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List all running systemd services

harmlesssystemddebian, ubuntu
user@server
systemctl list-units --type=service --state=running --no-pager

Shows all currently running service units with a short description. Useful when taking over an unfamiliar server or during a security review, to spot unexpected services. --state=failed or --state=exited filters for other states.

Also searched as

  • which services are running
  • show running services
  • what is running on the server
  • list all active services

Related one-liners

All in systemd

List all services enabled at boot

$systemctl list-unit-files --type=service --state=enabled --no-pager
harmlesssystemd

Query uptime, memory and restart count of a service

$systemctl show php8.2-fpm -p ActiveState,ActiveEnterTimestamp,MainPID,MemoryCurrent,NRestarts
harmlesssystemd

Restart a service and check the result

#systemctl restart php8.2-fpm && systemctl is-active php8.2-fpm
cautionsystemd

Show the full status of a systemd service

$systemctl status nginx --no-pager -l
harmlesssystemd

Change service settings with an override

#systemctl edit mariadb
cautionsystemd

Enable a service and start it immediately

#systemctl enable --now fail2ban
cautionsystemd

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