Simple Go program to stress test a DNS server.
It displays the number of queries made, along with the answer per second rate reached.
First:
go get github.com/MickaelBergem/dnsstresss
Then:
$ dnsstresss -h
dnsstresss - dns stress tool
Send DNS requests as fast as possible to a given server and display the rate.
Usage: dnsstresss [option ...] targetdomain [targetdomain [...] ]
-concurrency int
Internal buffer (default 50)
-d int Update interval of the stats (in ms) (default 1000)
-f Don't wait for an answer before sending another
-i Do an iterative query instead of recursive (to stress authoritative nameservers)
-r string Resolver to test against (default "127.0.0.1:53")
-random Use random Request Identifiers for each query
-v Verbose logging
For IPv6 resolvers, use brackets and quotes:
dnsstresss -r "[2001:4860:4860::8888]:53" -v google.com.
Example:
