This option specifies the DynDNS server transport mode, either http or https.
NOTE on https transports: CDRouter includes a self-signed certificate for members.dyndns.org. For security reasons, CDRouter cannot include the real certificate used by dyndns.org. Some DynDNS clients will not establish an https connection with CDRouter’s built in DynDNS server since the client is unable to fully verify the server certificate. To work around this, you may install the CA certificate used to create CDRouter’s server certificate. A second work around is to disable full certificate verification on the DynDNS client.