For those not familiar with Linux and the Bash shell, the reason this command is so deadly can be broken down into its three parts. “rm” is the command for removing or deleting files. “-rf” contains the additional commands for recursive and force. In combination, this causes all files, folders, and subfolders to be removed, without providing any prompt for the user, even those which are write protected. Finally, “/” represents the root location of the file system, where all files and folders are stored and where the command will look for files to delete. Often usage of this command is restricted or generates a warning on modern Linux systems as, should it be executed, everything will be deleted.
This danger made it an obvious choice to try out on Windows 10’s Bash shell though you would hope it was tried from the safety of a virtual machine or throwaway installation. Fortunately (or unfortunately), this command doesn’t cause anywhere near the damage it does to Linux, although the Bash terminal itself is not so lucky, being reduced to a useless black window when started up.
Windows isn’t fully safe from misuse of the Bash shell, as if you run the terminal as administrator and target the /mnt/c directory, the C drive can be deleted. Although, with the lengths you have to go to in order to wipe your operating system, if it happens then it’s likely your own fault, and really, it’s no more dangerous than the command line already in Windows.
QNAP’s newest server, the TDS-16489U, is an amazing one that sets itself apart from the rest in so many ways. I want one so badly even though I have absolutely no need for this kind of power. This must be how a normal person feels when they see a Bugatti Veyron. But let us get back to the new QNAP dual server.
The TDS-16489U is a powerful dual server that’s both an application server and storage server baked into on chassis for simplicity and effectiveness. It is powered by two Intel Xeon E5 processors with 4, 6, or 8 cores each while supporting up to 1TB DDR4 2133 MHz memory with its 16 DIMM slots. These are already some impressive specs, but this is just where the fun begins.
The dual server has 16 front-accessible drive bays for 3.5-inch storage drives as well four rear-facing 2.5-inch drive bays for SSD cache. Should this not be enough, then you can expand that further by use of NVMe based PCI-Express SSDs too. The system has three SAS 12 Gb/s controllers built-in to couple it all together.
There are just as many connection options as there are storage options in the TDS-16489U. It comes with two normal Gigabit Ethernet ports as well as four SFP+ 10Gbps ports powered by an Intel XL710. Should that not be enough, then you can use the PCI-Express slots to expand with further NICs of your choice. The system supports the use of 40 Gbps cards too. It also comes with a dedicated IPMI connection besides the normal networking. The PCI-Express x16 Gen.3 slots can also be used with AMD R7 or R9 graphics cards for GPU passthrough to virtualization applications. A true one-device solution for applications, storage, and virtualization.
The TDS-16489U combines outstanding virtualization and storage technologies as an all-around dual server. With Virtualization Station and Container Station, computation and data from the guest OS and apps can be directly stored on the TDS-16489U through the internal 12Gb/s SAS interface. Coupled with Double-Take Availability to provide comprehensive high availability and disaster recovery, backup virtual machines can support failover for the primary systems on the TDS-16489U whenever needed to enable data protection and continuous services. QNAP Virtualization Station is a virtualization platform based on KVM (Kernel Virtual Machine) infrastructure. By sharing the Linux kernel, GPU passthrough, virtual switches, VM import/export, snapshot, backup & restoration, SSD cache acceleration and tiered storage.
“Software frameworks for Big Data management and analysis like Apache Hadoop or Apache Spark can be easily operated on the TDS-16489U using virtual machines or containerized apps, and with Qtier Technology for Auto Tiering the TDS-16489U empowers Big Data computing and provides efficient storage in one box to help businesses gain further insights, opportunities and values,” said David Tsao, Product Manager of QNAP.
With all the above, we shouldn’t forget that it still also runs QNAP’s QTS 4.2 operating system that provides everything you know and love from that. Included is the comprehensive virtualization applications that we’ve also seen on our consumer models, but this is where you truly can take advantage of what QNAP created and run multiple Windows, Linux, Unix, and Android-based virtual machines on your NAS. All the backup solutions and failover, from local to other NAS or the cloud. You can do it all. Share files to basically any device anywhere is made as easy as possible.
Should you still not have enough storage in this impressive unit, then you can expand with up to 8 of the QNAP enclosures and reach a seriously impressive 1152 TB raw storage capacity controlled by this single 3U server unit. The CPU power, dual system capabilities, virtualization options and impressive storage option will let you deploy an impressive system with a very tiny size and total cost of ownership compared to traditional setups.
16-bay, 3U rackmount unit
2 x Intel Xeon E5-2600 v3 Family processor (with 4-core, 6-core and 8-core configurations)
64GB~1TB DDR4 2133MHz RDIMM/LRDIMM RAM (16 DIMM)
4 x SFP+ 10GbE ports
hot-swappable 16 x 3.5″ SAS (12Gbps/6Gbps)/SATA (6Gbps/3Gbps) HDD or 2.5″ SAS/SATA SSD, and 4 x
2.5″ SAS (12Gbps) SSD or SAS/SATA (6Gbps/3Gbps) SSD;
When you buy a new PC, it’s almost certain that it’ll be running one of two types of operating systems, Microsoft Windows or Mac OSX. Despite this market dominance, Dell plans to get more of their customers using Linux with its series of “Project Sputnik” laptops that hope to secure a following of their own.
The newest Sputnik laptop from Dell is the XPS 13 Developer Edition and it looks far different from the typical view of Linux, sporting a sleek, thin design. This XPS 13 also brings a number of features that users typically expect from Windows and Mac laptops including a 4k screen, Intel Skylake processors and even Thunderbolt 3 support, all of which are firsts for a Linux laptop. Due to the lack of support for Skylake chips in Ubuntu, the Linux version of the laptop was released later than its Windows-running cousin, which is unfortunate.
Sputnik’s main goal is to bring new laptop technologies to Linux, which will allow it to match most equivalent Windows laptops and has already been in the works for four years. Originally, Sputnik planned to focus on Ultrabook-form laptops and touch screens as the main technologies, both of which were new at the time, but the project has come a long way since then. Dell’s next goal is to incorporate docking technology into the XPS 13 DE as well as continuing to develop the software and drivers that may be required to make use of even higher resolution screens that could feature in future Sputnik laptops.
While Dell’s main focus may always be on the more mainstream Windows laptop market, Project Sputnik is totally unique, making Dell the only major PC manufacturer with such a focus on releasing Linux-running products. Dell even reports that they have seen Mac users moving over to their Sputnik laptops, due to both Linux and OSX being Unix-based making the switch easier than from Windows. While Linux diehards may choose to install their operating system of choice regardless of the laptop, it is hard to deny that a trusted name like Dell throwing their support behind Linux and releasing it pre-installed on a number of their laptops is a bad thing. Will it lead to a Linux revolution? Probably not, but Dell may just get a few extra customers from Linux-fans and converts alike.
Facebook is certainly a phenomenon which has travelled to huge swathes of the globe and, in turn, gained huge adoption. From celebrities being able to instantly update followers regarding their latest escapades to Mr and Mrs Blogs posting various life events, including cat pictures, the tech giant has certainly been a force. But! Did you know Facebook has been around for 46 years? Well, a new bug has been unearthed congratulating many users on reaching the milestone of “46 years of friendship on Facebook”.
As you would expect, this is slightly odd considering the social network has not even been around for 15 years, below is an image to illustrate the notification which many confused users have received. So, what is going on? Facebook has not disclosed the exact cause of the bug but has released the following statement.
“We’ve identified this bug and the team’s fixing it now so everyone can ring in 2016 feeling young again.”
There is speculation that the bug originates from Unix, let me explain, the aforementioned Unix “underlines many of the world’s servers and it keeps time by counting up from zero at one-second intervals from the date with which the clock began, this is also known as the epoch. Therefore, this conveniently happens to be January 1st, 1970 at midnight Greenwich Mean Time, or 46 years ago today going by Eastern Standard Time. Every second from that point on is known as epoch time and thus is why some gadgets may in theory switch to December 31st, 1969.
Has Facebook suffered from its very own Y2K or millennium bug? If it has then it’s been very small considering it has been subsequently rectified at speed. On a side note, even users who are significantly under 46 years of age have also seen this message, perhaps someone at Facebook has been on the New Year drink too soon.
Is it a new shiny rubix cube? It could look like one, but in fact Cuberox is a Kickstarter project that includes 16×16 screens on a waterproof casing, having it powered by Linux and wireless charging.
In terms of specs, the device is said to feature built-in speakers, multicolored smart backlit technology, wireless connectivity and charging, all encased with a waterproof seal.
The device has currently surpassed the $35,000 mark for its ultimate $150,000 goal and has less than 30 days to go. More information on the device and project can be found over at Kickstarter.
Remember that scene from ‘Jurassic Park with young Lex hacking the computer system? Well if you if you do, you might have remembered the weird graphical file system that Lex used on the “UNIX system” SGI workstation. That file system is now yours to hack too in a new video game called ‘I Know This’.
The game basically turns the operating system seen in the movie into a playable game. It’s essentially a file system maze that you need to work your way through with the help of a Microsoft Clippy look-a-like. The aim is to weave through the maze finding nodes in the filesystem which can be ‘hacked’. The hacking essentially involves hitting as many keys on your keyboard at once.
For the first time ever, Apple has released an automatic security update for iMacs and Macbooks. The update is designed to patch the recently-discovered security vulnerability CVE-2014-9295, which affects OS X and other Linux and Unix distributions.
Apple spokesperson Bill Evans told Reuters that the update is “seamless” and doesn’t require a system restart.
The security vulnerability was revealed last week by the US Department of Homeland Security and the Carnegie Mellon University Software Engineering Institute. The bug means hackers could exploit a fault in a system’s Network Time Protocol (NTP) for gain access to a computer remotely.
“Apple’s proactive steps to automatically remediate this particular vulnerability shows the need to quickly patch remotely exploitable vulnerabilities,” according to Tripwire security analyst Ken Westin. “However, the use of Apple’s automatic deployment tool is not without risks, as even the simplest update can cause problems for some systems. In this case the update may have been so minor the risk of affecting other applications and processes was minimal.”
Westin advises anyone worried about the auto-update that “If you have a Mac system where an automatic update might introduce a problem — or you are the paranoid type — it can be disabled by going to the Apple Menu > System Preferences > App Store and unchecking Install system data files and security updates.”