How DHCP server works in Windows Network

DHCP server uses database file named dhcp.mdb stored in C:windowssystem32dhcp folder. A backup copy the DB in the C:windowssystem32dhcpbackup folder by default. During service startup, If the original DB file is not found the service loads the DB from backup folder DHCP service writes to the registry whenever a dhcp lease is handed out to clients The Registry path is HKEY_LOCAL_MACHINESOFTWAREMicrosoftDhcpServerConfiguration During proper service shutdown, it takes backup copies of both dhcp.mdb and Registry The backup information of Registry is stored in Dhcpcfg file in DHCP DB folder Whenever a successful lease is released, it first writes the details to […]

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How to Restore a Corrupted DHCP Database File

This article discusses methods that may be used to recover a corrupted Dynamic Host Configuration Protocol (DHCP) database. Back to the top MORE INFORMATION Important This section, method, or task contains steps that tell you how to modi… Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how […]

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Troubleshooting DHCP servers: Dynamic Host Configuration Protocol (DHCP)

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2 Troubleshooting DHCP servers What problem are you having? The DHCP server is stopped. The DHCP server is unable to provide service to clients. One of two DHCP servers on the same subnet is not servicing clients. The DHCP server appears to have suffered some data corruption or loss. The server appears to be affected by another problem not described above. The DHCP server is stopped. Cause: The DHCP server has not been authorized to operate on the network. Solution: Authorize the […]

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