Configure the firewall to use a DDNS service to update
your changing domain name-to-IP address mappings so it provides accurate
IP address resolutions to its clients.
Before you configure
DDNS for
a firewall interface:
- Determine the hostname that you
registered with your DDNS provider.
- Obtain the public SSL certificate from the DDNS service and
import it in to the firewall.
- (If you use FreeDNS Afraid.org v1 or FreeDNS Afraid.org Dynamic
API v1) On the DDNS server, the Dynamic DNS service tab includes
the following option: Link updates of the same IP together? When
this option is enabled, the DDNS service updates all hostnames in
DNS records that contain the old IP address that is changing, not just the
DNS record for a single hostname and IP address. To avoid updating
DNS records of hosts you didn’t intend to update, you should disable
the Link updates of the same IP together? option so
that the DDNS server updates only the DNS record that contains the
specific hostname with the new IP address that is in the DDNS update.