My network exists in private address space and I am unable to perform DNS lookups against DNS servers on the internet directly blocked by firewall. There are other networks that exist in the same private address space as my network. I need to be able to perform DNS lookups for devices in these networks as well.
There are 2 main internal DNS servers in this private address space, but not on my netowrk. I can perform DNS lookups against both of these servers for devices internal to our address space and names on the internet. Even so, they continue to repopulate into the root hints tab in the server properties for DNS after roughly an hour. Does anyone know how to permanently remove these entries? Permanently deleting root hints from a Microsoft DNS server is not supported, however, if you want to remove them, you can.
Before you continue down this path, please have a full backup of your servers and be prepared for unintentional outages. The root hints must be removed from 3 different places, the Root Hints tab in the server properties, the cache. Remove them in the following order. To remove them from the cache. I highly recommend backing up this file before you start.
Click on the root hints tab, and remove the servers. A much better way to forgo the use of root hints is to just uncheck the Use root hints if no forwarders are available check box on the forwarders tab and use forwarders instead. Microsoft does not support the removal of the root hints and the Microsoft DNS server requires at least one root hint to be listed. You can change the root hints and those changes should be permanent.
Of the two, I would choose option 1 as it preserves the root hints in case your infrastructure does change. Sign up to join this community. It appears from your last output all should be working by now.
That's interesting that it's the only error now. Did you run cmd prompt as admin? Anything else in the event viewer? NOTE : I've set 1. Bunch of errors on file and storage services. Mostly things that not meet the recommended value. I'd keep an eye on things but I don't see any critical errors. Which isn't bad if backups are good.
To continue this discussion, please ask a new question. Get answers from your peers along with millions of IT pros who visit Spiceworks. Just wondering if I can remove the root hints without any problems. I keep getting root hint errors in dcdiag. Popular Topics in Windows Server. Spiceworks Help Desk. The help desk software for IT. Track users' IT needs, easily, and with only the features you need.
Learn More ». Verify your account to enable IT peers to see that you are a professional. Windows Server expert. These are the errors from the dcdiag log. Guess it is easier to remove the root hints and get quad9 or something set up right. EminentX This person is a verified professional.
GerardBeekmans This person is a verified professional. The server is running as a VM. BTW it's a single domain. You also seem to have a time issue. Maybe NTP isn't setup yet. Justin This person is a verified professional.
Cleared all the event logs and run dcdiag again. I can ping quad9 without any issues. Same thing on all x. That's all exactly as you'd want it to be. Only one error message today. Should I worry about it Text.
Ran it as admin. Event viewer gives me a GPO event id That's it. BPA scan says I am in compliance. Scavenging is enabled, old DC references are all cleaned up. I will now monitor to see how it does.
I am getting DNS request timed out when I do a nslookup from a client machine. I did have to create a reverse lookup zone so that the PTR was created. Has your DHCP scope been modified to hand out the new DNS servers, and is one of those servers listed as the name server when you performed the nslookup? Yes DHCP has bee updated. Yes both DNS servers appear in the nslookup but both come up with "Cant find server name for address" non-existent domain. I guess I had to give it some time to propagate.
My next issue is that when I plug my domain name into network-tools. If your DNS servers are public facing which it looks like they likely are this could happen. I have an issue where my users are unable to acess the internet. The servers have forwarders setup to eachother and the use root hints if no forwarders is unchecked.
The forwarders should point to your ISP's name servers, or something like Google's name servers 8. If you have them going to each other, nothing ever gets out. I believe it'll still let you save them - try to save them and then browse to a site like news. You may also want to check the root hints settings. To continue this discussion, please ask a new question. Which of the following retains the information it's storing when the system power is turned off?
Submit ». Get answers from your peers along with millions of IT pros who visit Spiceworks. I am not seeing any events that would point me in any direction during the outage periods Please Assist. Best Answer.
0コメント