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Category: Tutorials/Tips

4 things to do after installing Ubuntu 14.04

4 things to do after installing Ubuntu 14.04

So now that you’ve installed your new copy of Ubuntu 14.04, there must be at least one default setting that you would like to change. At least one. On my new installation, I found four of those default settings that when modified, made using Unity, the Ubuntu desktop, a little bit more user-friendly. This post show what those settings are […]

How to install Anaconda 1.9 in Ubuntu 13.10

How to install Anaconda 1.9 in Ubuntu 13.10

This short article shows how to install Anaconda 1.9 in Ubuntu 13.10. No, it’s not that Anaconda. This Anaconda is a free Python package for large-scale data processing, predictive analytics, and scientific computing. It is developed by Continuum Analytics, and is completely free to download and use. The latest version is Anaconda 1.9. It comes with more than 125 Python […]

GPT disk partitioning guide for Ubuntu 13.10 on a PC with UEFI firmware

GPT disk partitioning guide for Ubuntu 13.10 on a PC with UEFI firmware

This article offers a step-by-step guide on how to create GPT partitions on Ubuntu 13.10 on a computer with UEFI firmware. Because Linux Mint is based on Ubuntu and use the same installer as its parent distribution, it can also be used to create GPT partitions on Linux Mint 16. Before I started on this article, I took a look […]

How to customize Mageia 4 KDE

How to customize Mageia 4 KDE

Mageia 4 has just been released. Screen shots from test installations of the Cinnamon, KDE and GNOME 3 editions have already been published (see Mageia 4 Cinnamon, KDE and GNOME 3 screen shots). A detailed review is in the works. Meanwhile How to customize Mageia 4 KDE offers a few tips that you can use to make your installation of […]

Dual-boot Windows 8 or Windows 7 and Ubuntu 13.10, with Ubuntu on a btrfs filesystem

Dual-boot Windows 8 or Windows 7 and Ubuntu 13.10, with Ubuntu on a btrfs filesystem

This tutorial offers a step-by-step guide on how to dual-boot Windows 8 and Ubuntu 13.10 on a single hard disk drive (HDD), with Ubuntu on a btrfs filesystem. This dual-boot setup is on a system with Legacy BIOS, that is, non-UEFI and using an MBR disk partitioning scheme, which means that GPT is not involved. Because of this, it can […]

How to install Ubuntu 13.10 and Linux Mint 16 on a Btrfs filesystem

How to install Ubuntu 13.10 and Linux Mint 16 on a Btrfs filesystem

This tutorial presents a step-by-step guide on how to install Linux Mint 16 and Ubuntu 13.10 on a Btrfs filesystem. Btrfs is CoW (Copy on Write) filesystem with support for features like read-only and writable snapshots, subvolumes, incremental backups, deduplication, and multiple device support. You may view the complete list of features here. The screen shots used in this tutorial […]

How to protect against image hotlinking in Nginx

How to protect against image hotlinking in Nginx

This short tutorial shows how I configured Nginx to protect against hotlinking of images used in my articles. Protecting against image hotlinking in Nginx is pretty simple, if you know what to do, or know how to google. So if you don’t like my approach, go ahead and google “image hotlink protection in nginx” or something close to that. In […]

How to install Steam Client on Fedora 20

How to install Steam Client on Fedora 20

This tutorial shows how to install Steam on Fedora 20 (install Steam on Fedora 20). Fedora 20 is the latest edition of the popular, multi-purpose Linux distribution. Proprietary or non-free software are not distributed via the official Fedora repositories, so if you must install a non-free software, you’ll have to use a third-party repository. Steam is a non-free software, so […]

Manual full disk encryption setup guide for Ubuntu 13.10 & Linux Mint 16

Manual full disk encryption setup guide for Ubuntu 13.10 & Linux Mint 16

This tutorial presents a step-by-step guide on how to configure full disk encryption manually on Ubuntu 13.10 and Linux Mint 16. It will also work for any other Ubuntu-based distribution, like Linux Deepin. The point of setting up encrypted partitions manually is so that you can create more than the two default partitions (root and swap) created by Ubiquity, Ubuntu’s […]

The best tool for Fantasy Football analytics: Excel or R?

The best tool for Fantasy Football analytics: Excel or R?

In the early days, I used Excel for basic stuff, but I’ve been playing with R for some fun and funky data crunching. It’s a nice tool to know how to use. It can be hard, though, to keep up with all the extensions that are being written and released almost daily. But that’s a good problem to have. And […]

Apply the nuke patch to LUKS cryptsetup in Linux Mint 16 and Ubuntu 13.10

Apply the nuke patch to LUKS cryptsetup in Linux Mint 16 and Ubuntu 13.10

This short tutorial shows how to apply the Kali Linux nuke patch to LUKS cryptsetup in Linux Mint 16 and Ubuntu 13.10. From a physical security and privacy-enhancing perspective, the nuke patch to LUKS cryptsetup is the best news from any distribution so far this year. What the nuke patch gives you, is a cryptsetup command that allows you to […]

Cell security in Apache HBase

Cell security in Apache HBase

Here’s a good article about security in Apache HBase that I think some readers will love. Apache HBase is a non-relational database for Hadoop. The article is written by Andrew Purtell, HBase Committer and member of the Intel HBase Team. Here’s an excerpt: For some time Apache HBase has offered a strong security model based on Kerberos authentication and access […]

Your choice: Cinnamon or MATE

I get a lot of queries regarding the difference(s) between the MATE and Cinnamon desktop environments. And of course such queries tend to come from those new to Linux and Free Software. For the benefit of those class of users, this very brief article summarizes the key difference between these two desktop environments. Nothing technical, just basic stuff that will […]

An attempt to dual-boot Ubuntu 13.10 and Windows 8 on a Lenovo IdeaCenter K450

An attempt to dual-boot Ubuntu 13.10 and Windows 8 on a Lenovo IdeaCenter K450

I had access to a friend’s store-bought (OEM) Windows 8 computer for just one day. The computer is a Lenovo model. Specifically the Lenovo IdeaCenter K450 with a Core i7 processor, 12 GB of RAM, and a 2 TB hard disk drive (HDD). Very powerful machine. It’s the first OEM Windows 8 machine that I’ve had access to, and so […]

How to build your own phone company with WebRTC and Node.js

How to build your own phone company with WebRTC and Node.js

I’m reposting this article because it’s very cool and anybody can try it and probably succeed on their first attempt. the title of the original article is Build your own phone company with WebRTC and a weekend. I added the Node.js part because it a core tool used to make the application happen. I intend to give this a try […]

How to deploy OSSEC across a large network of systems from RPMs

How to deploy OSSEC across a large network of systems from RPMs

OSSEC is a Host-based Intrusion Detection System (HIDS). It is Free Software, made available under the GNU General Public License (version 2). It can do “log analysis, file integrity checking, Windows registry monitoring, centralized policy enforcement, rootkit detection, real-time alerting and active response.” When I was looking for a security solution for my Cloud servers, it was numero uno on […]

Have a Happy Holidays and give GRUB a look to match your mood

Have a Happy Holidays and give GRUB a look to match your mood

Not too long ago, it was January, and in a few days, it will be another month of January. Time really does fly. But what can we do? Go with the flow and be grateful for all that life has brought our way. In that vein, I’d like to thank you and wish you Happy Holidays, if you contribute to […]

GRUB Customizer 4 released. Install it on Ubuntu 13.10 and Linux Mint 16

GRUB Customizer 4 released. Install it on Ubuntu 13.10 and Linux Mint 16

GRUB Customizer 4.0 has been released. Install it on Ubuntu 13.10 and Linux Mint 16. GRUB Customizer is a graphical utility for managing GRUB 2, the boot loader used on most Linux distributions. For both experienced and new users, it can come in handy when and if you need to mess with GRUB. It is the work of Daniel Richter. […]

Logging in by facial recognition on Linux Deepin 2013

Logging in by facial recognition on Linux Deepin 2013

Logging in by facial recognition is a new feature on Linux Deepin 2013, the latest edition of Linux Deepin, a desktop distribution based on Ubuntu Desktop. It presents just one more security layer for the desktop. Though based on Ubuntu, Linux Deepin does not use the Unity desktop. Rather, it uses a new desktop environment built atop GNOME 3 technologies […]

Deepin Terminal features split screens, search and ssh connections

Deepin Terminal features split screens, search and ssh connections

Deepin Terminal is a new custom application from the developers of Linux Deepin, a desktop distribution based on Ubuntu Desktop. It made its debut in Linux Deepin 2013, the distribution’s latest edition. See Linux Deepin 2013 screen shot tour. Deepin Terminal is the latest attempt to give the Linux terminal a new face and better features. The other attempt is […]