Hi there,
I am trying to build a GTM like stuff where DNS load balancing can be done.
Where say I have zone created as example.com with 2 A records and DNS
monitors the host with lower TTL entry. So if one of host goes down DNS
automatically updates the record and removes the down host entry so that
traffic can be routed away from down host. Not sure if you have seen F5
3DNS stuff. I believe this is widely used in DNS geo load balancing. And
since ZLB is such great load balancer product I guess this can be easily be
achieved using othr module or scripting. The important point here is
updating zone entry automatically on NS server so that traffic wont reach
to host which is down.
Can this be possible?
On 9 Dec 2012 21:53, "Lazuardi Nasution" <[email protected]> wrote:
> Hi Manish,
>
> Of course you can install DNS/BIND on the same server with ZLB. You can
> use cron of check_* for doing backend servers health check. By the way, I'm
> still not get the reason you need DNS/BIND on your case. May be you can
> explain some scenario about your case.
>
> Best regards,
>
>
> On Sun, Dec 9, 2012 at 9:03 PM, Manish Rane <[email protected]> wrote:
>
>> Hi there,
>>
>> I completely agree this is not ZLB part. But I request a feature where
>> DNS/BIND can be installed on ZLB itself and can act as a NS server. And
>> since it by default monitors the status of hosts, I believe its just a
>> matter of writing a php script or something by which it can detect the fail
>> hosts and auto-update the entries inside zone?
>>
>> It shouldn't be that difficult? What say Team? I mean I am looking at ZLB
>> a complete LB just like F5 3DNS or GTM.
>>
>>
>> On Sat, Dec 8, 2012 at 9:44 PM, Lazuardi Nasution <[email protected]
>> > wrote:
>>
>>> Hi Manish,
>>>
>>> I believe it is not ZLB part, it is DNS service part which has
>>> capability of resolving and ordering the output with TTL parameter. If you
>>> can do it with, let's say, BIND, the ZLB in front of BIND servers can help
>>> DNS service scalability.
>>>
>>> I have experience with a load balancer hardware. The scenario is by
>>> putting two DNS servers or two group of DNS servers with different
>>> different output ordering. Each DNS server or group of DNS servers is
>>> related with one of two VIP. If there is DNS request hit a VIP, so it will
>>> be served by DNS server or group of DNS servers which will give ordering
>>> priority to IP from related ISP.
>>>
>>> Best regards,
>>>
>>>
>>> On Sat, Dec 8, 2012 at 4:05 PM, Manish Rane <[email protected]> wrote:
>>>
>>>> Hi Team
>>>>
>>>> Just wondering if ZLB can be used as a Global Traffic Manager or just
>>>> like F5 3DNS. Is there any such configuration available or some kindaa
>>>> scripting can be done by which low TTL DNS configured on ZLB and have it
>>>> configured as GTM?
>>>>
>>>> If not I would sincerely request a feature like this which will make
>>>> this product a complete and would be a great help to Open Source Community.
>>>>
>>>>
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>>>
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>
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