-



Symptom

Some DNS records may be deleted from DNS server automatically. For example, you have created static A records for your printers.  However, these records are deleted automatically.

Cause
This problem may occur when DNS scavenging is enabled. DNS scavenging is feature which helps remove stale resource records automatically. Scavenging improves DNS server and zone transfer performance when working with dynamic update together. However, some devices may not be able to perform dynamic update. When DNS scavenging is enabled, these records may be recognized as stale and deleted automatically because they are not updated timely.

Solution
Scavenging is set in three places on a Windows Server:

1.                   On the individual resource record to be scavenged.
2.                   On a zone to be scavenged.
3.                   At one or more servers performing scavenging.

It must be set in all three places or nothing happens. You may configure DNS scavenging settings based on your requirement.

Option #1: Disable scavenging on the individual resource record
If only several specific records, such as A record for TCP/IP printers, do not support dynamic update and you want to enable DNS scavenging on other records, you may disable scavenging on these particular records by performing the following steps:

1.                   Open the DNS snap-in.
2.                   Right click the individual record and open the Properties dialog.
3.                   Uncheck the Delete this record when it becomes stale option and click OK.

Option #2: Disable scavenging on the DNS zone
If you want to disable DNS scavenging on a particular DNS zone, you can perform the following steps:

1.      Open the DNS snap-in.
2.      In the console tree, right-click the applicable zone, and then click Properties.
3.      On the General tab, click Aging.
4.      Clear the Scavenge stale resource records check box.
5.      Click OK.
Option #3: Disable scavenging on the DNS server
If you want to disable DNS scavenging on the server as a whole, you can perform the following steps:

1.                   Open the DNS snap-in.
2.                   Right click the DNS server item and open the Properties dialog.
3.                   On the Advanced tab, clear the Enable automatic scavenging of stale records option, and click OK.

More Information

Using DNS Aging and Scavenging

Don't be afraid of DNS Scavenging. Just be patient.

Comments

Post a Comment

Popular posts from this blog

altiris software key

-
Image
I think a lot of people, like me, spend a lot of time try finding how to get those download: Latest Symantec workspace Virtualization , SWV 6.1, that is advanced SVS version, is integrated with the Altiris client management suite CMS 7.  (Yes, it was also named "SVS PRO") Notice 1: This package includes the "Wise Virtual Composer", and both x86+x64 versions. Notice 2: This link currently also includes SWS (Streaming) and SWC (Corporate) [please vote my post if you use it ;-] Story : I was thinking only SVS 2.1 (Software Virtualization Solution) was integrated into the "Client Management Suite 7". But this is not the case and SWV 6.1 (Symantec Workspace Virtualization) must not be paid in addition . Free home license : Both SVS 2.1 "light" version & SWV are still free personal use. I suggest you use now the latest SWV 6.4 (That is SWV 6.1 SP7 or following! Yes Symantec do this version naming - vote here also to a...
Read more

Service Principal Names (SPNs) SetSPN Syntax (Setspn.exe)

-
Image
Service Principal Names (SPNs) SetSPN Syntax (Setspn.exe) Table of Contents SPN Purpose SPN Format SetSPN Viewing or Checking SPN Registrations SPN Registration Errors Related to SPN Registration or Configuration Manually Registering SPNs Troubleshooting SPN Issues Resolving SPN Registration Issues SPN Lookup Errors Delegation External Articles SPN Purpose A service principal name (SPN) is the name by which a Kerberos client uniquely identifies an instance of a service for a given Kerberos target computer. If you install multiple instances of a service on computers throughout a forest, each instance must have its own SPN. A given service instance can have multiple SPNs if there are multiple names that clients might use for authentication. For example, an SPN always includes the name of the host computer on which the service instance is running, so a service instance might register an SPN for each name or alias of its host. ↑  Return to T...
Read more

Troubleshooting Netlogon Error Codes

-
Image
Quick Reference: Troubleshooting Netlogon Error Codes ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ January 28, 2013   by  Mark Morowczynski [MSFT]   //   24 Comments 0 0 Hi this is Brandon Wilson and today I will be providing you with a quick reference for troubleshooting Netlogon error codes. I say “quick reference” very loosely here, because this is one of those sticky subjects that can easily expand into many more areas and become a very long discussion. So, I’m going to do my best to focus on just the codes and possible solutions for the error codes that are more common to see. Anyone who has dealt with some of these issues knows that some of these outlined areas can lead to huge revenue loss for a business, or at the very least an annoying authentication prompt J I welcome you to leave comments and questions, or suggestions for articles that you as the reader would be interested in seeing us do on AskPFE Platforms ( http://blogs.tech...
Read more