If you thought configuring DNS in the first place was difficult, you’ll find the backup and recovery procedures refreshingly simple. There are two locations in the Registry to back up the DNS service and one directory on the physical filesystem.
The following procedure won’t work with Active Directory-integrated zones, as the zone files are within the directory service and are not available on the filesystem.
Do as follows:
On the nameserver, stop the DNS service using the Services applet in the Control Panel or through the command-line.
Open the Registry Editor (select StartRun, type
regedit, and press Enter).
Navigate to the
Right-click the DNS folder, and from the context menu, choose Export.
When prompted for a filename, enter
and choose an appropriate location that is off the server.
Now, navigate to the
NT\CurrentVersion\DNS server key.
Right-click the DNS Server folder, and from the context menu, choose Export.
Name this file
DNS-CV, and again choose a
location that is not on the current server. These two files will be
Now, using Windows Explorer, navigate to the
%SystemRoot%\System32\dns directory on the boot
Find all files with the
.DNS extension, select
them, and then copy them to the same location that you exported
Your DNS service is now completely backed up. Restart the DNS service to continue using it.
To restore a set of DNS configuration
files, install a Windows Server 2003 machine and use the same
computer name, DNS suffix, and IP address. Be sure to install the DNS
service. Then, copy all of the
.DNS files from
your backup to the
directory, and stop the DNS service. Double-click
DNS-CCS.REG and confirm that you want its
contents imported into the registry; do the same for
DNS-CV.REG. Finally, restart the DNS service,
and your replacement server should function normally.