'How can I setup network traffic alerts on a Linux machine using Prometheus?
I am using Prometheus to monitor network traffic on Linux machines. I see several useful metrics like node_network_receive_bytes_total
, node_network_transmit_bytes_total
, and node_network_receive_errs_total
. How can I setup alerts for network traffic when I am not aware of the network bandwidth of the machine?
Solution 1:[1]
you should use some of queries to have good results of network monitoring. i am using some queries on Grafana and i share them with you:
- popular queries:
Query-outbound
sum (irate(node_network_transmit_bytes{hostname=~"$hostname", device!~"lo|bond[0-9]|cbr[0-9]|veth.*"}[1m])) by (hostname) > 0
Legend format: {{hostname}} - {{device}} - outbound
Query-inbound
sum (irate(node_network_receive_bytes{hostname=~"$hostname", device!~"lo|bond[0-9]|cbr[0-9]|veth.*"}[1m])) by (hostname) > 0
Legend format: {{hostname}} - {{device}} - inbound
- complicated queries:
network terafic of eno(or any things you want) devices:
Legend format:
{{hostname}} - ({{device}})_in
irate(node_network_receive_bytes{hostname=~'$hostname',device=~"^en.*"}[5m])*8
Legend format:
{{hostname}} - ({{device}})_out
irate(node_network_transmit_bytes{hostname=~'$hostname',device=~"^en.*"}[5m])*8
netstas:
Legend format:
{{hostname}} established
node_netstat_Tcp_CurrEstab{hostname=~'$hostname'}
udp stat:
irate(node_netstat_Udp_InDatagrams{hostname=~"$hostname"}[5m])
irate(node_netstat_Udp_InErrors{hostname=~"$hostname"}[5m])
irate(node_netstat_Udp_OutDatagrams{hostname=~"$hostname"}[5m])
irate(node_netstat_Udp_NoPorts{hostname=~"$hostname"}[5m])
contract
Legend format:
Queue Used ({{hostname}})
node_nf_conntrack_entries{hostname=~"$hostname"}/node_nf_conntrack_entries_limit{hostname=~"$hostname"}
pleas attention to hostname . it is a template variable on Grafan . and legend format is a label parsing for metrics on Grafana.
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
Solution | Source |
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Solution 1 | Community |