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https://docs.sophos.com/nsg/sophos-firewall/20.0/Help/en-us/webhelp/onlinehelp/index.html?contextId=network-DDNS

Dynamic DNS

Dynamic DNS (DDNS) allows you to access the firewall when it is provisioned with a dynamic IP address.

When the firewall receives a new IP address, it contacts the DDNS service and updates the public DNS name with the new address.

Note

We've discontinued Sophos DDNS. You can't register DDNS domains using myfirewall.co any longer. We recommend configuring a third-party DDNS provider.

We support the following third-party DDNS providers:

  • DynDNS
  • DynAccess
  • easyDNS
  • ZoneEdit
  • Google DDNS
  • Namecheap
  • DNS-O-Matic
  • No-IP
  • FreeDNS
  • Cloudflare

The table below shows the DDNS details in the web admin console.

Column Description
Name The name of the DDNS entry.
Interface The WAN interface associated with the DDNS hostname.
Service provider The DDNS service provider configured for the entry.
Last updated IP The most recent public IP address sent to the DDNS provider.
Last updated status The result of the most recent DDNS update attempt.
Last updated time The time the DDNS entry was last updated.
Failure reason The reason for the most recent update failure, if applicable.
Manage Options to edit or delete the DDNS entry.