linux

How to install LAMP stack (Apache, MySQL (MariaDB) & PHP) on CentOS / RHEL v7.x

Following are the instructions for installing LAMP stack onto CentOS 7 or RHEL 7. LAMP stack commonly refers to a Linux installation of Apache, MySQL and PHP, which allow you to run full fledged web server with support for scripts and databases on a Linux server. In our case we’ll be installing: Apache HTTP Server vs 2.4, PHP 5.4.16 programming language and MariaDB  5.5.37 Server (a community-developed fork of the MySQL relational database management system).

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How to run Android 4.2.2 emulator with Google Play App Store on Windows, Linux, OS X or Solaris

There are many instructions for creating Android emulator on Windows, Linux, OS X or Solaris, but I couldn’t find any to show how to have a fully functional Android operating system along with a full functioning Google Play App Store. This basically allows you to run all Android apps from Google Play store on any other popular operating system, including those apps you have purchased from Google Play. Following instructions will walk you through setting this up. [Read more…]

How to fix the “Shellshock Bash” vulnerability on CentOS & Red Hat

Simple instructions on how to fix the “Bash Software Bug” (Shellshock Bash Vulnerability) and the biggest threat since “Heartbleed”, using open-source command-line package-management utility YUM (yellowdog updater). Below instructions will work on CentOS & Red Hat. Other Linux systems such as Scientific Linux, Yellow Dog Linux, Oracle Linux and those using the RPM Package Manager currently do not have the patch available (at the time of this article  – 24.Sept.2014) but that should be coming soon. In any case instructions posted below will work for these other Linux distros as soon as the patch is available.

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What are the five fastest, or most powerful, computers in the world? (December 2013)

For the purposes of this article, I’ll be referring to most powerful  non-distributed computers in the world. Rank is based on a Rmax value (score measured using the LINPACK benchmark suite). Measurements are in petaflops (quadrillions of floating point operations per second). Following list is a current rank as of November/December 2013.

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How to run Citrix ICA Client on Linux Mint 14 “Nadia” 64-bit

To execute Citrix ICA Client on Linux Mint 14 “Nadia” 64-bit isn’t something you’ll get working right out of the box.
If you try to run a shortcut from your Citrix page, you’ll be most likely treated to following error:
SSL error. Contact your help desk with the following information: You have not chosen to trust”/C=US/ST=/L=/O=Equifax/OU=Equifax Secure Certificate Authority/CN=”, the issuer of the server’s security certificate ((SSL error 61). [Read more…]