostname
apr 18 19:06:25 zagar miredo-checkconf[1865]: Server address not specified
apr 18 19:06:25 zagar miredo-checkconf[1865]: Fatal configuration error
apr 18 19:06:25 zagar systemd[1]: miredo.service: Control process exited, code=exited status=255
apr 18 19:06:25 zagar systemd[1]: miredo.service: Failed with result 'exit-code'.
apr 18 19:06:25 zagar systemd[1]: Failed to start Teredo IPv6 tunneling.