to: sysadmin
# -----------------------------------------------------------------------------
+# tcp resets this host sends
- alarm: 1m_ipv4_tcp_resets
+ alarm: 1m_ipv4_tcp_resets_sent
on: ipv4.tcphandshake
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
+ alarm: 10s_ipv4_tcp_resets_sent
on: ipv4.tcphandshake
lookup: average -10s unaligned absolute of OutRsts
units: tcp resets/s
every: 10s
- warn: $this > ((($1m_ipv4_tcp_resets < 5)?(5):($1m_ipv4_tcp_resets)) * (($status >= $WARNING) ? (1) : (4)))
+ warn: $this > ((($1m_ipv4_tcp_resets_sent < 5)?(5):($1m_ipv4_tcp_resets_sent)) * (($status >= $WARNING) ? (1) : (4)))
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)
- to: silent
+ to: sysadmin
+
+# -----------------------------------------------------------------------------
+# tcp resets this host receives
+ alarm: 1m_ipv4_tcp_resets_received
+ on: ipv4.tcphandshake
+ 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
+ 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) : (4)))
+ 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)
+ to: sysadmin