Event ID 1017 — DHCP Backup/Restore
Updated: January 8, 2009
Applies To: Windows Server 2008 R2
Maintaining a backup of the Dynamic Host Configuration Protocol (DHCP) database protects you from data loss in the event of data corruption or a hard disk failure.
There are three backup methods supported by the DHCP Server service:
- Synchronous backups that occur automatically. The default backup interval is 60 minutes.
- Asynchronous (manual) backups, performed by using the Backup command in the DHCP snap-in.
- Backups using Windows Backup (Ntbackup.exe) or other backup software.
When a synchronous or asynchronous backup occurs, the entire DHCP database is saved.
|Product:||Windows Operating System|
|Message:||The DHCP service encountered the following error when backing up the registry configuration:
Give SYSTEM read/write permissions to the backup/restore directory
This error occurs when the SYSTEM process does not have read/write access to the backup/restore directory path.
To perform these procedures, you must be a member of the Administrators group, or you must have been delegated the appropriate authority.
To change permissions on files and folders:
- At the DHCP server computer, click Start, point to All programs, point to Accessories, and then click Windows Explorer.
- Right-click the file or folder for which you want to set permissions, click Properties, and then click the Security tab.
- Complete one of the following steps as needed:
- To set permissions for a group or user that does not appear in the Group or user names box, click Add, type the name of the group or user, and then click OK.
- To change or remove permissions from an existing group or user, click the name of the group or user.
- To allow or deny permission, in the Permissions for User or Group box, select the Allow or Deny check box.
- To remove the group or user from the Group or user names box, click Remove.
- You can only set file and folder permissions on drives formatted to use NTFS.
- Groups or users who are granted Full Control permissions for a folder can delete files and subfolders within that folder, regardless of the permissions that protect the files and subfolders.
- If the check boxes under Permissions for User or Group are shaded or if the Remove button is unavailable, then the file or folder has inherited permissions from the parent folder.
- When adding a new user or group, by default, this user or group will have Read, Read and Execute, and List Folder Contents permissions.
To verify that backup and restore was successful:
- Click Start, click Administrative Tools, and then click DHCP.
- In the DHCP console tree, right-click IPv4, click Properties, click Advanced, and then confirm that the Database path%SystemRoot%\System32\Dhcp contains files.