shell script for stress testing

blackzone · 09-13-2004, 09:10 PM

need to write a script to stress test a dns server.

mainly just keep sending "dig @127.0.0.3 test.example.com" and see how many returned.

my question is not sure how to count it?

I'm thinking maybe send it to a file? dig @127.0.0.3 test.example.com>>file
and count how many returned. Can anyone help on this?

ilikejam · 09-13-2004, 10:14 PM

What does the dig command return for the DNS server you're using?

blackzone · 09-13-2004, 10:35 PM

dig basically is like nslookup.

right now I just print out the date before and after query and check how many query I can do in a second

ilikejam · 09-14-2004, 12:00 AM

I've thought of something better that what I was originally thinking of (I was originally going to grep a dump of all the outputs from the requests...):

do:

Code:

time for ((a=1; a <= 1000; a++)); do dig @127.0.0.3 test.example.com; done

That will tell you how long it took to do 1000 dig requests in a row.

Dave