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_dynamic_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