[Last Call] Learn about multicloud storage options and how to improve your company's cloud strategy. Register Now

x
?
Solved

what is glue record in DNS?

Posted on 2011-09-30
1
Medium Priority
?
608 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
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 6

Accepted Solution

by:
Reubenwelsh earned 2000 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

NFR key for Veeam Backup for Microsoft Office 365

Veeam is happy to provide a free NFR license (for 1 year, up to 10 users). This license allows for the non‑production use of Veeam Backup for Microsoft Office 365 in your home lab without any feature limitations.

Question has a verified solution.

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

Most DNS problems are VERY easily troubleshot and identifiable if you can follow the steps a DNS query takes. I would like to share the step-by-step a DNS query takes from the origin to the destination. _____________________________________________…
Occasionally you run into the website or two that will not resolve properly using your own DNS servers.  Some people simply set up global forwarders for their DNS server.  I don’t recommend doing this because it can cause problems resolving addresse…
In this video, Percona Solutions Engineer Barrett Chambers discusses some of the basic syntax differences between MySQL and MongoDB. To learn more check out our webinar on MongoDB administration for MySQL DBA: https://www.percona.com/resources/we…
In response to a need for security and privacy, and to continue fostering an environment members can turn to for support, solutions, and education, Experts Exchange has created anonymous question capabilities. This new feature is available to our Pr…
Suggested Courses

650 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