Checking for and remediating lingering objects

A lingering object is an object that was tombstoned and then garbage-collected on all domain controllers but, after that point in time, the object was reintroduced by a domain controller that was restored from a backup, image, or snapshot that was older than the tombstone lifetime period.

You can periodically check for them.

Getting ready

Sign in to the domain controller that holds the PDCE FSMO role, using an account that is a member of the Domain Admins group.

Next, find the objectGUID attribute of the domain controller. Use the following command on an elevated Command Prompt (cmd.exe):

dsquery.exe * "CN=DC01,OU=Domain Controllers,DC=LucernPub,DC=com" -scope base -attr objectguid

Replace DC01 with the hostname of the domain controller.

We'll need the objectGUID attribute for the next commands.

How to do it...

Use the following command line on an elevated Command Prompt (cmd.exe) to scan for...