Dhcp not updating dns windows 2016 r2

These can be simple host (A) records for a device like a network printer or copier.

dhcp not updating dns windows 2016 r2-10

To enable scavenging on a Microsoft DNS server running Windows Server 2008 or newer, open up your DNS management console and connect to an authorative DNS server. Select the Advanced tab, then place a check in the Enable automatic scavenging of stale records box. (Your scavenging period simply defines how often the process will run, akin to a scheduled task.) This will be the server that performs the scavenging process. To configure aging settings on your zones from within the same DNS management console, right-click the DNS server and select Set Aging/Scavenging For All Zones.

Alternatively, if you prefer to set the values per-zone, right-click the zone and click Properties.

If your scavenging period is set to the default setting of 7 days, the records are purged only once a week.

Your DNS record can now exist for a period between 15 – 20 days.

For some environments, especially smaller ones where network changes are somewhat infrequent, this may not be a big deal.

However, as devices are connected, moved and ultimately disconnected, DNS records can begin to sprawl.

If the record is older than the aging values, the scavenging process purges it from DNS. By default, DNS Aging and Scavenging will ignore static records.

However, DNS Aging and Scavenging can be configured to process static resource records in addition to dynamic resource records.

If you choose to do this, you need to exercise some caution, as the timestamp (or age) of a static record doesn’t typically change.

Tags: , ,