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

February 6, 2021