matrix-docker-ansible-deploy/docs/configuring-playbook-dynamic-dns.md

Dynamic DNS

Setup

Most cloud providers / ISPs will charge you extra for a static IP address. If you're not hosting a highly reliable homeserver you can workaround this via dynamic DNS. To set this up, you'll need to get the username/password from your DNS provider. For google domains, this process is described here. After you've gotten the proper credentials you can add the following config to your inventory/host_vars/matrix.DOMAIN/vars.yml:

matrix_dyanmic_dns_enabled: true
matrix_dynamic_dns_domain_configurations: |
  {{
    [{'provider': 'domains.google.com', 'protocol': 'dyndn2', 'username': 'XXXXXXXXXXXXXXXX', 'password': 'XXXXXXXXXXXXXXXX', 'domain': matrix_domain}]
  }}

Additional Reading

Additional resources:

• https://matrix.org/docs/guides/free-small-matrix-server