Solved

DNS and server 2008 R2

Posted on 2013-11-11
2
399 Views
Last Modified: 2013-11-28
Hi,

We're about to enable DNS scavenging on 2008 R2 and when looking on DNS i see some servers that have static IPs showing with a Timestamp of "static", and others have an actual timestamp e.g. 11/09/2013 10:00 PM

All our servers have static IPs and we're wondering why they don't all show as "statics". We're concerned that these "timestamp'd" servers may somehow get scavenged, can we change to statics?

Cheers
0
Comment
Question by:kswan_expert
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 6

Assisted Solution

by:RaithZ
RaithZ earned 250 total points
ID: 39640463
a Static entry is most likely one that was created by hand, vs one that is registered dynamically when the server boots up.  Every time it boots (or someone runs "ipconfig /registerdns") the server contacts the DNS server and lets it know its hostname and what IP its using, these should be the servers that have the timestamped entries.  

As long as you keep this in mind when you set the time frame for records to be scavenged, you will be fine.

This is true only for Windows servers though.   Linux servers should have actual static entries created for them.
0
 
LVL 24

Accepted Solution

by:
Sandeshdubey earned 250 total points
ID: 39640477
If the records are created manually then it will show static.More on  Scavenging, static entries & time stamps see this:http://msmvps.com/blogs/acefekay/archive/2009/08/20/dhcp-dynamic-dns-updates-scavenging-static-entries-amp-timestamps-and-the-dnsproxyupdate-group.aspx

Don't be afraid of DNS Scavenging. Just be patient.
http://blogs.technet.com/b/networking/archive/2008/03/19/don-t-be-afraid-of-dns-scavenging-just-be-patient.aspx

I will also recommend to take backup of DNS:
http://social.technet.microsoft.com/Forums/windowsserver/en-US/6409b8d5-da43-41f6-83ba-f706a6422dcc/dns-manual-backup?forum=winserverDS

Note:Note:If this is static record aging/scavenging is not applied on the static records because they don't get timestamps. If scavenging is enabled at the zone level it will not scavenge static records but if it is configured at the server level static records will also get time stamp and will be considered for scavenging when records becomes stale.
0

Featured Post

Ready to trade in that old firewall?

Whether you need to trade-up to a shiny new Firebox or just ready to upgrade from whatever appliance you're using now, WatchGuard has the right appliance for you! Find your perfect Firebox today with appliance sizing tool!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This process allows computer passwords to be managed and secured without using LAPS. This is an improvement on an existing process, enhanced to store password encrypted, instead of clear-text files within SQL
Compliance and data security require steps be taken to prevent unauthorized users from copying data.  Here's one method to prevent data theft via USB drives (and writable optical media).
This Micro Tutorial hows how you can integrate  Mac OSX to a Windows Active Directory Domain. Apple has made it easy to allow users to bind their macs to a windows domain with relative ease. The following video show how to bind OSX Mavericks to …
Are you ready to implement Active Directory best practices without reading 300+ pages? You're in luck. In this webinar hosted by Skyport Systems, you gain insight into Microsoft's latest comprehensive guide, with tips on the best and easiest way…
Suggested Courses

622 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question