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.