How to improve DNS Propagation speed in an AD Domain controller

Question

How to improve DNS Propagation speed in an AD Domain controller or How can I increase the speed of DNS records update in Active Directory

A DNS server has been setup in an Active Directory Domain controller.

The DNS servers’ records are not updated very frequently and as a result new website or Webpages does not load for the clients (work stations) connected to the AD environment
(If the DNS is set to 8.8.8.8 in the Client PC and if the IP address of the DC is removed from client DNS settings- then new website are loaded to user)

I have done some searches on the internet and found few possible solution to improve the speeds of the DNS records updates in AD

Some of the solutions I went through and tried are mentioned below:
Using DNS Forwarders: - this has been currently setup in the AD
DNS cache clearing: - I am not sure is this can be done, or if it’s safe to clear
I have also followed the steps for DNS settings in as shown in this post

But above steps have not solved the issue

Is there any possible solution or method to improve the speeds of the DNS records updates in AD? So that any new website that is available in the internet is available to domain computer.

Answer 1

Hi,

So you have 2 DCs and both are on same site including the client? What sort of webpages does not load internal Application WebPages or External sites like google.com,Microsoft.com?

(If the DNS is set to 8.8.8.8 in the Client PC and if the user is removed from domain - then new website are loaded to user)
This part is bit strange, why are you removing the user from the domain and what is the reason behind this?

If it is external WebPages how is Internet access setup? Proxy Servers?

Answer 2

Hello there,

If you want replication to occur immediately instead of waiting for the typical replication cycle, follow these steps:

-In Administrative Tools, start Active Directory Sites and Services.
-Expand Sites. There should be at least one site labeled "default-first-site-name" (or others if they have been manually configured).
-Expand default-first-site-name, expand Servers, and then expand Computer.
-Expand NTDS Settings. One or more objects are listed in the right pane. One of those objects is a link to the domain controller you want. To see the "friendly" name, right-click an entry and view the name. One of the objects points to the domain controller you want. Right-click that entry, and then click Replicate Now. The replication is performed immediately.

Most of the elements in the DNS system are outside your control—ISPs and DNS root servers distributed around the world have their own policies. However, there is a simple way to speed up DNS propagation:

Define or modify an A record that points your hostname to the new destination IP address.
Set a minimal TTL for that DNS record

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Answer 3

Hi,

You have not specified how many Domain Controllers you have and what is the Operating System? Client OS? Do you have DHCP or static IP?