Backup of the Active Directory
Has 60-Day Useful Life
Ř Windows 2000 prohibits the restoring of old backup
images into a replicated enterprise. Specifically, the useful
life of a backup is identical to the “tombstone lifetime”
setting for the enterprise. The default value for the
tombstone lifetime entry is 60 days. This value can be set
on the Directory Service (NTDS) config object.