# Port Cyber Alliance · CC BY 4.0 · install in /etc/systemd/system/, then: systemctl enable --now pca-blocklist.timer
[Unit]
Description=Pull the Port Cyber Alliance IP blocklist every six hours

[Timer]
OnCalendar=*-*-* 00/6:00:00
RandomizedDelaySec=15min
Persistent=true

[Install]
WantedBy=timers.target