load balance of DNS

[Barry Margolin]

In article <mailman.827.1326466398.68562.bind-users at lists.isc.org>,
 Matus UHLAR - fantomas <uhlar at fantomas.sk> wrote:

> On 13.01.12 22:40, MyDots.net wrote:
> >Is there a good way of running the current BIND (9.7 and later) for 
> >load balancing a special record?
> >for example,
> >
> >www.example.com  IN  A  192.168.1.1
> >www.example.com  IN  A  192.168.1.2
> 
> kind of.
> 
> >I want the first one to get more web traffic than the second one.
> 
> With DNS you can only hint clients to send their requests by sorting 
> provided RRs in particular order. You can not be sure that they will 
> preserve the order and that they will send their requests to different 
> servers. In fact, most of clients take first server and will 
> communicate with it.

Since caching servers usually do their own sorting or round robin, 
anything you do on the authoritative servers is not likely to be 
preserved.

-- 
Barry Margolin
Arlington, MA