Hence, all the domain management activities such as adding the CNAME and updating the MX records should be done via your Open SRS profile.
To edit your domain's preferences, you will have to log in to your Open SRS account.
They associate the TCP/IP address assigned by DHCP to a client with its fully qualified domain name (FQDN).
This association, or mapping, of an IP address to a domain name requires that a change in either the address or the name necessitates an update of the information in DNS.
As you just saw, Windows 2000 clients can have this functionality configured as well, but the difference here lies in the fact that non-Windows 2000 clients cannot update their records with the DNS server themselves, as do Windows 2000 clients.
To configure DHCP for DNS integration, right-click the DHCP server within the management console and choose Properties.
Basically, DDNS, in conjunction with DHCP and Active Directory, can provide secure dynamic updates for your A and PTR records in DNS.The following reasons or events can trigger a dynamic update: When one of these events triggers a dynamic update, the DNS Client service (not the DHCP Client service) sends updates.The DNS Client service performs this function for all network connections on the client, including any that are not configured to use DHCP.Clients running platforms earlier than Windows 2000 do not support dynamic updates and are unable to interact directly with a DNS server like a Windows 2000 client can.When a pre-Windows 2000 client (or a non-Microsoft client) receives an IP address from a DHCP server, the DHCP server can be configured to perform the updates on behalf of these clients.The DHCP protocol does not automatically update DNS in the event that the DHCP server changes the IP address of a client.