Am 18.01.21 um 10:04 schrieb Marek Kozlowski:
:-)
On 1/18/21 9:59 AM, Reindl Harald wrote:
Am 18.01.21 um 09:49 schrieb Marek Kozlowski:
I believe that such a solution (read to install) should exist.
Unfortunately I don't know the magic keywords to find it:
I have a group of hosts with different IPs offering the same
services. I'm able to install some agents on them for monitoring
their network/cpu/number of users/whatever utilization. I'm wondering
if there is an option for BIND9 to obtain those load parameters on a
regular basis (let's say: every 10 minutes) and when queried for the
A record return ONLY one IP address - the one of the server with the
lowest utilization?
It can be implemented on those servers but in the solution I'm asking
about the key point is that the BIND server takes the decision.
this can't work - only a minority of clients is asking your nameserver
directly, most talk to caches
you try to solve the problem on the wrong side
you need a loadbalancer in front of the cluster
The problem is: I'm supervising the BIND. I'm NOT supervising the other
servers. Their admins requested such a solution. Personally I agree with
your opinion but... The question is: is there such a ready solution as I
described?
i doubt that someone wrote arelieable solution, it's just not the job of
dns and even if such a solution exists it's not well tested/maintained
by lack of consumers
reject the request with "i don't solve issues outside my responsibility
ignoring best practices"
that starts starts with agents (network/cpu/number of users/whatever
utilization) where you suddenly mix responsibilities
what does it mean for sour nameservers if that agents itself are
overloaded? does it reduce the quality or even bring down nameservices?
solve problems where they exist instead compromise additional services -
bind itself can't do it anyways, it would be whatever software which
decides to update the dns-zone runniong outside of named
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