Solved

How to repeatedly test DNS lookup in a loop

Posted on 2014-04-14
2
1,013 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 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

Microsoft Certification Exam 74-409

Veeam® is happy to provide the Microsoft community with a study guide prepared by MVP and MCT, Orin Thomas. This guide will take you through each of the exam objectives, helping you to prepare for and pass the examination.

Question has a verified solution.

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

Suggested Solutions

Using libpcap/Jpcap to capture and send packets on Solaris version (10/11) Library used: 1.      Libpcap (http://www.tcpdump.org) Version 1.2 2.      Jpcap(http://netresearch.ics.uci.edu/kfujii/Jpcap/doc/index.html) Version 0.6 Prerequisite: 1.      GCC …
Setting up Secure Ubuntu server on VMware 1.      Insert the Ubuntu Server distribution CD or attach the ISO of the CD which is in the “Datastore”. Note that it is important to install the x64 edition on servers, not the X86 editions. 2.      Power on th…
Learn how to navigate the file tree with the shell. Use pwd to print the current working directory: Use ls to list a directory's contents: Use cd to change to a new directory: Use wildcards instead of typing out long directory names: Use ../ to move…
This video shows how to set up a shell script to accept a positional parameter when called, pass that to a SQL script, accept the output from the statement back and then manipulate it in the Shell.

919 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

Need Help in Real-Time?

Connect with top rated Experts

22 Experts available now in Live!

Get 1:1 Help Now