Articles about Linux

A security vulnerability discovered in numerous Linux distros potentially puts millions of users at risk. CVE-2016-4484 (Cryptsetup Initrd root Shell) affects the Cryptsetup script that is used to unlock partitions encrypted with LUKS (Linux Unified Key Setup).

The flaw means that it is possible for a hacker to access, change or delete data on the hard drive, and it is not even necessary to have physical access to exploit the vulnerability in every circumstance. But the worrying thing is just how easy the problem is to exploit.

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As great as the Raspberry Pi is -- and let's be honest, all of the devices in that family are excellent, especially for the money -- it’s not the only such device available to buy, and some of the rival systems are arguably better as they come with Wi-Fi built-in, and other tricks, such as the ability to double as a wireless router, run Android, or display on-board scrolling messages.

While there are plenty of pricier (and therefore more powerful) options available, I’ve focused on the more affordable choices here -- ones that match, or better, the Raspberry Pi for value and will do everything you'd expect from them, and more.

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Google is actively pushing websites to embrace HTTPS, going as far as to warn Chrome users when they visit a page that can transmit sensitive data over the unsecured HTTP protocol. The search giant hopes that this will speed up HTTPS adoption, and to help us keep track of how things evolve it has updated its Transparency Report to reveal how HTTPS usage is increasing among Chrome users.

Google says that the majority of pages that Chrome users access on desktops are now loaded via HTTPS, and two thirds of their time is spent on pages loading the secure communications protocol. The platform with the highest rate is Chrome OS, which is approaching the 75 percent mark.

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Last month, Canonical released a beta of Ubuntu Core 16. This is not a typical Linux distribution, but instead, one that is focused on Internet of Things and the cloud. What makes the operating system particularly interesting is the use of "Snaps" -- an ingenious modular way of handling software. It combines applications and dependencies into one convenient package.

Today, Ubuntu Core 16 achieves final release status. You can download it immediately for free for PC, Raspberry Pi, and more. With all of the IoT-related botnet news nowadays, this is arriving at the perfect time.

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Raspberry Pi has taken the world by storm, and inevitably there are now lots of similar, rival computers vying for attention, often offering something different in order to stand out from the crowd. Omega2, for example, is a $5 Raspberry Pi rival, with built-in Wi-Fi and storage.

VoCore2’s unique selling points are size -- it can fit on a coin -- and versatility. It can be used as a Linux-based computer with Wi-Fi, or as a fully functional wireless router. It’s incredibly affordable too.

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Finding the perfect Linux-based operating system or desktop environment can be a very long journey. Hell, some folks chase the dream forever, sometimes never settling on just one. This is because there are just too many wonderful choices. Even though I love GNOME, for instance, I sometimes find myself tempted by something different.

A Linux distro that always interests me is Bodhi. This Ubuntu-based operating systems is designed to be lightweight, meaning even those with old hardware can have a solid experience. Much of this is thanks to the use of the Moksha desktop environment, which is a fork of the older Enlightenment E17. The DE isn't just light on resources, but quite functional and beautiful too. Today, Bodhi 4.0.0 sees stable release, with the newest version of Moksha, 0.2.1.

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The new Apple MacBook Pro looks to be a wonderful laptop, but understandably, not everyone is impressed. The "Pro" moniker literally means "professional", and there are some concerns from that segment. Some photographers, for instance, will be very hurt and disgusted by the lack of an SD card slot. More importantly, the computer maxes out at 16GB of RAM -- many pro users want 32GB or more, which is not possible on the new machine, sadly.

While you might expect some of these disappointed Apple loyalists to turn to a Windows machine -- and I'm sure some will -- some are turning to an unexpected alternative -- Linux. You see, immediately after the Apple Keynote, famed Ubuntu laptop and desktop seller, System76, saw a huge jump in traffic from people looking to buy its machines. The traffic was so intense, that it needed to upgrade servers to keep up!

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Linux Mint is a brilliant operating system. Based on Ubuntu, it aims to make Linux accessible to everyone. You know what? It succeeds. The wonderful Cinnamon desktop environment is a no-nonsense approach to computing, making it easy for a home user to complete their tasks.

Today, the upcoming Linux Mint 18.1 (based on Ubuntu 16.04 LTS) gets an official code-name -- "Serena". What does this female name mean? According to Behind the Name, it is "from a Late Latin name which was derived from Latin serenus meaning 'clear, tranquil, serene'. This name was borne by an obscure early saint. Edmund Spenser also used it in his poem 'The Faerie Queene' (1590)".

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Dirty COW is a privilege escalation vulnerability found in the Linux kernel. Although it’s been there for nine years, it’s only recently been identified.

The vulnerability, which affects the 'copy-on-write' (COW) mechanism, can be found in most Linux distros, and since the Raspberry Pi runs Linux, it too is at risk.

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Linux-based desktop operating systems are better than Windows because they are free, right? Whoa there, folks. Neither are necessarily better or worse -- it really depends on your needs. Cost-free operating systems, such as Ubuntu and Fedora, are definitely great for home consumers looking to breathe new life into old machines. With that said, the benefits of Linux extend beyond money and cost-savings.

Linux being free is sort of misleading when it comes to business use too. While a small business with a few employees can sometimes get by without paying for support, larger companies would be crazy to go it entirely alone -- paid support is a necessity for success. Today, Canonical releases a well-designed infographic that explains the benefits of its paid support, called 'Ubuntu Advantage'.

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The gift and curse of desktop Linux-based operating systems is the ability to change the desktop environment. On one hand, having the choice to pick your favorite user interface, such as Unity, GNOME, or KDE Plasma, can be a huge positive. On the other, this also creates fragmented experiences between Linux users.

If you are a fan of KDE Plasma, there are plenty of quality distributions available. The overall best for home users, however, is the wonderful Netrunner. You'd be hard-pressed to find another KDE-focused distro with such care and focus on the user experience. Today, a specialized version of the Debian-based operating system, called Netrunner Core, becomes available for download. This pared-down OS is designed for lower-end systems, and there are images for both x86 and ARM.

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A vulnerability discovered in the Linux kernel has been present for nine years, and users are being advised to seek out and install a patch as soon as they possibly can. Dubbed Dirty COW, the bug is a privilege escalation vulnerability which can be found in just about every Linux distro out there.

Discovered by security expert Phil Oester, Dirty COW is described as one of the most serious bugs of its type ever found in Linux. Assigned the code CVE-2016-5195, there is evidence that the vulnerability has been exploited and a website set up to alert people to the problem advises that the "security community should deploy honeypots that entrap attackers and to alert about exploitation attempts".

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Linux 4.0 introduced a wonderful feature for those that need insane up-time -- the ability to patch the kernel without rebooting the machine. While this is vital for servers, it can be beneficial to workstation users too. Believe it or not, some home users covet long up-time simply for fun -- bragging rights, and such.

If you are an Ubuntu 16.04 LTS user (with generic Linux kernel 4.4) and you want to take advantage of this exciting feature, I have good news -- it is now conveniently available for free! Unfortunately, this all-new Canonical Livepatch Service does have a catch -- it is limited to three machines per user. Of course, home users can register as many email addresses as they want, so it is easy to get more if needed. Businesses can pay for additional machines through Ubuntu Advantage. Want to give it a go? Read on.

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The Raspberry Pi computers are extremely popular. It isn't hard to see why people like them -- they are small, inexpensive, and very useful for various projects. While they are arguably under-powered for use as, say, a full-time workstation, the diminutive machines aren't really meant for that.

If you do want to use it as a workstation, however, I have good news. Fedora 25 Beta Workstation is now available for both the Raspberry Pi 2 and Raspberry Pi 3. In addition to the Workstation image, Fedora 25 Beta Server is available too. Owners of ARMv6-powered Pi models, such as the Pi Zero, are out of luck, as the operating system will not be made available for them.

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Linux distributions and silly names go together like peanut butter and jelly. For whatever reason, the maintainers of these operating systems seem to enjoy having fun with what they call them -- some argue it is childish. Even Google -- a billion dollar company -- uses sugary dessert names for the Linux-based Android operating system.

One of the most well-known Linux distributions to use funny names is Ubuntu. It famously uses the convention of an adjective and a lesser-known animal, each starting with the same letter. The letter is chosen sequentially by alphabet. For example, Ubuntu 16.10 uses the letter "Y" -- "Yakkety Yak". The next version of the operating system will use the letter "Z". While many folks hoped for "Zebra", that would be too obvious. Instead, Canonical has chosen "Zesty Zapus". Don't know what a zapus is? Neither did I. It is apparently a type of jumping mouse. The selection was not made at random, however, as the company has an explanation for the decision.

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