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Multiple DNS' pointing via registrar?

by Medfordite
5 replies
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Really now...this probably belongs somewhere in a different forum, but since I didn't see exactly where, let me place it here.

I have been intrigued by this for a long time and am wondering if this will make any difference. I have the space to specify 6 name servers with my current registrar. What advantage would this be?

For Example:

ns1.example.com -HOST A
ns2.example.com -HOST A
ns1.example1.com -HOST B
ns2.example1.com -HOST B

If Host A went down, then would Host B take over? Or, if Host A went over capacity, then Host B would fill in? Or would this configuration do something different?

I am a bit confused in this area.
  • Profile picture of the author Medfordite
    *BUMP* Anyone?
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    • Profile picture of the author Lloyd Buchinski
      Bump.

      My host only uses 2 nameservers for my domains, and I fill both of those in. If one fails, the other nameserver is a back up. Hosts can have more than 2, and then you could fill in more blanks. They normally supply you with your nameserver information when you get your welcome email. If that got lost, just get in touch with them about it.
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      Do something spectacular; be fulfilled. Then you can be your own hero. Prem Rawat

      The KimW WSO

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  • Profile picture of the author Medfordite
    I understand the 2 DNS records idea and I always keep my DNS names saved.

    Just wondering if the first 2 fail, then it would go redundant to the second 2?
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    • Profile picture of the author seasoned
      Originally Posted by Medfordite View Post

      I understand the 2 DNS records idea and I always keep my DNS names saved.

      Just wondering if the first 2 fail, then it would go redundant to the second 2?
      The pointers are from the registRY, NOT the registrar.

      I admittedly had never thought of THIS aspect, but it was ALWAYS to provide redundancy. Originally, you could have only 2, and now you can have up to 6. The one to respond first is the one to be used. I guess it COULD be used to balance load. Each could point to a different server, that would be linked to balance load.

      Steve
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  • Profile picture of the author Jeffery
    It in certain tech circles it is called "Round Robin DNS" and in other circles it is called "DNS Clustering".

    Years ago I introduced the concept to the Lead Technician at what is now called ThePlanet.com. This was not new to the industry, but it was in fact new to the tech. This was a result of failing DNS servers.

    Steve is absolutely 100% correct about load balance. And it applies to more than just load balancing.

    Most people on a shared hosting account cannot configure the DNS settings at the server level because there is no access to the settings. However, on a Dedicated Server or so called VPS Server this perfectly doabale because we would have access to the settings.

    Jeffery 100% :-)
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    In the minute it took me to write this post.. someone died of Covid 19. RIP.
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