I can't get journalctl to log httpd logs and other daemons. Checking with `journalctl -F _SYSTEMD_UNIT, only these units are listed
dbus.service transmission.service acpid.service named.service dcron.service postfix.service slim.service
How to add other systemd units to journal service? I still have their logs in /var/log but journalctl looks prettier than output from tail -f.