How to do DNS round robin with different weight

[Wael Shahin]

Hello,
I apologies for not being careful in my last post

----- Original Message ----- 
From: "Mike Mitchell" <Mike.Mitchell at sas.com>
To: "Wael Shahin" <wael.shahin at gmail.com>; <ghicks at cadence.com>; 
<bind-users at isc.org>; <skybirrd at aol.com>
Sent: Tuesday, April 17, 2007 5:18 PM
Subject: RE: How to do DNS round robin with different weight


This should read
RRSET-ORDER IS FULLY IMPLEMENTED IN BIND >= 9.4.0
The "fixed" ordering was not implemented until 9.4.0.  "Cyclic" and "random" 
were implemented earlier.
If you actually read the link Wael Shahin included, you'll find the 
statement

Note
The rrset-order statement is not yet fully implemented in BIND 9. BIND 9 
currently does not support "fixed" ordering.

at the end of the section on RRset Ordering.

If you want rrset-order "fixed" you have to use BIND 9.4.0 or BIND 8.4.7.  I 
recommend BIND 9.4.0.

Mike Mitchell
SAS Institute Inc.
Mike.Mitchell at sas.com
(919) 531-6793


-----Original Message-----
From: bind-users-bounce at isc.org [mailto:bind-users-bounce at isc.org] On Behalf 
Of Wael Shahin
Sent: Tuesday, April 17, 2007 8:50 AM
To: ghicks at cadence.com; bind-users at isc.org; skybirrd at aol.com
Subject: Re: How to do DNS round robin with different weight

Hello,



> Hello,
>
> But under my test BIND 9 can't do this by your way.
> Yes under BIND 8 we can do the load balance like the way you
> mentioned,but BIND 9 seems not support this.


RRSET-ORDER IS FULLY IMPLEMENTED IN BIND > 9.2.3
have you read the bind 9 arm?
http://www.isc.org/sw/bind/arm93/Bv9ARM.ch06.html  #RRset Ordering #sort
listing
having multiple records with fixed rrset-order might be of intrest


> Anyway thanks!
>
> --Sky
>
> -----Original Message-----
> From: ghicks at cadence.com
> To: bind-users at isc.org; skybirrd at aol.com
> Sent: Tue, 17 Apr 2007 3:59 PM
> Subject: Re: How to do DNS round robin with different weight
>
>> To: bind-users at isc.org
>> Subject: How to do DNS round robin with different weight
>> Date: Tue, 17 Apr 2007 03:01:52 -0400
>> From: skybirrd at aol.com
>>
>> Hello members,
>>
>> I'm running BIND-9.3.2. I add these items to do the DNS round-robin:
>>
>> bbs    61.143.0.1
>>          61.143.0.2
>>
>>
>> Then the internet accesses would go to both IPs averagely.
>>
>> But if I need to drive more traffic to the first IP,I may need to set
>> different weight for both IPs.
>> How can I set this weight in Bind?
>
> Put the IP address in multiple times.  Eg, you want traffic to go to
> the first Ip 3 of 4 times.  Have a four record RRset.  Put the first Ip
> in this RRset three times and the second IP in once.  Eg:
>
> host    IN A 1.2.3.4
>    IN A 1.2.3.4
>    IN A 1.2.3.4
>    IN A 1.2.3.5
>
> Or put a load balancer in front of the two IP addresses that divies the
> traffic up in a 3:1 ratio.  (But this is not in accordance with the
> BIND
> discussion charter.)
>
> See the BIND-USERS archives for more info.
>
> Regards,
> GRegory Hicks
>
> ---------------------------------------------------------------------
> Gregory Hicks                           | Principal Systems Engineer
> Cadence Design Systems                  | Direct:   408.576.3609
> 555 River Oaks Pkwy M/S 9B1
> San Jose, CA 95134
>
> I am perfectly capable of learning from my mistakes.  I will surely
> learn a great deal today.
>
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