NAME

       Smokeping::probes::EchoPingDNS - an echoping(1) probe for SmokePing

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.

SEE ALSO

       Smokeping::probes::EchoPing, Smokeping::probes::EchoPingPlugin