I am new in Heartbeat/ELKStack, can you please help me to understand below points:-
Can we use Heartbeat as an opensource?
IS there any limitation to configure IP/host for ICMP Monitoring, I have 3000+ servers, so can I monitoring ICMP for all 3000 servers through Heartbeat?
If I'll put all hosts details in a file and heartbeat will use that file and monitor ICMP for all hosts. If it's possible, how can I do this.