====== Gestión de servicios ======

===== Viewing systemd information =====

  * ''systemctl list-dependencies'' Show a unit’s dependencies
  * ''systemctl list-sockets'' List sockets and what activates
  * ''systemctl list-jobs'' View active systemd jobs
  * ''systemctl list-unit-files'' See unit files and their states
  * ''systemctl list-units'' Show if units are loaded/active
  * ''systemctl get-default'' List default target (like run level)

===== Working with services =====

  * ''systemctl stop service'' Stop a running service
  * ''systemctl start service'' Start a service
  * ''systemctl restart service'' Restart a running service
  * ''systemctl reload service'' Reload all config files in service
  * ''systemctl daemon-reload'' Must run to reload changed unit files
  * ''systemctl status service'' See if service is running/enabled
  * ''systemctl --failed'' Shows services that failed to run
  * ''systemctl reset-failed'' Resets any units from failed state
  * ''systemctl enable service'' Enable a service to start on boot
  * ''systemctl disable service'' Disable service--won’t start at boot
  * ''systemctl show service'' Show properties of a service (or other unit)
  * ''systemctl edit service'' Create snippit to drop in unit file
  * ''systemctl edit --full service'' Edit entire unit file for service
  * ''systemctl -H host status network'' Run any systemctl command remotely

===== Changing system states =====

  * ''systemctl reboot'' Reboot the system (reboot.target)
  * ''systemctl poweroff'' Power off the system (poweroff.target)
  * ''systemctl emergency'' Put in emergency mode (emergency.target)
  * ''systemctl default'' Back to default target (multi-user.target)

===== Viewing log messages =====

  * ''journalctl'' Show all collected log messages
  * ''journalctl -u'' network.service See network service messages
  * ''journalctl -f'' Follow messages as they appear
  * ''journalctl -k'' Show only kernel messages