Backing up the DHCP Database onto Another Computer

The DHCP database is backed up at regular intervals, whenever the DHCP service is stopped, and whenever Windows NT is shut down. When the DHCP service restarts, if it detects a corrupt database it restores the database from the backup copy stored in the \DHCP\BACKUP\JET directory. There is no guarantee, however, that database corruption will be detected during backup; it is a good idea to periodically back up the database to another computer.

To back up a DHCP database to another computer

• Use the Replicator service to copy the contents of the DHCP backup directory to the new computer.

If the DHCP server fails to restart because of a database problem, save the existing database to a different location, and then try restoring the database with the copy you saved to another computer. Recent new leases are noted in the Registry but not in the DHCP database; these addresses might be permanently lost from the address range.