When a Configuration Manager 2007 site is configured to use fully qualified domain names (FQDNs), you must ensure that these are configured in DNS as host entries (A records for IPv4 addresses, or AAA records for IPv6).
To ensure DNS is configured with the appropriate entries, follow this guidance.
To configure DNS for Configuration Manager site system roles
On your intranet DNS servers, ensure you have A records (for IPv4 addresses) or AAA records (for IPv6 addresses) for all the intranet FQDNs specified in Configuration Manager. These might be entered manually, or if you are using the same DNS name as the server name, the records might be automatically registered. These DNS entries must be configured with the intranet IP addresses of your site systems on the intranet.
If the site is configured for Internet-based client management, public Internet DNS servers must also be configured. Ensure that public Internet DNS servers have A records (for IPv4 addresses) or AAA records (for IPv6 addresses) for all the Internet FQDNs specified in Configuration Manager. These DNS entries must be configured with the public Internet IP addresses of your Internet-based site servers.
TasksHow to Automatically Publish the Default Management Point to DNS
How to Configure the Internet FQDN of Site Systems that Support Internet-Based Client Management
How to Configure the Intranet FQDN of Site Systems
How to Manually Publish the Default Management Point to DNS