NAME

       calidns - A DNS recursor testing tool

SYNOPSIS

       calidns [OPTIONS] QUERY_FILE DESTINATION INITIAL_QPS HITRATE

DESCRIPTION

       calidns  reads  queries from QUERY_FILE and sends them as a recursive query to DESTINATION
       (an IPv4 or IPv6 address, optionally with a port number), starting at INITIAL_QPS  queries
       per second and aims to have a cache hitrate of HITRATE percent.

       It  will  then  try to determine the maximum amount of queries per second the recursor can
       handle with the aforementioned HITRATE.

QUERY_FILE FORMAT

       The format of the QUERY_FILE is very simple, it should contain "QNAME QTYPE"  tuples,  one
       per line. For example:

          powerdns.com A
          powerdns.com AAAA
          google.com A

       This is similar to Alexa top 1 million list.

OPTIONS

       --ecs <SUBNET>
              Add  EDNS  Client Subnet option to outgoing queries using random addresses from the
              specified SUBNET range (IPv4 only).

       --ecs-from-file
              Read IP or subnet values from the query file and add them  as  EDNS  Client  Subnet
              option to outgoing queries.

       --increment <NUM>
              On  every  subsequent  run,  multiply  the  number of queries per second by NUM. By
              default, this is 1.1.

       --maximum-qps <NUM>
              Stop incrementing once this rate has been reached, to provide a stable load.

       --minimum-success-rate <NUM>
              Stop the test as soon as the success rate drops below this value, in percent.

       --plot-file <FILE>
              Write results to the specified file.

       --quiet
              Whether to run quietly, outputting only the maximum QPS reached.   This  option  is
              mostly useful when used with --minimum-success-rate.

       --want-recursion
              Set this flag to send queries with the Recursion Desired flag set.

AUTHOR

       PowerDNS.COM BV

COPYRIGHT

       2001-2019, PowerDNS.COM BV