Dhcp server is not updating dns records
Also, you cannot directly migrate to an Active Directory-integrated zone when you manually copy the zone data files; Active Directory-integrated zones do not use the standard zone data files that you can copy from one location to another.
See Understanding The Domain Name Structure The DNS system consists of many Domain Name servers that together provide the name to IP address mapping for registered devices (usually servers) on the Internet.Uptown DC will be the primary DNS server for and for a 192.168.0.x reverse-lookup zone, and it will be the secondary DNS server for a 10.0.0.x reverse-lookup zone.Downtown DC will be a secondary DNS server for and for the 192.168.0.x reverse-lookup zone, and it will be the primary DNS server for the 10.0.0.x reverse-lookup zone.Technically, even though Active Directory used to be able to use other DNS services to operate, using Windows Server's built-in DNS services to provide the best overall integration capabilities and results in fewer issues.If you're running an older version of Windows DNS services or some other DNS service on your network and you want to deploy Active Directory, migrating to Windows Server 2008's DNS services should be the first step in your plans.This enabled people to refer to other computers by the name, and their computer translated that name to an IP address when it needed to communicate with it. It comes with all Windows machines The location for the hosts file is normally C\windows\system32\drivers\etc As network sizes increased the hosts file approach became impractical due to the fact that: The hosts file is simply a list of names and IP addresses with no structure making it difficult to scale to a large number of machines.
The solution is to place the machines into administrative areas known as domains, and arrange the domains in a hierarchy.
In past Inside Out columns, I've shown you how to use simple batch files to set up just-installed systems as domain controllers (DCs) and to create disaster-recovery tools.
I've also shown you how to use Netsh to configure and fine-tune your IP stack—the first step toward making a Windows Server 2003 or Windows 2000 server ready to ascend to DC status.
VPN clients connect to the ISA Server firewall/VPN server with the goal of accessing resources on the internal network.
VPN clients will not be able to access these resources using a DNS host name if the client cannot properly resolve that name to an IP address.
However, that DNS server address does not resolve names on the corporate network because that DNS server is intended to resolve names on the network the VPN client computer is attached to before connecting to the ISA firewall/VPN server, or to resolve only Internet host names.