examples.md

Examples

• parallel benchmark with repeating queries
• sending AAAA DNS queries
• hostnames provided directly
• hostnames provided using file
• sending queries of multiple different query types
• IPv6 DNS server benchmarking
• using probability to randomize concurrent queries
• EDNSOPT usage
• DoT
• DoH
  • DoH via GET/POST
  • DoH/1.1, DoH/2
• Plotting graphs

parallel benchmark with repeating queries

this example will execute the benchmark in 2 parallel threads, where each thread will send 10 A example.com. DNS queries serially

dnstrace -n 2 -c 10 --server 8.8.8.8 --recurse example.com

sending AAAA DNS queries

dnstrace -n 2 -c 10 --server 8.8.8.8 -t AAAA --recurse example.com

multiple hostnames provided directly

hostnames provided directly as arguments to the tool

dnstrace -n 10 -c 10 --server 8.8.8.8 --recurse redsift.io example.com google.com

hostnames provided using file

loads hostnames from given data source file

dnstrace -n 10 -c 10 --server 8.8.8.8 --recurse @data/2-domains

sending queries of multiple different query types

this can be achieved by repeating type -t, all queries will be made by each specified query type

dnstrace -n 10 -c 10 --server 8.8.8.8 --recurse -t A -t AAAA @data/2-domains

together with probability option this can be used for generating arbitrary random load

dnstrace -n 10 -c 10 --server 8.8.8.8 --recurse -t A -t AAAA @data/2-domains --probability 0.33

IPv6 DNS server benchmarking

dnstrace -n 10 -c 10 --server '[fddd:dddd::]:53' --recurse idnes.cz

using probability to randomize concurrent queries

you can randomize queries fired by each concurrent thread by using probability lesser than 1, in this example roughly every third hostname from datasource will be used by the single concurrent benchmark thread

dnstrace -c 10 --server 8.8.8.8  --recurse --probability 0.33  @data/alexa

EDNSOPT usage

you can also specify EDNS option with arbitrary payload, here we are specifying EDNSOPT 65518 coming from the local/experimental range with payload fddddddd100000000000000000000001

dnstrace -n 10 -c 10  --recurse idnes.cz --server 127.0.0.1 --ednsopt=65518:fddddddd100000000000000000000001

DoT

benchmarking DoT server

dnstrace -n 10 -c 10  --dot --recurse  --server 1.1.1.1:853 idnes.cz

DoH

benchmarking DoH server via DoH over POST method

dnstrace -n 200 -c 2 --server 'https://1.1.1.1/dns-query' --recurse google.com

DoH via GET/POST

you can also specify whether the DoH is done via GET or POST using --doh-method

dnstrace -c 2 --server 'https://1.1.1.1/dns-query' --doh-method get --recurse google.com

DoH/1.1, DoH/2

you can also specify whether the DoH is done over HTTP/1.1 or HTTP/2 using --doh-protocol

dnstrace -c 2 --server 'https://1.1.1.1/dns-query' --doh-protocol 2 --recurse google.com

Plotting graphs

plots benchmark results as histograms, boxplots and line graphs to the current directory

dnstrace -n 500 -c 2 --server 8.8.8.8 --plot . --recurse google.com

generates graphs like these: