Solved

How to repeatedly test DNS lookup in a loop

Posted on 2014-04-14
2
1,056 Views
Last Modified: 2014-04-14
I suspect an application is running slowly because its doing a DNS lookup repeatedly, and the hosts file may be in error

There are complications on why I can not quickly debug this

So my question is:  is there a simple test that would perform a DNS look up repeatedly (cant use ping, but can use host)

Could someone please post a quick script or something like taht

Thanks  

btw, running suse
0
Comment
Question by:Anthony Lucia
2 Comments
 
LVL 10

Expert Comment

by:Rafael
ID: 40000288
Not sure of the servers you're looking up so here is something that I use to help me write quick scripts.

http://www.compileonline.com/execute_bash_online.php
0
 
LVL 37

Accepted Solution

by:
Gerwin Jansen, EE MVE earned 500 total points
ID: 40000294
You mean just running nslookup's from a script?

Like this maybe:

num=0
while [ ${num} -lt 100 ]
do
  nslookup host
  sleep 1
done;

The above will do 100 host lookups.
0

Featured Post

What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Fine Tune your automatic Updates for Ubuntu / Debian
Google Drive is extremely cheap offsite storage, and it's even possible to get extra storage for free for two years.  You can use the free account 15GB, and if you have an Android device..when you install Google Drive for the first time it will give…
Learn how to find files with the shell using the find and locate commands. Use locate to find a needle in a haystack.: With locate, check if the file still exists.: Use find to get the actual location of the file.:
In a previous video, we went over how to export a DynamoDB table into Amazon S3.  In this video, we show how to load the export from S3 into a DynamoDB table.

772 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question