blob: 190271e470d41056394beee4ad16791edfa5a334 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
# you can disable an alarm notification by setting the 'to' line to: silent
# -----------------------------------------------------------------------------
# tcp resets this host sends
alarm: 1m_ipv4_tcp_resets_sent
on: ipv4.tcphandshake
class: Errors
type: System
component: Network
os: linux
hosts: *
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_ipv4_tcp_resets_sent
on: ipv4.tcphandshake
class: Errors
type: System
component: Network
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 20s down 60m multiplier 1.2 max 2h
options: no-clear-notification
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: sysadmin
# -----------------------------------------------------------------------------
# tcp resets this host receives
alarm: 1m_ipv4_tcp_resets_received
on: ipv4.tcphandshake
class: Errors
type: System
component: Network
os: linux freebsd
hosts: *
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_ipv4_tcp_resets_received
on: ipv4.tcphandshake
class: Errors
type: System
component: Network
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 20s down 60m multiplier 1.2 max 2h
options: no-clear-notification
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: sysadmin
|
