NAME

       Smokeping::probes::AnotherDNS - Alternate DNS Probe

SYNOPSIS

        *** Probes ***

        +AnotherDNS

        forks = 5
        offset = 50%
        step = 300

        # The following variables can be overridden in each target section
        lookup = www.example.org
        mininterval = 0.5
        pings = 5
        port = 53
        recordtype = A
        require_answers = 0
        require_noerror = 0
        timeout = 5

        # [...]

        *** Targets ***

        probe = AnotherDNS # if this should be the default probe

        # [...]

        + mytarget
        # probe = AnotherDNS # if the default probe is something else
        host = my.host
        lookup = www.example.org
        mininterval = 0.5
        pings = 5
        port = 53
        recordtype = A
        require_answers = 0
        require_noerror = 0
        timeout = 5

DESCRIPTION

       Like DNS, but uses Net::DNS and Time::HiRes instead of dig. This probe does *not* retry the request three
       times before it is considerd "lost", like dig and other resolver do by default. If operating as caching
       Nameserver, BIND (and maybe others) expect clients to retry the request if the answer is not in the
       cache. So, ask the nameserver for something that he is authoritative for if you want measure the network
       packet loss correctly.

       If you have a really fast network and nameserver, you will notice that this probe reports the query time
       in microsecond resolution. :-)

VARIABLES

       Supported probe-specific variables:

       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:

       lookup
           Name of the host to look up in the dns.

           Example value: www.example.org

       mininterval
           Minimum time between sending two lookup queries in (possibly fractional) seconds.

           Default value: 0.5

       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

       port
           The UDP Port to use.

           Default value: 53

       recordtype
           Record type to look up.

           Default value: A

       require_answers
           Only Count Answers with answer count >= this value.

           Default value: 0

       require_noerror
           Only Count Answers with Response Status NOERROR.

           Default value: 0

       timeout
           Timeout for a single request in seconds.

           Default value: 5

AUTHORS

       Christoph Heine <Christoph.Heine@HaDiKo.DE>

2.6.8                                              2016-08-31                     Smokeping_probes_AnotherDNS(3)