SmokePing

Smokeping::probes::EchoPingDNS

Overview

Measures DNS roundtrip times for SmokePing with the echoping_dns plugin.

Synopsis

*** Probes ***

+EchoPingDNS

binary = /usr/bin/echoping
forks = 5
offset = 50%
step = 300

# The following variables can be overridden in each target section
dns_request = example.org # mandatory
dns_tcp = yes
dns_type = AAAA
extraopts = -some-letter-the-author-did-not-think-of
ipversion = 4
pings = 5
plugin = /path/to/dns.so
pluginargs = -p plugin_specific_arg
priority = 6
timeout = 1
tos = 0xa0
waittime = 1

# [...]

*** Targets ***

probe = EchoPingDNS # if this should be the default probe

# [...]

+ mytarget
# probe = EchoPingDNS # if the default probe is something else
host = my.host
dns_request = example.org # mandatory
dns_tcp = yes
dns_type = AAAA
extraopts = -some-letter-the-author-did-not-think-of
ipversion = 4
pings = 5
plugin = /path/to/dns.so
pluginargs = -p plugin_specific_arg
priority = 6
timeout = 1
tos = 0xa0
waittime = 1

Variables

Supported probe-specific variables:

binary: The location of your echoping binary.; Default value: /usr/bin/echoping
forks: Run this many concurrent processes at maximum; Example value: 5; Default value: 5
offset: If you run many probes concurrently you may want to prevent them from hitting your network all at the same time. Using the probe-specific offset parameter you can change the point in time when each probe will be run. Offset is specified in % of total interval, or alternatively as 'random', and the offset from the 'General' section is used if nothing is specified here. Note that this does NOT influence the rrds itself, it is just a matter of when data acqusition is initiated. (This variable is only applicable if the variable 'concurrentprobes' is set in the 'General' section.); Example value: 50%
step: Duration of the base interval that this probe should use, if different from the one specified in the 'Database' section. Note that the step in the RRD files is fixed when they are originally generated, and if you change the step parameter afterwards, you'll have to delete the old RRD files or somehow convert them. (This variable is only applicable if the variable 'concurrentprobes' is set in the 'General' section.); Example value: 300

Supported target-specific variables:

dns_request: The DNS request (domain name) to be queried.; Example value: example.org; This setting is mandatory.
dns_tcp: The echoping_dns '--tcp' option: use only TCP ('virtual circuit'). Enabled if specified with a value other than 'no' or '0'.; Example value: yes
dns_type: The echoping_dns '-t' option: type of data requested (NS, A, SOA etc.); Example value: AAAA; Default value: A
extraopts: Any extra options specified here will be passed unmodified to echoping(1).; Example value: -some-letter-the-author-did-not-think-of
ipversion: The IP protocol used. Possible values are ``4'' and ``6''. Passed to echoping(1) as the ``-4'' or ``-6'' options.; Example value: 4
pings: How many pings should be sent to each target, if different from the global value specified in the Database section. Note that the number of pings in the RRD files is fixed when they are originally generated, and if you change this parameter afterwards, you'll have to delete the old RRD files or somehow convert them.; Example value: 5
plugin: The echoping plugin that will be used. See echoping(1) for details. This can either be the name of the plugin or a full path to the plugin shared object.; Example value: /path/to/dns.so; Default value: dns
pluginargs: Any extra arguments needed by the echoping plugin specified with the pluginname variable. These are generally provided by the subclass probe.; Example value: -p plugin_specific_arg
priority: The ``-p'' echoping(1) option.; Example value: 6
timeout: The ``-t'' echoping(1) option.; Example value: 1; Default value: 5
tos: The ``-P'' echoping(1) option.; Example value: 0xa0
waittime: The ``-w'' echoping(1) option.; Example value: 1

Authors

Niko Tyni <ntyni@iki.fi>

Notes

The fill, size and udp EchoPing variables are not valid.

Plugins, including echoping_dns, are available starting with echoping version 6.