Backing Up and Restoring the DHCP Database

DHCP servers store DHCP lease and reservation information in database files. By default, these files are stored in the %SystemRoot%\System32\DHCP directory. The key files in this directory are used as follows:

  • Dhcp.mdb The primary database file for the DHCP server

  • J50.log A transaction log file used to recover incomplete transactions in case of a server malfunction

  • J50.chk A checkpoint file used in truncating the transaction log for the DHCP server

  • Res1.log A reserved log file for the DHCP server

  • Res2.log A reserved log file for the DHCP server

  • Tmp.edb A temporary working file for the DHCP server

Backing Up the DHCP Database

The backup directory in the %SystemRoot%\System32\DHCP folder contains backup information ...

Get Windows Server® 2008 Administrator's Pocket Consultant now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.

Start your free trial