Did you ever wonder if your backup software also secures your DHCP database? I often did, but never found time to make sure that we have backups of our DHCP settings. (Yeah, shame on me!). I was relying on Symantec Backup Exec to do the job.
- Pip install Boto3 - Thu, Mar 24 2022
- Install Boto3 (AWS SDK for Python) in Visual Studio Code (VS Code) on Windows - Wed, Feb 23 2022
- Automatically mount an NVMe EBS volume in an EC2 Linux instance using fstab - Mon, Feb 21 2022
Since we are currently moving our DHCP server to a virtual machine, we finally investigated this issue. I was a little surprised that Backup Exec 10.1 was unable to backup the DHCP.mdb file which contains the DHCP database, even though, we use the open file option.
However, my instinct about having backups of our DHCP server, was correct. After all, this should be a very common problem, and I never heard of a backup agent for a DHCP server.
Every 60 minutes Windows copies the DHCP settings to the %systemroot%\system32\dhcp\Backup\new directory. And these copies can be easily secured by any backup software since the files are not open. You can change this time interval in the Registry:
Subscribe to 4sysops newsletter!
The minimum setting of "Backupinterval" is 5 minutes, the maximum
30 60 minutes.