How short are your Leases in DHCP?
Did you enable Scavenging and change any default values?
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DNS records slowly disappear on 2008 member server in 2003 AD Domain.
We installed a 2008 member server in a 2003 AD domain. This server is a jobsite server in a remote location much like our 2003 member servers.
The server runs DNS and DHCP for the jobsite client PC's as well as print and file services.
I can successfully add the DNS as a secondary DNS server and put in the primary DNS servers and it populates the DNS Zone.
Within hour however the DNS records slowly disappear. Not 100% of them but most of them.
If I try to reload them or reload fro Master nothing happens. Refreshing doesn't work either.
Right now the only way I can get them all back is to delete the DNS Zone and re add it which brings over all of the records but that only lasts a few hours.
Why do the records on the 2008 server disappear?
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Answers
What is disappearing?
Folders: _sites ; _tcp : _udp : _msdcs
Many of the A records although not all of them, but I'd say 80% of them.
What stays? Well the Name Server NS and Host (A) for other DNS servers and a few of the A records but those change each time.
Users can access then Internet at all times so those records stay resident.
Keep in mind this current configuration is the setup on all of my Windows 2003 DNS Member Servers.
DHCP leases are one day, but these records won't even last a day, it deteriorates faster than that.
[I unchecked the "Register this connection's addresses in DNS" checkbox just now based on one of the articles but I would think that I want to Register this connections addresses in DNS so I am not comfortable with that.]
I did not change any default values when I setup the DNS server.
The event viewer doesn't show any errors, it reports getting the zone from one of the Primary DNS servers in its list and those are correctly entered.
Since I haven't changed any thing else just yet except that checkbox, scavenging is set to whatever it is as a default.
By default Scavenging isn't enabled.
I caught that your DNS is on members - this should mean a primary zone with multiple secondaries. Is this correct?
If so, focus only on the Primary since the Secondary zones are read only and can only update based on the Primary. Make sure you have setup Zone Transfers and that the proper secondaries are in the allowed list.
That is correct and the master has all of the appropriate records and all of the 2003 servers are getting updates and log the same information as the 2008 server.
The Master is a 2003 server in the domain and is a DC and a Global Catalog holder. It updates all of the other servers including a DNS server in the same office. That DNS server is also used in the address fields on the secondary DNS servers in the field.
Usually I have the 2008 server pointed directly at the Master server and the other DNS server in this office as a secondary, however when this problem started I removed the other DNS server so that I know that the 2008 server is only getting its DNS Zone files from the Master DNS server.
It logs the updates like the other 2003 servers, in that is sees a newer version and downloads it like the others do. It is just that it periodically loses entries.
I am glad I did not close this.
The problem has reappeared so unchecking the connections addresses in DNS did seem to work for quite awhile.
So it slowly loses its addresses. Now I CAN Transfer from Master and then it will repopulate which os better that what was happening before where I had to remove and re add the zone but I am puxxled as to why it is losing the addresses in the first place.
Try chaning the Listen On IP addresses on your servers so that they only listen on the IP address you want them too. Some times other IP's get in that list and can slow stuff down quite a bit as you'll get mulitple IP mappings to the same host names and it will slow stuff down.
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Here is an interesting note.
If I open the DNS MMC and leave it open - the records do not disappear. I can come back a day later - hit F5 and it refreshes with exactly what was there before I refreshed.
If I close the MMC usually by the end of the day it has lost records.
I will try Only the following IP addresses and see if that does anything when I close the MMC.
This question has been asked on multiple Microsoft Forums as well and hasn't received an answer.
One of the Microsoft Forum Administrators was going to try to set it up in a lab but I haven't heard anything back from them on this issue.
One of the servers is shutdown and rebooted each day - that one seems to lose records each morning when it boots back up.
The other server is on 24/7 and it loses these addresses much slower but if I reboot it then I can see it loses them faster too.
Finally an answer!
We opened a case with Microsoft and after about 50 minutes they had a solution. It is a Hotfix based on KB953317.
The Hotfix needs to be applied for. The technician says he believes it will be released either in a Patch Tuesday update or a Service Pack.
After applying the Hotfix to both 2008 servers the DNS records no longer disappear.
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by: dariusgPosted on 2008-07-15 at 07:47:00ID: 22007529
See if the scavanging of stale records is turned on. Do you get any errors on the DNS server? Is replication happening correctly?
http://web2.minasi.com/for