Managing SystemD

systemd_info.sh

# CentoOS 7 - Systemctl
# https://www.digitalocean.com/community/tutorials/how-to-use-systemctl-to-manage-systemd-services-and-units
# https://www.digitalocean.com/community/tutorials/understanding-systemd-units-and-unit-files

# Enabled user space units
/etc/systemd/system/multi-user.target.wants/varnish.service

# System library of available units
/usr/lib/systemd/system/varnish.service

# override system unit
systemctl edit varnish

systemctl start varnish
systemctl status varnish



# --- Monitoring / Debugging
# see the status of all varnish units managed by systemctl
systemctl list-unit-files
systemctl list-unit-files | grep "varnish"

# find default target
systemctl get-default

# watch the systemctl journel for any varnish service activity or error messages
journalctl -f -u varnish