Linux - NewbieThis Linux forum is for members that are new to Linux.
Just starting out and have a question?
If it is not in the man pages or the how-to's this is the place!
Notices
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
Click Here to receive this Complete Guide absolutely free.
I Need to run a specific command (pinging a particular machine).
Which need to run every time i reboot the server till the time it shut down.
What is the preferred way of doing this.
Will it impact my system performance.
My Operating system is as below.
Code:
[root@XYZ~]# lsb_release -a
LSB Version: :core-3.1-ia32:core-3.1-noarch:graphics-3.1-ia32:graphics-3.1-noarch
Distributor ID: OracleVMserver
Description: Oracle VM server release 2.2.0
Release: 2.2.0
Codename: n/a
[root@XYZ~]# uname -r
2.6.18-128.2.1.4.9.el5xen
Ping should not take too much of your local resources but how many pings you need to send? Keep pinging? It will definitely not recommended. Will slow up your network a bit.
You can run the script at boot by putting it rc.local file in /etc.
Ping should not take too much of your local resources but how many pings you need to send? Keep pinging? It will definitely not recommended. Will slow up your network a bit.
You can run the script at boot by putting it rc.local file in /etc.
Thank you very much chaitanya.That was indeed very helpful .I need to ping the machines continuously i m afraid it might slow down the network but i dont have any other option left with me .
If you want to just check weather the system is up, then you can send only 2 or 3 echo request packets through ping. This ping will not continue indefinitely.
Just place following script pinging.sh under /etc/rc.local
Code:
#!/bin/bash
ping -c 3 ip OR fully.quantified.domain.name;date > /home/username/temp
This will not consume much resources of your system..
You can see output in temp file of your home directory...
I would recommend the delay idea mentioned in the above bash script, you can continuously ping the machine to ensure it is up without continuously pinging. i.e. every minute 2 ping requests are sent, if they don't come back the machine is down. If they do come back you are still good to go.
Ping,
I think you should mention about your purpose of pinging the machine continuously so these people can give you a suggestion or solution. I think putting sleep (delay time) is a good idea rather than ping after ping.
LinuxQuestions.org is looking for people interested in writing
Editorials, Articles, Reviews, and more. If you'd like to contribute
content, let us know.