Tag Archives: ubuntu

Change Shell To Bash

Change Shell To Bash

How do I switch from a ksh shell to bash on Linux or Unix system? How to change shells on Unix-like system?
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Talos Secure POWER8 Linux Workstation With Fully Open Source Firmware

Talos Secure POWER8 Linux Workstation With Fully Open Source Firmware
Raptor Engineering is working and crowdfunding a high-end power8 based desktop computer with zero proprietary firmware blobs in the Talos Secure Workstation. Traditionally IBM, Oracle(Sun), Intel/AMD and others ruled this market segment. But now there is competition to Intel for a desktop computer.
talos openpower
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Why HTTPS for Everything?

Why HTTPS for Everything?

HTTPS enables privacy and integrity by default. It is going to be next big thing. The internet’s standards bodies, web browsers, major tech companies, and the internet community of practice have all come to understand that HTTPS should be the baseline for all web traffic. Ultimately, the goal of the internet community is to establish encryption as the norm, and to phase out unencrypted connections. Investing in HTTPS makes it faster, cheaper, and easier for everyone.

Free SSL certificate for all

You can get your free ssl cert with Let’s Encrypt project. It is a certificate authority that launched on April 12, 2016 that provides free X.509 certificates for Transport Layer Security (TLS) encryption. See how to configure and use Let’s Encrypt TLS on a Ubuntu or Debian Linux:

In this tutorial, I will explain how to use Let’s Encrypt to install a free SSL certificate for Nginx web server along with how to properly deploy Diffie-Hellman on your nginx server to get SSL labs A+ score.

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Awesome Git Commands & Best Practices Cheat Sheet For Sysadmin and DevOPS

Awesome Git Commands & Best Practices Cheat Sheet For Sysadmin and DevOPS

git-cheat-sheetGit is a version control system (VCS) for tracking changes in computer files and coordinating work on those files among multiple people. It is primarily used for software development, but it can be used to keep track of changes in any files.

This cheat-sheet is useful for both sysadmins and programmers/devops peeps. You can download larger version by visiting this url.

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A list of online tutorials and resources to help you learn bash shell

A list of online tutorials and resources to help you learn bash shell

Bash (Bourne-Again SHell) is a Linux and Unix-like system shell or command language interpreter. It is a default shell on many operating systems including Linux and Apple MacOS X. Shell scripts are a fundamental part of the Unix programming environment.

Here are a list of tutorials and helpful resources to help you learn bash scripting and bash shell itself. You should read the following documents if you are interested in learning the basics of shell scripting.

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How to change the ssh port on Linux or Unix server

How to change the ssh port on Linux or Unix server

I am a new Linux/Unix server admin. How do I change the SSH Port for my Linux or Unix server using command line option?
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How to assign a grep command value to a variable in Linux/Unix

How to assign a grep command value to a variable in Linux/Unix
How do I store grep command output in shell variable? What is the syntax to store the command output into a variable in Linux or Unix? You can use the for any given input files, selecting lines that match one or more patterns. By default the output shown on screen. But, you can store output […]
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Ubuntu Linux Install GNU GCC Compiler and Development Environment

Ubuntu Linux Install GNU GCC Compiler and Development Environment
How do I install GNU/GCC (C and C++) compiler and related tools (such as make, debugger, man pages) collection under Ubuntu Linux operating system using command line options? You need to install following packages on Debian and Ubuntu Linux: build-essential package – Installs the following collection to compile c/c++ program on a Ubuntu Linux including: […]
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