Linux date command - Display and Set System Date and Time

Date on the operating system may only be considered as a timepiece. Especially on console mode, we do generally not see date as an important think. But for Administrator, this assumption is false. Do you know that a wrong date and time can make you can’t compile an application? Because date and time is important, […]

December 7, 2013 | By
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Using Password Aging to Secure your Linux Access

Security is playing important role in computer networks. Since you can’t trust anyone in the network, you have to protect your server. Sometime security hole comes not from outside, but from inside. One of the example is the validity of username and password. As an System Administrator, you may understand that you have to manage […]

December 6, 2013 | By
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Built in Audit Trail Tool - Last Command in Linux

If you are working as a server administrator, you may understand that you have to protect your server. Not only from the outside, but you have to protect it from the inside. Linux has one built-in command to see who is the last logged in user into your server. The command is last. This command […]

December 3, 2013 | By
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How to Configure LVM in Linux (pvcreate, lvcreate, vgcreate)

Logical Volume Management (LVM) creates a layer of abstraction over physical storage, allowing you to create logical storage volumes. With LVM in place, you are not bothered with physical disk sizes because the hardware storage is hidden from the software so it can be resized and moved without stopping applications or unmounting file systems. For […]

December 2, 2013 | By
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How To Check Linux Kernel Support my System Devices ?

Many new users to linux cannot find the right drivers for their devices and they start to hate it.Time has passed and things are not the same. Computer and tech geeks love solving problems, thanks to them we can now use most of our devices with linux. There is always a way for a linux […]

December 1, 2013 | By
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How To Display And Set Hostname in Linux

With more and more computer connected to the network, computer need to have an attribute to make it different to each other. Same as human in the real world, computer also hava an attribute which named hostname. What is hostname From its manual page, hostname is used to display the system’s DNS name and to […]

December 1, 2013 | By
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A 5 Step Guide To Get Started With VIM Editor In Linux

Linux offers powerful command line alternatives especially when it comes to text editors. But, most of the users do not prefer command line text editors because of the steep learning curve. I had the same perception until I actually started using one of the most popular command line text editor -- Vim. Though, I agree […]

November 30, 2013 | By
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Unbelievable ! 30 Linux TOP Command Examples With Screenshots

The top command in Linux displays the running processes on the system. One of the most important tools for a system administrator. It is used extensively for monitoring the load on a server. In this article, we explore the top command in detail. The top command is an interactive command. Many commands are available when […]

November 28, 2013 | By
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Linux Uptime Command - Find How Long Your System Been Running

Information about how long the system has been running may not critical for some people. But for server administrators, it is critical. Servers which running mission critical application must be running as long as possible. Sometimes it must be zero-downtime. So, how can we know information about it? On Linux operating system, we can use […]

November 24, 2013 | By
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20 Linux Cat Command Examples For File Management

In Linux operating system most of configuration files, logs even shell scripts are in text file format. There is why we have numbers of text editors in Linux. When you just need to see the content of those files, you can use a simple command named cat. From cat manual page it says cat is […]

November 23, 2013 | By
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Linux diff Command Explained With Examples

When it comes to file comparison, GUI based software are mostly used. Very few people actually use a command line utility for this purpose. Though I won't say that using command line for file/directory comparison is as easy as a cake walk but if you are a Linux user then I think you should know […]

November 20, 2013 | By
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9 Linux Uname Command Examples To Get Operating System Details

When you are in console mode, there is no 'Right click > About' to give you information about your operating system. In Linux, you can use command uname to help you about that. Uname is the short name for unix name. Just type uname in console. When you type uname without parameter, it will only […]

November 17, 2013 | By
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Package Management Using YUM In Red Hat Linux

Yum is a utility provided in RHEL based systems to install,remove and search packages. It can do lot more than just installing and removing and that's what I will demonstrate in this article. Yum installs the package dependencies automatically, for example yum install httpd will install https apache server and it's required dependencies automatically. Something […]

November 6, 2013 | By
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How to Use Linux Screen Command For Remote SSH

When you are using ssh command, it provides you only one screen(terminal). If you lose that screen, you lose all you were doing on the remote computer. Sometimes it happens when a network glitch breaks the ssh connection and you lose what you were doing and you have to reconnect the remote server again. That […]

October 9, 2013 | By
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