Category: Linux

Posted on by Jean-Luc Aufranc (CNXSoft) - 6 Comments on How To Let Sudo Insult You When You Type the Wrong Password

How To Let Sudo Insult You When You Type the Wrong Password

This is a completely useless post, but it’s possible to configure sudo to return insults instead of the default error message when you type the wrong password. To enable this feature, edit /etc/sudoers (with visudo for example) and change the line:

to :

Open a terminal windows as a normal user, type a command with sudo and input the wrong password. Here are a few examples: $ sudo bash [sudo] password for testman: xxx Are you on drugs? [sudo] password for testman: xxx Maybe if you used more than just two fingers… [sudo] password for testman: xxx Listen, burrito brains, I don’t have time to listen to this trash. [sudo] password for testman: xxx You silly, twisted boy you. [sudo] password for testman: xxx What, what, what, what, what, what, what, what, what, what? [sudo] password for testman: xxx You do that again and see what happens… [sudo] […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Advantech RSB-4210: Freescale i.MX53 Single Board Computer

Advantech RSB-4210: Freescale i.MX53 Single Board Computer

Advantech has just launched the RSB-4210, a fanless and heatsink-less RISC Single Board (RSB) powered by Freescale i.MX53 (Cortex A8) with 512 MB DDR3 and 2 GB NAND Flash. This board can operate in industrial temperature range (-40 to 85° C) and targets industrial control, digital signage, HMI/kiosk, medical, and portable applications. Here are the key features of this board: Freescale ARMCortex-A8 i.MX536 @ 800MHz Supports OpenGL ES 2.0 and OpenVG 1.1 hardware accelerators Supports full HD 1080p video decode and HD 720p hardware video encode Video Output LCD support with resolution up to 1920×1080 (default 800×480) via LVDS connector HDMI VGA Touch, UART, I2C, I2S, SPI, GPIO, USB Supports SATA storage interface and CAN-bus for vehicle applications Dimensions – 146 x 102 x 20 mm Power – 9 ~ 24 V DC with 3-watt power consumption Operating temperature – -40 ~ 85° C If you don’t mind about the […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Zedboard Xilinx Zynq-7000 Community Board is Now Available

Zedboard Xilinx Zynq-7000 Community Board is Now Available

Based in March, I wrote about Xilinx Zynq-7000 Extensible Processing Platform (EPP), a SoC comprises of a Dual Cortex A9 and an FPGA, as well as the corresponding development boards and kits: Xilinx Zynq-7000 EPP ZC702 Evaluation Kit based on Zynq-7020 with all the basic components (595 USD). Xilinx Zynq-7000 EPP Video Kit based on Zynq-7020 with all necessary hardware, software and IP components for the development of custom video applications (1195 USD). Zynq-7000 EPP ZedBoard, a low cost development board for the developers community. At the time, the first 2 (expensive) boards were available, but there was little information about the Zedboard. But yesterday evening, I noticed Zedboard website had a lot more information and we now know details about the board and it is even possible to purchase it. Here are the Zedboard specifications: Processor – Xilinx Zynq-7020 Dual ARM Cortex-A9 MPCore @ 677 MHz Memory 512 MB […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on Linaro 12.05 Release with Kernel 3.4 and Android 4.0.4

Linaro 12.05 Release with Kernel 3.4 and Android 4.0.4

Linaro has just released version 12.05 based on Linux Kernel 3.4 and Android 4.0.4. This release provides lots of improvement for Origen (Samsung Exynos 4) on Android,  further work has been done on big.LITTLE processing and ARMv8 work appears to have started for Ubuntu and Debian. armel vs armhf benchmarks show a massive improvement (up to 15x) when using armhf for povray (3D rendering),. but for most other tests, there is little improvement, and in some rare cases armhf is slightly slower than armel. Here are the highlights of the release: Android Created a stable Google hangout build for Origen Updated DS-5 and gator daemon to 5.10 Stress tests from big.LITTLE testing have been integrated into LAVA Completed big.LITTLE Android tasks Monkeyrunner tests for automating common Android usage have been integrated into LAVA Ordered a new power measurement device from National Instruments Updated and Origen 3.4 rc7 Completed Android HAL […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Samsung Releases Galaxy S3 Source Code

Samsung Releases Galaxy S3 Source Code

Samsung Galaxy S III has just hit the shelves in several countries and Samsung has decided it was a good time to release the source code for the device (codenamed GT-I9300). Two files are available: the original release (GT-I9300_ICS_Opensource.zip – 189 MB) and a new update (GT-I9300_ICS_Opensource_Update1.zip – 190 MB) which can both be downloaded here after accepting some legalese. Alternatively, you can also clone the kernel code from github @ https://github.com/sgs3/GT-I9300_Kernel which is just an import of the file(s) above. Jean-Luc Aufranc (CNXSoft)Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011. www.cnx-software.com

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on Dell Announces Copper ARM Servers Based on Marvell ARMADA XP SoC

Dell Announces Copper ARM Servers Based on Marvell ARMADA XP SoC

It looks like 2012 will be the year of ARM servers. After previous announcements of ARM servers based on Calxeda and Applied Micro SoC, Dell has just announced its own “Copper” ARM servers powered by Marvell ARMADA XP SoC (MV78460) that allegedly runs Ubuntu Server with a LAMP stack. Dell “Copper” ARM server is composed of 12 sleds with 4 SoC each slotted into a 3U C5000 Chassis. Here are the specs: Form factor 3U chassis 48 independent servers Architecture 1S 1.6GHz, quadcore Marvell Armada XP system on a chip (SoC) 4 discrete server nodes per sled 12 sleds per 3U chassis Memory 1 DIMM slot DDR3 UDIMM VLP, 1333MHz up to 8GB per node Drive bays 1 x 2.5″ SATA per node Hard disk drives 2.5″ SATA (7.2K rpm) Networking 1GB Marvell Ethernet uplink per node (QSGMII) connected to Marvell Integrated L2 Switch (98DX4122) Dell believes that ARM based […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Ubuntu, Tizen, XMBC… Demos at Q2.12 Linaro Connect in Hong Kong

Ubuntu, Tizen, XMBC… Demos at Q2.12 Linaro Connect in Hong Kong

Linaro has announced several demos would take place at Linaro Connect on June 1st, 2012 in Hong Kong: Big.LITTLE in-kernel Switcher (Linaro) SIProp – Combat Scouter – How much your Combat Power? (SIProp) Android Toolchain Improvements (Linaro) Origen Running Awesome Code (Linaro) Snowball with MM enablement (Linaro) Tizen on Snowball (Linaro) Google+ Hangouts on an ARM Board (Linaro) Low-Cost Logic Analyzer (Linaro) XBMC on Snowball – ST Ericsson Snowball (Linaro) (Ubuntu) Unity 3D on Snowball (Linaro) Ubuntu TV on Snowball (Linaro) PCM (Phase Change Memory) : Linaro kernel meets with the PCM technology (Micron) ARM DS-5 & Linaro (ARM) Most of the demos will be organized by Linaro, but three others companies will also shown the “show”, namely SIProp, Micron and ARM. It’s always interested to see what happens at Linaro because it gives a view into the future to what may comes to the new products and developers can see what new features are available for […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 5 Comments on Leap Motion Lets You Control Your Computer With Finger Gestures

Leap Motion Lets You Control Your Computer With Finger Gestures

Leap Motion is a tiny USB device, about the size of a thumb drive, that let’s you control your computer with hands and fingers (and even pencils) gestures in three dimensions using motion sensing and motion control technology. The company claims that Leap technology is 200 times more accurate than existing solutions with an accuracy up to 0.01 millimeter (which seems over the top). To use the LEAP, simply plug it into a USB port, install Leap Motion software, calibrate the device and you’re ready to control your PC a la minority report. This technology will probably not displace the mouse and keyboard, as your arms would get very tired after a while, but there are some good use cases: Stylus emulation and 3D images creation. Gaming. 3D modeling software interaction. Sign a document digitally with a pen. User interaction in Windows 7/8 or Mac OS X: Clicking, grabbing, scrolling, […]

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