Solved

what is glue record in DNS?

Posted on 2011-09-30
1
567 Views
Last Modified: 2012-05-12
Hello, I would like to know what is glue record in DNS and why do we use it? It would be nice if someone could provide real example. Thanks!
0
Comment
Question by:beer9
1 Comment
 
LVL 6

Accepted Solution

by:
Reubenwelsh earned 500 total points
ID: 36891279
glue record is the IP address of a name server held at the domain name registry.

Glue records are required when you wish to set the name servers of a domain name to a hostname under the domain name itself.

For example if you wished to set the name servers of example.com to ns1.example.com and ns2.example.com you would need to also provide the glue records (i.e. the IP addresses) for ns1.example.com and ns2.example.com.

If you did not provide the glue records for these name servers then your domain name would not work as anyone requiring DNS information for it would get stuck in a loop:

What is the name server for example.com? -> ns1.example.com
What is the IP address of ns1.example.com? -> don't know, try looking at name server for example.com
What is the name server for example.com? -> ns1.example.com

...and so on.

With the glue record in place the registry will hold the IP address and the loop will not occur:

What is the name server for example.com? -> ns1.example.com
What is the IP address of ns1.example.com? -> [IP Address]
0

Featured Post

VMware Disaster Recovery and Data Protection

In this expert guide, you’ll learn about the components of a Modern Data Center. You will use cases for the value-added capabilities of Veeam®, including combining backup and replication for VMware disaster recovery and using replication for data center migration.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
DNS Name resolution between two untrusted forests 22 103
accessing our own website from inside our windows 2012 network 2 28
IPV6 and AWS 3 84
SPF record. 2 19
If you have a multi-homed DNS setup in windows, you can have issues with connectivity to the server that hosts the DNS services (or even member servers of your domain if this same DNS server is a DC). This is because windows registers all of its IPs…
One of the most often confused topics in the area DNS is the idea of GLUE records. Specifically, what they are, when they are needed, when they are provided, and how they are created. First, WHAT IS GLUE? To understand GLUE, you must first under…
Along with being a a promotional video for my three-day Annielytics Dashboard Seminor, this Micro Tutorial is an intro to Google Analytics API data.
With the power of JIRA, there's an unlimited number of ways you can customize it, use it and benefit from it. With that in mind, there's bound to be things that I wasn't able to cover in this course. With this summary we'll look at some places to go…

910 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

Need Help in Real-Time?

Connect with top rated Experts

20 Experts available now in Live!

Get 1:1 Help Now