DNS Scavenging Questions
Posted on 2007-10-09
We have a Windows Server 2003 / SP2 domain with AD-Integrated DNS zones. We are accumulating a number of stale resource records from clients, and are having name resolution issues as a result. I would like to enable DNS scavenging, but need to make sure I understand exactly how to do this. I've read a number of articles on this, and based on that, I believe that just turning it on using the default settings (7 days) will work...our DHCP leases are all 8 days. However, I'm not clear on a couple things. 1) We have 5 AD-Integrated Primary Zones...only one of which has an issue with duplicate stale records. Should I enable scavenging just for the one zone, or go with the option to "scavenge all zones"? And how do I do this? I've read some articles that say to just enable the options at the zone level...others state that you must select the "Set aging and scavenging for all zones" option on each DNS server along with enabling it at the zone level. 2) If I must enable scavenging at the DNS server level, do I set the same options on both of our DNS servers, or just configure 1 to do the scavenging? 3) Do I need to run the AGEALLRECORDS command before turning this on, or will it be OK since they were all already AD-Integrated zones? Thanks.