Optimal configuration of DNS Clustering for 3 linux servers running WHM/cPanel

Posted on 2005-05-15
Last Modified: 2013-11-15
Hi All,

Just signed up to EE premium service - here's my first question...

I've got 3 linux servers running WHM/cPanel. WHM says:

"Dns Clustering allows you to get keep records synchronized across multiple servers. This system replaces the old Dns Master system used in previous versions."

What is the optimal configutation for DNS clustering across > 2 servers?

If my 3 servers are A, B, and C, which of these options is preferred:

a) Add B and C to A; add A and C to B; add A and B to C
b) Add B to A; Add C to A

If I wer a 4th ser91c
 a 4th server, D, then with option b) all I'd had to do would be to add D to A and I'm done. With option a) I'd have to add A+B+C to D, then I've have to visit A, B, and C in turn in order to add D. So option b) certainly seems preferable from a maintenance point of view, so does it make it correct?

Question by:itomic

    Author Comment

    Not sure why the text of my original post got a bit mashed up...

    Anyhow, thanks for your reply. I asked the question in other forums and got a consensus: option b is the way to go. In other words, the thing to do is to choose one of your servers as the 'primary'. You then DNS synchronise all other servers with this one. Then if you add another server, you DNS synchronise this new one with the primary. Any DNS records on any of your servers will then get synchronised between all other servers.

    Author Comment

    I'm looking at the FAQ about closing questions, and it's not explicit enough for me to work out the ramifications of deleting a question.

    1. I'm paying a regularly monthly fee, so a 'refund' (given that I answered my own question) doesn't seem relevant.
    2. Surely 'deleting' a question doesn't actually fully delete it in the sense that the question and answer is no longer available for anyone else to benefit from?? Can someone reassure me here? This is what it sounds like!

    LVL 1

    Accepted Solution

    Closed, 125 points refunded.
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