Thanks a lot for your responses .
>From  the initial testes Black box exporter works just fine for me . thanks
for the suggestion.

Yes, I do have access to the backends servers

Le mer. 25 mars 2020 à 03:08, Cameron Kerr <cameron.kerr...@gmail.com> a
écrit :

> If you have a VIP, then chances are you have multiple servers behind it
> and have some type of health-check URI/mechanism in place (or using a
> default one, such as whether a TCP connection or ICMP ping succeeds).
>
> I would suggest that you use the blackbox_exporter, but you use it to
> monitor:
>
> * each backends healthcheck (directly, in the same manner that your
> load-balancer would) --- this will help you know when your application is
> ABOUT to fail (eg. a rolling upgrade is causing things to fall out of the
> load-balancer).
> * each backends application statistics (this could be a combination of
> things like node_exporter, plus perhaps things like node_exporter's file
> metrics, or jmx_exporter, or ....
> * the application as experienced at the front-door(s). You might also
> imagine having multiple targets for this if you have multiple points of
> presence for your application (eg. CDNs) or just want to test from
> different places.
> * test SSL certificates too (I believe you can do this using
> blackbox_exporter, but I haven't looked myself). If you terminate SSL in
> multiple places (eg. your load-balancer deployment is layer-4 and not
> layer-7) then monitor all of these places.
> * if testing per-server application readiness/health which is designed to
> bust through caching layers and exercise the various backends such as
> database and storage, then you might want to change the scrape interval for
> that... or use something like node_exporter with the file metrics so you
> can have some other testing/readiness engine running tests and then
> reporting the results quickly.
>
> Note that load-balancer configuration may influence error behaviour. For
> example, if the VIP goes down, does ARP respond? If it doesn't, then that
> may cause probes to take much longer before timing out, so be mindful of
> timeout settings for blackbox_exporter and tune if required.
>
> You didn't say whether you had access to the various backends, so I've
> made some assumptions here, as if you're like where I work, you have access
> to the servers, but perhaps not access to the load-balancer.
>
> There's lots to think about with this topic; just take what's useful.
>
> Cheers,
> Cameron
>
> On Thursday, 19 March 2020 22:54:00 UTC+13, Ilhem Hamdi wrote:
>>
>> Hello,
>>
>> I would like to Monitor VIP on F5 by :
>> - Monitoring  the ssl certfications
>> - Monitoring the status of VIP ( Up /down)
>>
>> The probleme is I don't have access on F5 , all I have is the URLS  to
>> check the connectivity of the VIP or I use curl command  to check the
>> expiration of certifcations  I need to Monitor these VIP via Prometheus ans
>> send alerts to clients .  I konw that you can configure exporter to do the
>> job for you but  is it possible if you don't have acess to network
>> equipeemnt  ? any recommendation  ?
>>
>> Thanks
>>
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