Jul 18 18:15:35 intranet systemd[1]: Starting PostgreSQL Cluster 9.4-main...
Jul 18 18:16:06 intranet postgresql@9.4-main[27610]: The PostgreSQL server failed to start. Please check the log output.
Jul 18 18:16:06 intranet systemd[1]: postgresql@9.4-main.service: Control process exited, code=exited status=1
Jul 18 18:16:06 intranet systemd[1]: Failed to start PostgreSQL Cluster 9.4-main.
Jul 18 18:16:06 intranet systemd[1]: postgresql@9.4-main.service: Unit entered failed state.
Jul 18 18:16:06 intranet systemd[1]: postgresql@9.4-main.service: Failed with result 'exit-code'.

-- Unit postgresql@9.4-main.service has begun starting up.
Jul 18 18:16:06 intranet postgresql@9.4-main[27610]: The PostgreSQL server failed to start. Please check the log output.
Jul 18 18:16:06 intranet systemd[1]: postgresql@9.4-main.service: Control process exited, code=exited status=1
Jul 18 18:16:06 intranet systemd[1]: Failed to start PostgreSQL Cluster 9.4-main.
-- Subject: Unit postgresql@9.4-main.service has failed

● postgresql.service - PostgreSQL RDBMS
   Loaded: loaded (/lib/systemd/system/postgresql.service; enabled; vendor preset: enabled)
   Active: active (exited) since Wed 2018-07-18 17:42:02 CEST; 37min ago
 Main PID: 29934 (code=exited, status=0/SUCCESS)
    Tasks: 0 (limit: 4915)
   CGroup: /system.slice/postgresql.service

Jul 18 17:42:02 intranet systemd[1]: Starting PostgreSQL RDBMS...
Jul 18 17:42:02 intranet systemd[1]: Started PostgreSQL RDBMS.

/usr/lib/postgresql/9.4/bin/postgres -D /var/lib/postgresql/9.4/main -c config_file=/etc/postgresql/9.4/main/postgresql.conf