load balance of DNS

[Warren Kumari]

On Jan 16, 2012, at 2:58 PM, Todd Snyder wrote:

>>> do you propose he specify the ratios with BIND?
>>> 
>>> One (icky) solution is to hand out more addresses for one server than 
>>> the otherŠ
>>> 
>>> www.example.com  IN  A  192.168.1.1
>>> www.example.com  IN  A  192.168.1.2
>>> www.example.com  IN  A  192.168.1.3
>>> www.example.com  IN  A  192.168.2.1
>>> 
>>> Bind 192.168.1.[1-3] to server1 and 192.168.2.1 to server2.
> 
>> Unless things have changed since I last checked this (many years ago), BIND ignores the duplicates.
> 
> In this case, there are no dupes - I thought this at first, but noticed it's 1.2 and 2.1 after my dyslexia turned off for a moment.  
> 
> The idea is novel, if ugly - bind multiple unique addresses and the BIND daemon won't know they're all for the same physical box.  It'd work, but ug.

Oh, yeah -- I'm the first to admit that it is ugly, but it *does* work -- I used this for a while at a previous company (before GSLB solutions existed) and while it made me want to throw up every now and then, it did allow me to perform unequal load-sharing…

W 



> 
> t.
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---
Don't be impressed with unintelligible stuff said condescendingly .
    -- Radia Perlman.

Warren Kumari
warren at kumari.net