What is Virtual memory, paging and swap space ?
Swapping A process normally runs on physical memory where the memory is divided into sets of pages. A page is a 4kb area of memory and is the basic unit of memory with which both
Red Hat 5 and 6
Tutorial for SYSLOG with Examples in Red Hat Linux
I have written another article with step by step instructions to redirect specific messages to different a log file from /var/log/messages so that your messages file is not filled up with unwanted eventsSyslog is one
How does a DNS query works when you type a URL on your browser?
Ever Wondered How does a DNS query works? I mean what happens exactly when you type www.golinuxhub.com on your browser. Honestly most of us are not bothered unless the web page doesnot opens. Anyways let me tell
How to create password less ssh connection for multiple non-root users
I had done password less shh authentication between multiple Linux box a couple of time but this time I had to do the same for normal user. I thought it would be same and actually
How to create user without useradd command in Linux
Follow these steps to create a user without using useradd command in Red Hat Linux. Step 1 Add an entry of user details in /etc/passwd The field details are as shown below username:password:UID:GID:Comments:Home_Directory:Login Shell #
How to unlink/delete a symbolic in Linux
In my earlier post I had shown you in detail the steps to create a soft link and hard link in Linux. If you have missed it you can read about the same in below
How to give normal user root privileges using sudo in Linux/Unix
In this post I will be very brief on the topic we need to do. As for more knowledge on sudo command and sudoers file follow the below link Understanding syntax, arguments, aliases used in
How to install/uninstall/upgrade rpm package with/without dependencies
I have already written an article with 15 practical examples on various rpm based commands which are used in real world of IT on a day to day basis. Also do you know what every