From a64a253794ac64cb40befee54db53bde17dd0d49 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 7 Nov 2018 13:19:29 +0100 Subject: New upstream version 1.11.0+dfsg Signed-off-by: Daniel Baumann --- health/health.d/tcp_resets.conf | 67 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 health/health.d/tcp_resets.conf (limited to 'health/health.d/tcp_resets.conf') diff --git a/health/health.d/tcp_resets.conf b/health/health.d/tcp_resets.conf new file mode 100644 index 000000000..91dad3c6a --- /dev/null +++ b/health/health.d/tcp_resets.conf @@ -0,0 +1,67 @@ + +# you can disable an alarm notification by setting the 'to' line to: silent + +# ----------------------------------------------------------------------------- + + alarm: ipv4_tcphandshake_last_collected_secs + on: ipv4.tcphandshake + os: linux freebsd + hosts: * + calc: $now - $last_collected_t + units: seconds ago + every: 10s + warn: $this > (($status >= $WARNING) ? ($update_every) : ( 5 * $update_every)) + crit: $this > (($status == $CRITICAL) ? ($update_every) : (60 * $update_every)) + delay: up 0 down 5m multiplier 1.5 max 1h + info: number of seconds since the last successful data collection + to: sysadmin + +# ----------------------------------------------------------------------------- +# tcp resets this host sends + + alarm: 1m_ipv4_tcp_resets_sent + on: ipv4.tcphandshake + os: linux + hosts: * + lookup: average -1m at -10s unaligned absolute of OutRsts + units: tcp resets/s + every: 10s + info: average TCP RESETS this host is sending, over the last minute + + alarm: 10s_ipv4_tcp_resets_sent + on: ipv4.tcphandshake + os: linux + hosts: * + lookup: average -10s unaligned absolute of OutRsts + units: tcp resets/s + every: 10s + warn: $this > ((($1m_ipv4_tcp_resets_sent < 5)?(5):($1m_ipv4_tcp_resets_sent)) * (($status >= $WARNING) ? (1) : (20))) + delay: up 0 down 60m multiplier 1.2 max 2h + options: no-clear-notification + info: average TCP RESETS this host is sending, over the last 10 seconds (this can be an indication that a port scan is made, or that a service running on this host has crashed; clear notification for this alarm will not be sent) + to: sysadmin + +# ----------------------------------------------------------------------------- +# tcp resets this host receives + + alarm: 1m_ipv4_tcp_resets_received + on: ipv4.tcphandshake + os: linux freebsd + hosts: * + lookup: average -1m at -10s unaligned absolute of AttemptFails + units: tcp resets/s + every: 10s + info: average TCP RESETS this host is sending, over the last minute + + alarm: 10s_ipv4_tcp_resets_received + on: ipv4.tcphandshake + os: linux freebsd + hosts: * + lookup: average -10s unaligned absolute of AttemptFails + units: tcp resets/s + every: 10s + warn: $this > ((($1m_ipv4_tcp_resets_received < 5)?(5):($1m_ipv4_tcp_resets_received)) * (($status >= $WARNING) ? (1) : (10))) + delay: up 0 down 60m multiplier 1.2 max 2h + options: no-clear-notification + info: average TCP RESETS this host is receiving, over the last 10 seconds (this can be an indication that a service this host needs, has crashed; clear notification for this alarm will not be sent) + to: sysadmin -- cgit v1.2.3