---
firewall_in:
  - {proto: tcp, port: 22, from: [172.20.20.0/22]}
  - {proto: tcp, port: 9100, from: [172.20.20.0/22]}
chrony_servers:
  - time1.google.com
  - time2.google.com
  - time3.google.com
  - time4.google.com