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- # you can disable an alarm notification by setting the 'to' line to: silent
- alarm: netfilter_conntrack_full
- on: netfilter.conntrack_sockets
- class: Workload
- type: System
- component: Network
- os: linux
- hosts: *
- lookup: max -10s unaligned of connections
- calc: $this * 100 / $netfilter_conntrack_max
- units: %
- every: 10s
- warn: $this > (($status >= $WARNING) ? (85) : (90))
- crit: $this > (($status == $CRITICAL) ? (90) : (95))
- delay: down 5m multiplier 1.5 max 1h
- summary: System Netfilter connection tracker utilization
- info: Netfilter connection tracker table size utilization
- to: sysadmin
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