Is your DNS round-robin setup really round?
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Is your DNS round-robin setup really round?

Almost ideal round robin

Just test! Take this simple script and test on your own, with python 2 or 3.


usage: [-h] [-c COUNT] [-d DELAY] name

positional arguments:
  name                  DNS name to test

optional arguments:
  -h, --help            show this help message and exit
  -c COUNT, --count COUNT
                        set total count of resolves
  -d DELAY, --delay DELAY
                        set delay between resolves in 1/100s of second

Sample run command:

$ ./ -c 20

Sample output:

================ ================ 20/20 [               ||||| 25.0%] 5 [               ||||| 25.0%] 5 [          |||||||||| 50.0%] 10