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I'm new here, please bear with me.
I'm a trial period employee at a IT company which focuses on server solutions, failovers etc. I had a task to ping a machine through DNS, whenever machine shuts down the ping should continue (some sort of failover solution, hostname with multiple IPs like web pages and whatnot). I managed to accomplish that by having 2 IPs in DNS table in MS Server 2012 R2. When the machines switched there were dropped packets, and the whole transfer took about 30 seconds, but the task was done. Its was done in test environment, Im not deployed to do that in real situations
Now comes the tricky part - now I have to come up with an instant solution. When I ping a hostname (for example ping Test), when the first machine goes offline, the second machine should start pinging right away without any lost packets or at least reduce failover time to 5 seconds. So how can I make that work?
I have access on physical and virtual machines and servers, Mikrotik routers as well.
Every idea helps, there is no right method. I just need it to ping without interruptions when one machine fails. I tried to Google it, but with no success.