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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 […]

Smart appliances, including a refrigerator,  used in an IoT-based spam attack

Smart appliances, including a refrigerator, used in an IoT-based spam attack

A report by Proofpoint Inc., a security-as-a-service provider, has revealed a spam attack that involved so-called Internet of Things, everyday devices that are Internet aware. You knew it wasn’t going to be long before all those “smart” appliances became tools in the hands of hackers. The spam attack involved simple everyday smart devices, from home-networking routers to at least one […]

NPM creator starts a company to offer npm-related products and services

NPM creator starts a company to offer npm-related products and services

The creator of NPM has started a company called NPM, Inc. that he said will focus on offering products and services related to the popular package manager for Node.js. Node.js, or simply Node, was created by Ryan Lienhart Dahl and is a software platform that provides “an easy way to build scalable network programs.” NPM is the official package manager […]

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 […]

In very simple terms, here’s what ESB means

In very simple terms, here’s what ESB means

I like very simple tutorials that even a novice will have fun reading and understanding, and I try to tailor the ones I write here along those line. That’s why I’m sharing this article with you. It took a subject I knew a bit already, but couldn’t really explain to anybody in a manner they could comprehend, and renders it […]

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 […]

Secret NSA technology that can hack computers not connected to the Internet

Secret NSA technology that can hack computers not connected to the Internet

For the really paranoid, for the more security-conscious out there, and for those keeping track of the capabilities of the NSA to spy and track, this will really blow your mind. According to a New York Times report, the NSA has a secret technology that enables it to hack into and mess with data on computers that are not even […]

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 […]

Italian govt agencies to consider Free Software before commercial software

Italian govt agencies to consider Free Software before commercial software

The Italian Digital Agency has recommended that its government’s agencies consider Free Software alternatives before purchasing licenses for commercial software. Recommendations like this tend to come from European governments, never from government agencies over here in our America, even though it will save a ton of money. But a recommendation is one thing, abiding by it, is another. It’s all […]

DA223 HQL: Acer’s all-in-one Android PC has a Snapdragon 600 inside

DA223 HQL: Acer’s all-in-one Android PC has a Snapdragon 600 inside

The DA223 HQL is the newest Android all-in-one computer announced at the just-concluded 2014 edition of the International Consumer Electronics Show (CES) in Las Vegas, Nevada. There have been similar all-in-one computers from other manufacturers at the event, most notably from Lenovo and ASUS. (See Transformer Book Duet offers Windows and Android in dual-boot mode and Lenovo N308 All-in-One Android […]

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 […]

Kali Linux 1.0.6 released. Cryptsetup has “nuclear option” integrated

Kali Linux 1.0.6 released. Cryptsetup has “nuclear option” integrated

The latest edition of Kali Linux, Kali Linux 1.0.6, has been released. Kali Linux is a Linux distribution based on Debian Unstable, and designed for hacking and penetration testing. It comes loaded with the best Free and Open Source (FOSS) hacking applications available. Kali Linux 1.0 is the successor to BackTrack Linux 5 (see BackTrack 5 or Kali Linux 1.0). […]

Zorin OS Core 8 screen shot preview

Zorin OS Core 8 screen shot preview

Zorin OS 8 Core Release Candidate was made available for download and testing about a week ago. This of course is a pre-release version of what will become Zorin OS 8. This is also the second Zorin OS-related article appearing on this website. The first was about Zorin OS 6 (see Zorin OS 6 Core preview). Zorin OS 8 Core […]

A Kali Linux cryptsetup patch that can “nuke” an encrypted disk

A Kali Linux cryptsetup patch that can “nuke” an encrypted disk

A recent article titled Emergency Self Destruction of LUKS in Kali revealed an ongoing attempt to add a “nuke” option to cryptsetup, the utulity used to manage disk encryption. The idea is very simple. But before I get to the gist of the article, here’s how setting up full disk encryption protects your data from authorized unauthorized access. When a […]

A $204,000 data-privacy violation fine against a company worth $381 billion!

France has just handed out a fine against Google for failing to comply with the country’s Data Protection Act. What’s the fine amount? A measly USD $204,000 (€150,000)! That’s against a company whose market cap is more than USD $381 billion. At current share prices, that’s the equivalent of 178 Google shares. With a fine like that, no wonder Google […]

Light Table is now open source and hosted on GitHub

Light Table is an “interactive IDE that lets you modify running programs and embed anything from websites to games.” The entire code base has been released under the GNU General Public License and hosted on GitHub. From the official news release: … Light Table is taking a huge step forward – every bit of its code is now on Github […]

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 […]