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LFCS - Linux Foundation Certified SysAdmin - Exam Preparation Guide

15 ‘pwd’ (Print Working Directory) Command Examples in Linux

15 ‘pwd’ (Print Working Directory) Command Examples in Linux
For those working with Linux command Line, command ‘pwd‘ is very helpful, which tells where you are – in which directory, starting from the root (/). Specially for Linux newbies, who may get lost amidst of directories in command Line Interface while navigation, command ‘pwd‘ comes to rescue. What is pwd? ‘pwd‘ stands for ‘Print Working Directory‘. As the name states, command ‘pwd‘.....
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Google Chrome 39 Released – Install on RHEL/CentOS 7/6 and Fedora 20-15

Google Chrome 39 Released – Install on RHEL/CentOS 7/6 and Fedora 20-15
Google Chrome is a freeware web browser developed by Google Inc. Google Chrome team proudly announced the release of Google Chrome 39 on November 18, 2014. The actual version is 39.0.2171.65 for Linux/Mac OS X and Windows operating system. This new version bundled with a number of exciting fixes, features and improvements, including: 64-bit support for Mac A number of new apps/extension APIs.. Lots of under the hood changes for stability and performance. If.....
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Google Chrome Browser 39 Released – Install on Debian, Ubuntu and Linux Mint

Google Chrome Browser 39 Released – Install on Debian, Ubuntu and Linux Mint
Google Chrome Browser developed by Google Inc. is a freeware web browser licensed under Google Chrome Terms of Service. As per StatCounter (as of July 2014) statics and trends Google Chrome Browser has a 45% usages of globally and we can say it’s not ideal alternative browser but it’s the best and widely used internet browser, which uses the WebKit layout engine. The Google chrome is a popular browser because of it’s simplicity,.....
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Setting Up Standard Linux File Systems and Configuring NFSv4 Server – Part 2

Setting Up Standard Linux File Systems and Configuring NFSv4 Server – Part 2
A Linux Foundation Certified Engineer​ (LFCE)​ is trained to set up, configure, manage, and troubleshoot network services in Linux systems, and is answerable for the design and implementation of system architecture and solving everyday related issues.​ Introducing The Linux Foundation Certification Program (LFCE). In Part 1 of this series we explained how to install a NFS (Network File System) server, and set the service to start automatically.....
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Setting Up RAID 10 or 1+0 (Nested) in Linux – Part 6

Setting Up RAID 10 or 1+0 (Nested) in Linux  – Part 6
RAID 10 is a combine of RAID 0 and RAID 1 to form a RAID 10. To setup Raid 10, we need at least 4 number of disks. In our earlier articles, we’ve seen how to setup a RAID 0 and RAID 1 with minimum 2 number of disks. Here we will use both RAID 0 and RAID 1 to perform a Raid 10 setup with minimum of 4 drives. Assume, that we’ve some data saved to logical volume, which is created with RAID 10. Just for an example, if we are saving a data.....
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How to Create GUI Applications Under Linux Desktop Using PyGObject – Part 1

How to Create GUI Applications Under Linux Desktop Using PyGObject – Part 1
Creating applications on Linux can be done using different ways, but there are a limited ways of doing, so using the simplest and the most functional programming languages and libraries, that’s why we’re going to have a quick look about creating applications under the Linux desktop using the GTK+ library with Python programming language which is called “PyGObject”. PyGObject uses the GObject Introspection to create binding for programming.....
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Growing an Existing RAID Array and Removing Failed Disks in Raid – Part 7

Growing an Existing RAID Array and Removing Failed Disks in Raid – Part 7
Every newbies will get confuse of the word array. Array is just a collection of disks. In other words, we can call array as a set or group. Just like a set of eggs containing 6 numbers. Likewise RAID Array contains number of disks, it may be 2, 4, 6, 8, 12, 16 etc. Hope now you know what Array is. Here we will see how to grow (extend) an existing array or raid group. For example, if we are using 2 disks in an array to form a raid 1 set, and in some.....
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Installing and Configuring FreeNAS (Network-attached Storage) – Part 1

Installing and Configuring FreeNAS (Network-attached Storage) – Part 1
FreeNAS is an open source network-attached storage (NAS) operating system based on BSD and the ZFS filesystem with integrated RAID support. FreeNAS operating system is totally based on BSD and can be installed on virtual machines or in physical machines to share data storage via a computer network. Using FreeNAS software you can easily build your own centralized and easily accessible data storage at home and same can be managed via a dedicated web.....
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