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# you can disable an alarm notification by setting the 'to' line to: silent
# -----------------------------------------------------------------------------
# tcp resets this host sends
alarm: 1m_ip_tcp_resets_sent
on: ip.tcphandshake
class: Errors
type: System
component: Network
host labels: _os=linux
lookup: average -1m at -10s unaligned absolute of OutRsts
units: tcp resets/s
every: 10s
info: average number of sent TCP RESETS over the last minute
alarm: 10s_ip_tcp_resets_sent
on: ip.tcphandshake
class: Errors
type: System
component: Network
host labels: _os=linux
lookup: average -10s unaligned absolute of OutRsts
units: tcp resets/s
every: 10s
warn: $netdata.uptime.uptime > (1 * 60) AND $this > ((($1m_ip_tcp_resets_sent < 5)?(5):($1m_ip_tcp_resets_sent)) * (($status >= $WARNING) ? (1) : (10)))
delay: up 20s down 60m multiplier 1.2 max 2h
options: no-clear-notification
summary: System TCP outbound resets
info: Average number of sent TCP RESETS over the last 10 seconds. \
This can indicate a port scan, \
or that a service running on this host has crashed. \
Netdata will not send a clear notification for this alarm.
to: silent
# -----------------------------------------------------------------------------
# tcp resets this host receives
alarm: 1m_ip_tcp_resets_received
on: ip.tcphandshake
class: Errors
type: System
component: Network
host labels: _os=linux freebsd
lookup: average -1m at -10s unaligned absolute of AttemptFails
units: tcp resets/s
every: 10s
info: average number of received TCP RESETS over the last minute
alarm: 10s_ip_tcp_resets_received
on: ip.tcphandshake
class: Errors
type: System
component: Network
host labels: _os=linux freebsd
lookup: average -10s unaligned absolute of AttemptFails
units: tcp resets/s
every: 10s
warn: $netdata.uptime.uptime > (1 * 60) AND $this > ((($1m_ip_tcp_resets_received < 5)?(5):($1m_ip_tcp_resets_received)) * (($status >= $WARNING) ? (1) : (10)))
delay: up 20s down 60m multiplier 1.2 max 2h
options: no-clear-notification
summary: System TCP inbound resets
info: average number of received TCP RESETS over the last 10 seconds. \
This can be an indication that a service this host needs has crashed. \
Netdata will not send a clear notification for this alarm.
to: silent
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