Category Archives: Linux (Ubuntu)

How to Prevent & Disable Mac OS X From Sleeping From the Command Line Terminal Application

How to Prevent & Disable Mac OS X From Sleeping From the Command Line Terminal Application

I‘m running a process to complete backup and covert images in Mac OS X laptop. I do not wish to disable sleep manually from my OS X power options (Energy Saver). How do I temporarily prevent a Mac from sleeping while my process is still active in Mac OS X Unix operating systems? How can I prevent the system from sleeping temporarily from the command prompt?
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How To Install pfSense Firewall On a Hard Disk Drive With Serial Console Support On the Soekris net5501 Router

How To Install pfSense Firewall On a Hard Disk Drive With Serial Console Support On the Soekris net5501 Router

I‘m looking to install pfSense 2.2.x and I would like to install it on a hard disk drive rather than CF (compact flash). How can I install hard disk install via serial console on the soekris net5501 server?
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Ubuntu 15.04 LAMP server tutorial with Apache 2, PHP 5 and MariaDB (instead of MySQL)

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Ubuntu 15.04 LAMP server tutorial with Apache 2, PHP 5 and MariaDB (instead of MySQL)
LAMP is short for Linux, Apache, MySQL, PHP. This tutorial shows how you can install an Apache 2 webserver on an Ubuntu 15.04 server with PHP 5 support (mod_php) and MySQL / MariaDB. Additionally, I will install PHPMyAdmin to make MySQL administration easier. A LAMP setup is the perfect basis for CMS systems like Joomla, WordPress or Drupal.

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How to connect via Bluetooth in GNOME on Linux

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How to connect via Bluetooth in GNOME on Linux
Connecting to a Bluetooth device is essential for file transferring, audio sharing (Bluetooth speakers), and shared network connectivity (smartphones). GNOME settings panel is offering a quick way to do this in simple steps. Here’s a guide on how to do it.

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How to prepare for bad weather on Linux

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How to prepare for bad weather on Linux
Severely bad weather is one of the few things that can still awe people while causing large-scale catastrophes. Especially if you live in the US, you most likely have witnessed a dangerously large storm during the tornado season. Preparing for those situations is crucial for the safety and survival of you and your family, and while you can always keep an eye on the news for weather reports, you can also use your Linux system to draw conclusions yourself. There are a couple of free software tools that offer more “specialized” information that goes well beyond air speed and temperature.

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Docker: Installation and Basic usage on Ubuntu 15.04

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Docker: Installation and Basic usage on Ubuntu 15.04
Docker is an open-source project that provides an open platform for developers and sysadmins to build, package, and run applications anywhere as a lightweight container. This tutorial shows the installation of Docker on Ubuntu 15.04 and the first steps to get started with Docker container management.

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How to get Oracle Virtual Box 5.0 installed on (Ubuntu) Linux

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How to get Oracle Virtual Box 5.0 installed on (Ubuntu) Linux
Oracle’s Virtual Box is one of the easiest to use virtual machines that run under Linux. Although we Linux users have reasons not to use Oracle’s products, the particular piece of software is maybe the best choice we can make in that area and at least it’s open source. If you want to use other free software alternatives to Oracle’s VM, you can check VMware Workstation, QEMU, or GNOME Boxes (currently works only on Fedora).

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How to monitor your system performance on (Ubuntu) Linux

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How to monitor your system performance on (Ubuntu) Linux
Monitoring your Linux system is essential in order to be able to improve its performance, locate the source of a problem and take more targeted corrective actions. As is always the case with Linux, there are quite a few tools and many different ways you can utilize to monitor different aspects of your system’s performance. On this simple guide, we will take an overall look on how to install and run three monitoring tools on an Ubuntu Linux system.

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Vector Algebra on Scientific Linux 7.1 with Python Script: Part 1

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Vector Algebra on Scientific Linux 7.1 with Python Script: Part 1
In this tutorial, we will discuss the vector algebra and corresponding calculations under Scientific Linux. For our purpose, I have chosen Python as the programming language for its simplicity and power of calculation. Any Linux distribution has by default a Python editor / compiler which is invoked through a terminal window. Let’s go over some concepts of vector algebra.

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How to sync your documents with Google Drive on Ubuntu

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How to sync your documents with Google Drive on Ubuntu
Google Drive is a popular online service that allows for the easy sharing and collaborative editing of documents (word files or spreadsheets). Under the most usual day to day circumstances, the GDrive tool is very useful serving as a cloud space and/or a readily available online collaboration platform. On this guide, we will see how you can install an open source client tool for the service named Grive, and how to set it up according to your needs.

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