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# check if entropy is too low
# the alarm is checked every 1 minute
# and examines the last hour of data

   alarm: lowest_entropy
      on: system.entropy
      os: linux
   hosts: *
  lookup: min -5m unaligned
   units: entries
   every: 5m
    warn: $this < (($status >= $WARNING) ? (200) : (100))
   delay: down 1h multiplier 1.5 max 2h
    info: minimum number of entries in the random numbers pool in the last 5 minutes
      to: silent