dnsquery

README

DNS query monitoring with Netdata

This module provides DNS query round-trip time (RTT).

Metrics

All metrics have "dns_query." prefix.

Labels per scope:

• server: server, network, record_type.

Metric	Scope	Dimensions	Units
query_time	server	query_time	seconds
query_status	server	success, network_error, dns_error	seconds

Configuration

Edit the go.d/dns_query.conf configuration file using edit-config from the Netdata config directory, which is typically at /etc/netdata.

cd /etc/netdata # Replace this path with your Netdata config directory
sudo ./edit-config go.d/dns_query.conf

Here is an example:

jobs:
  - name: job1
    record_types:
      - A
      - AAAA
    domains:
      - google.com
      - github.com
      - reddit.com
    servers:
      - 8.8.8.8
      - 8.8.4.4

For all available options please see module configuration file.

Troubleshooting

To troubleshoot issues with the dns_query collector, run the go.d.plugin with the debug option enabled. The output should give you clues as to why the collector isn't working.

• Navigate to the plugins.d directory, usually at /usr/libexec/netdata/plugins.d/. If that's not the case on your system, open netdata.conf and look for the plugins setting under [directories].

  cd /usr/libexec/netdata/plugins.d/
  

• Switch to the netdata user.

  sudo -u netdata -s
  

• Run the go.d.plugin to debug the collector:

  ./go.d.plugin -d -m dns_query
  

Documentation

Index

• type Config
• type DNSQuery
  • func New() *DNSQuery
  • func (d *DNSQuery) Charts() *module.Charts
  • func (d *DNSQuery) Check() bool
  • func (d *DNSQuery) Cleanup()
  • func (d *DNSQuery) Collect() map[string]int64
  • func (d *DNSQuery) Init() bool

Types

type Config

type Config struct {
	Domains     []string
	Servers     []string
	Network     string
	RecordType  string   `yaml:"record_type"`
	RecordTypes []string `yaml:"record_types"`
	Port        int
	Timeout     web.Duration
}

type DNSQuery

type DNSQuery struct {
	module.Base

	Config `yaml:",inline"`
	// contains filtered or unexported fields
}

func New

func New() *DNSQuery

func (*DNSQuery) Charts

func (d *DNSQuery) Charts() *module.Charts

func (*DNSQuery) Check

func (d *DNSQuery) Check() bool

func (*DNSQuery) Cleanup

func (d *DNSQuery) Cleanup()

func (*DNSQuery) Collect

func (d *DNSQuery) Collect() map[string]int64

func (*DNSQuery) Init

func (d *DNSQuery) Init() bool