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Categories: DNS Modification

DNS Glue Records

DNS Glue Records are special A records that link a private name server, such as ns1.yourdomain.com, to its IP address at the registrar level. They are required when the name server uses the same domain it manages, preventing a circular DNS lookup issue where resolvers cannot find the name server's IP address.

By storing the name server's IP address directly with the registrar, glue records allow DNS resolvers to locate and contact your private name servers successfully.

After setting up your private name servers and updating the required DNS records, verifying your DNS Glue records is the final step in completing your private name server configuration.

In this article, we will discuss the following topics:

Verify Your SOA and NS Records

This article explains how to fix DNS glue records by verifying that the SOA and NS records in your domain's DNS zone match the name servers configured at your registrar.

The SOA (Start of Authority) and NS (Name server) records tell the internet that your private name servers are authoritative and contain the most up-to-date information about your DNS settings. If these are not set correctly, some DNS servers will not trust your private name servers. Other DNS servers may encounter issues when there is a mismatch between the registrar's records and your name server records. This can result in some users being able to reach your domain while others cannot. So, it is always a good idea to double-check these settings.

Shared hosting plans cannot use private name servers, so there is no need to worry about the DNS Glue on those hosting plans.

Fixing the DNS Glue Records

Depending on your hosting plan, the instructions for making the proper DNS Glue record changes will vary. Refer to the appropriate section below for instructions specific to your control panel.

  • WHM ⤵ - If you're on VPS or Dedicated hosting, see the instructions in this section.
  • Plesk ⤵ - If you're using Windows hosting, refer to this section.

WHM

The following steps explain how to update the NS records in WHM when using private name servers.

  1. Log in to WHM.
  2. Look for the DNS Zone Manager section. Use the search bar in the left pane or at the top.
  3. Locate your domain and click on its Manage button.

    HostGator WHM DNS Functions DNS Zone Manager Manage button
     

  4. In the SOA field, click Edit.

    HostGator WHM DNS Functions DNS Zone Manager Edit button
     

  5. Make sure the Mname textbox is using your primary private name server with the trailing dot (ns1.).

    HostGator WHM DNS Functions DNS Zone Manager SOA
     

  6. Click on Save Record.
  7. In the same section, look for the NS records and click Edit.
  8. In the NS fields, make sure they are using your private name servers (ns1. and ns2.). Make sure to include their trailing dots!

    HostGator WHM DNS Functions DNS Zone Manager NS
     

  9. Click the Save Record button.

Repeat these steps for each domain hosted on your server.

Plesk

The following steps will show you how to change the NS records when using private name servers with Plesk on Windows Dedicated hosting.

  1. Log in to Plesk.
  2. Go to your domain's control panel.
  3. Click on Websites & Domains in the left-side menu.

    HostGator Plesk Websites and Domains
     

  4. Click the DNS Settings link.

    HostGator Plesk Hosting Settings
     

  5. Click the domain you want to manage.  

    HostGator Plesk Edit DNS
     

  6. In the Edit the Resource Record section, you can edit the existing NS records by selecting the host entry or adding a new NS record if needed.

    HostGator Plesk Edit DNS Resource
     

  7. Once done, click on Apply, then hit the OK button.
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