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Man Pages


Manual Reference Pages  -  SMOKEPING_PROBES_DNS (3)

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NAME

Smokeping::probes::DNS - Name Service Probe for SmokePing

CONTENTS

SYNOPSIS



 *** Probes ***

 +DNS

 binary = /usr/bin/dig # mandatory
 forks = 5
 offset = 50%
 step = 300
 timeout = 15

 # The following variables can be overridden in each target section
 lookup = www.example.org
 pings = 5
 server = ns1.someisp.net

 # [...]

 *** Targets ***

 probe = DNS # if this should be the default probe

 # [...]

 + mytarget
 # probe = DNS # if the default probe is something else
 host = my.host
 lookup = www.example.org
 pings = 5
 server = ns1.someisp.net



DESCRIPTION

Integrates dig as a probe into smokeping. The variable binary must point to your copy of the dig program. If it is not installed on your system yet, you should install bind-utils >= 9.0.0.

The Probe asks the given host n-times for it’s name. Where n is the amount specified in the config File.

VARIABLES

Supported probe-specific variables:
binary The location of your dig binary.

Example value: /usr/bin/dig

This setting is mandatory.

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

timeout How long a single ’ping’ takes at maximum

Example value: 15

Default value: 5

Supported target-specific variables:
lookup Name of the host to look up in the dns.

Example value: www.example.org

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

server Name of the dns server to use.

Example value: ns1.someisp.net

AUTHORS



 Igor Petrovski <pigor@myrealbox.com>,
 Carl Elkins <carl@celkins.org.uk>,
 Andre Stolze <stolze@uni-muenster.de>,
 Niko Tyni <ntyni@iki.fi>,
 Chris Poetzel<cpoetzel@anl.gov>



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2.6.11 SMOKEPING_PROBES_DNS (3) 2016-04-05

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