go-mdnsping

README

Description

A command line tool to query multiple DNS resolver and show there delay and if they answer.

Basic Usage

After build execute the binary with all DNS servers that you want to request and give optionally a domain with -d. Stop with CTRL+C. For example:

./go-mdnsping -d example.com 8.8.8.8 8.8.4.4 208.67.222.222 208.67.220.220 208.67.222.220 208.67.220.222 127.0.0.1
DNS Server     Success  Errors  Error %  Last  Average  Best  Worst - Queries
8.8.8.8        32       0       0.00%    4ms   4ms      3ms   16ms    ..............................
8.8.4.4        32       0       0.00%    4ms   4ms      3ms   11ms    ..............................
208.67.222.222 32       0       0.00%    3ms   4ms      3ms   8ms     ..............................
208.67.220.220 32       0       0.00%    4ms   4ms      3ms   7ms     ..............................
208.67.222.220 32       0       0.00%    4ms   4ms      3ms   5ms     ..............................
208.67.220.222 32       0       0.00%    4ms   4ms      3ms   8ms     ..............................
127.0.0.1      0        32      100.00%  0ms   0ms      0ms   7ms     ??????????????????????????????

The tool has a help when you call it without arguments:

./go-mdnsping
Usage: ./go-mdnsping  [-c <max count>] [-d <domain>] <dns resolver ip> [<dns resolver ip> ...]

This tool does query all given DNS servers and report the
answer delays and show a history of the last queries.

Arguments:
  -c count
        exit after sended count of DNS queries
  -d domain
        domain that should be queried (default "example.com")
  -h    show help
  -help
        show help

How to Build

1. Install go
2. get this repo: go get github.com/Anthrazz/go-mdnsping
3. build it: cd ~/go/src/github.com/Anthrazz/go-mdnsping && go build