Cloud computing has revolutionized the way businesses operate by providing scalable, cost-effective, and secure IT infrastructure. As more and more companies move their operations to the cloud, Linux has emerged as the dominant operating system in the cloud computing space. In this blog post, we will explore how Linux and cloud computing are a match…
What is an init script, what is the use of it, how to write an init script? Lets begin to know the answers. Declaimer: Use it at your own risk!!! Writing this topic for learning and knowledge sharing purpose only. You must own root privileges (and authority) on the system where you are trying or applying this topic. What is an init…
If you are a Beginner in Linux, this post will help you to learn Linux commands in just 3 simple steps. Nowadays most of the Linux flavored desktop like Ubuntu, Mint, Fedora, Suse etc. are coming with very interactive user friendly graphical user interface (GUI). Using Linux GUI is similar to use other graphical user…
The use of IPSEC transport mode for server to server communication is one of the best solutions to provide authentication, integrity, access control, and confidentiality. IPSEC is built into to the Linux kernel, in other words there is no daemon running in the background. IPSEC does not require port-forwarding; some people elect to use SSH,…
A chroot on Unix operating systems is an operation that changes the apparent root directory for the current running process and its children. A program that is run in such a modified environment cannot name (and therefore normally not access) files outside the designated directory tree. The term “chroot” may refer to the chroot(2) system…
There are many way find the Linux Distribution Name and Version, but my favorite to find CentOS/RedHat/Fedora distribution name and version is to read from /etc/redhat-release file. In CentOS 6.5, /etc/redhat-release file contain following contents: # cat /etc/redhat-release CentOS release 6.5 (Final To find out distribution name, use command: awk ‘{print $1}’ /etc/redhat-release And to…
In /var/lock/subsys/ directory, there are various files like network, iptables, ip6tables, sshd, rsyslog etc. all these files are the lock files created by their init scripts. Most of these files may be empty. These files play the important role in Linux startup and shutdown process. When a service is started through an init script, a…
I tried various Linux ISO to USB software like UNetbootin, liveusb-creator, Universal-USB-Installer etc to create CentOS 6 (take a look at new look of CentOS website) bootable USB/pendrive. But all have some problems or limitations which force me to use ISO2USB software, which help me to meet my need. Requirement Create a CentOS 6 bootable…
I got most visitors from U.S., thanks to my U.S. visitors. After that Indian visitors make a good figure, special thanks to them also. I am expecting more visits from them. The WordPress.com stats helper monkeys prepared a 2013 annual report for this blog. Here’s an excerpt: Madison Square Garden can seat 20,000 people for…
LibreOffice 4 is launched and I was very exited to install it on my CentOS 6. It was really a good experience to install and use it. I am very happy to see that its performance is enhanced a lot. Documents are opening very fast than the earlier versions. I would like to share its…
PAM Radius Module allows any PAM-capable machine to become a RADIUS client for authentication and accounting requests. The actual authentication will be performed by a RADIUS server. The freeradius can be used for radius server. Download the PAM Radius Module To download the PAM Radius module, click here. Installing & configuring PAM Radius Module To…
A very happy new year Thanks to all my friends and followers. The WordPress.com stats helper monkeys prepared a 2012 annual report for this blog. Here’s an excerpt: 4,329 films were submitted to the 2012 Cannes Film Festival. This blog had 38,000 views in 2012. If each view were a film, this blog would power…
I wondered when I had to find the USB device name in Linux using shell script (shell command), it was little tricky, specially in case of UDEV. You can use different methods to get this like using udevinfo command, from sysfs, from /var/log/messages. Using udevinfo: for DEV in /dev/sd*; do udevinfo -q env -n $DEV…
Windows vs Linux Windows uses FAT and NTFS as file systems, while Linux uses a variety of file systems. Unlike Windows, Linux is bootable from a network drive. In contrast to Windows, everything is either a file or a process in Linux. Please see one of my earlier post What “Everything Is a File” Means on Linux.…
Ubuntu released the second and final beta of Ubuntu 12.10 version, code name “Quantal Quetzal”, just two days before. It is a development release, the Ubuntu developers are moving quickly to bring an absolute latest and greatest software. From the release announcement “The Ubuntu team is pleased to announce the final beta release of Ubuntu…
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