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HowTos

some howtos:

Filed under
HowTos
  • Emacs in the real world – part 1
  • 7 Linux fdisk Command Examples to Manage Partitions
  • How to Text scrolling off the screen?
  • How to perform sha256sum check on Ubuntu
  • Free Up a Lot of Disk Space on Ubuntu by Deleting Cached Package Files
  • Using python’s imp to dynamically load modules
  • Customize Your Icons With icoGEN [Gnome]
  • Shrink or Reduce Partition Size in Windows 7
  • Reliance Netconnect Broadband+ on Ubuntu
  • How not to update GPG keys
  • SELinux quicky
  • Create a Custom Debian Live CD through the Web
  • Updated Guides (KDE4 and Conky)
  • On-Access virus scanning on openSUSE 11.3
  • Install FluxBox Themes “Styles”
  • Linux/Unix Security Guides, Resources, Books, Manuals
  • Migrating from Microsoft SQL Server to PostgreSQL
  • HP Photosmart C4380 over WiFi problem Solved
  • nginx auth – allowing IP or password-based access
  • Setting the Resolution in an X-less VM

some howtos:

Filed under
HowTos
  • Browsing Comfortably on KDE
  • Debian Sid gets KDE 4.5.1
  • How do we compile & execute C programs under Linux?
  • How to upgrade OpenSUSE 11.3 x64 to KDE 4.5 Stable
  • LDAP: The tool to manage enterprise infrastructure
  • How to get back missing gnome-panel icons/applets
  • Tune In. Turn On. Turn Key.
  • Build Service Cheat Sheet
  • source port routing

Solutions for KDE 4.5 glitches

Filed under
KDE
HowTos

ghacks.net: I thought I would re-visit one of my favorite topics of late, KDE 4.5. The SC has been out long enough now for some of the smaller issues to pop up and workarounds be revealed. I am going to show you a few tips and tricks to help you get around some.

Fun with mouse pointer themes

Filed under
Software
HowTos

cristalinux.blogspot: Up until recently, I had not really played around with mouse cursor themes at all. I thought it was like Windows in the old days, where the most you could get was a different color, perhaps a cursor providing a 3D "illusion" Look&Feel to it. I couldn't have been more wrong.

some howtos:

Filed under
HowTos
  • Getting IP address in Perl
  • improving Ubuntu performance on older hardware
  • Get organized with Getting Things GNOME
  • Change the time zone in Linux - using command line
  • fix dependency errors when installing qgis-plugin-grass
  • How to execute a task ‘at’ the time you want..?

Creating An NFS-Like Standalone Storage Server With GlusterFS On Ubuntu 10.04

Filed under
Ubuntu
HowTos

This tutorial shows how to set up a standalone storage server on Ubuntu 10.04. Instead of NFS, I will use GlusterFS here. The client system will be able to access the storage as if it was a local filesystem. GlusterFS is a clustered file-system capable of scaling to several peta-bytes. It aggregates various storage bricks over Infiniband RDMA or TCP/IP interconnect into one large parallel network file system. Storage bricks can be made of any commodity hardware such as x86_64 servers with SATA-II RAID and Infiniband HBA.

today's howtos & stuff:

Filed under
News
HowTos
  • Mass convert WMA to MP3 using ffmpeg and ruby
  • Utilising the Microsoft Baseline Security Analyser remotely from Ubuntu
  • DtO: You know the routine...
  • Burner (Fire Edition) - Bring Some Heat To k3b
  • Spring 0.82.5.1
  • India's Largest FOSS Event: FOSS.IN
  • Reasonably secure remote GUI access with SSH and NoMachine
  • How to setup additional timezones in Gnome
  • How to hide Gnome apps in KDE and vice versa?
  • Oracle vs. Google, not a private rant
  • Ideas get greased at NCSU's 'Garage'
  • Move files in bash with tar and progress bar
  • [SOLVED] Torrents stopped downloading
  • This time, OpenSuse
  • MariaDB going places: Drupal, Zend Framework
  • Nepomuk+strigi as desktop search

some howtos:

Filed under
HowTos
  • How to Run a Projector Remotely with GNU/Linux
  • Embed a Terminal into Nautilus
  • Install MS TrueType core fonts on Fedora
  • Hide Audio in a Simple Image
  • How to Tell What Type of Memory Your Linux PC Has Installed
  • Grep Gzipped Log Files
  • Tar tips and uses
  • 6 Perl File Handle Examples to Open, Read, and Write File

some howtos:

Filed under
HowTos
  • Create directory trees in one command
  • Learn To Use The Ubuntu Command Line With CLIcompanion
  • commands for OpenOffice applications
  • REE, Passenger and Rails on Ubuntu
  • Rescuing Difficult Panoramas on Linux, Hugin part 2
  • Access Google Docs in Ubuntu desktop via Nautilus File browser
  • Limit Download Speed For Apt Command Using Terminal
  • What is user slaying?
  • vifm: Fast, lightweight, old school file manager
  • Backup Linux? 15 rsync Command Examples
  • Creating Custom Man Pages
  • [SOLVED] NO_PUBKEY 61E091672E206FF0
  • Using Exim4 to send Messages through GMail
  • Debugging shared library problems: a real-world example
  • How-To: Quotes to Live By
  • Meet the GIMP: Episode 145: Pictures at an Exhibition

some howtos:

Filed under
HowTos
  • Install Guest-Additions on Ubuntu 10.10 Beta : Workaround
  • How to use GNU Privacy Guard (GPG)
  • Create Your Own Graphical Web of Trust
  • Create Window Placement Rule Using Compiz Fusion On Ubuntu
  • Detecting Rootkits in Ubuntu system using Chkrootkit and Rkhunter
  • Easy Way to Wirelessly Transfer Files Between an Android and KDE
  • Midori, Flash, and Unity Linux 2010
  • Add missing icons under System Menu in Ubuntu 10.04 Lucid Lynx
  • Enable Foreign Language Input In Ubuntu
  • Linux Directory Structure (File System Structure) Explained with Examples
  • Find in Tabs – Search Multiple Open Tabs in Firefox Simultaneously
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More in Tux Machines

Openwashing: Microsoft, Apple and Symphony Software Foundation

Linux Foundation: Real-Time Linux (RT Linux), LF Deep Learning Foundation, OpenTracing and More

  • Developers: Prepare Your Drivers for Real-Time Linux
    Although Real-Time Linux (RT Linux) has been a staple at Embedded Linux Conferences for years -- here’s a story on the RT presentations in 2007 -- many developers have viewed the technology to be peripheral to their own embedded projects. Yet as RT, enabled via the PREEMPT_RT patch, prepares to be fully integrated into the mainline kernel, a wider circle of developers should pay attention. In particular, Linux device driver authors will need to ensure that their drivers play nice with RT-enabled kernels. At the recent Embedded Linux Conference in Portland, National Instruments software engineer Julia Cartwright, an acting maintainer on a stable release of the RT patch, gave a well-attended presentation called “What Every Driver Developer Should Know about RT.” Cartwright started with an overview of RT, which helps provide guarantees for user task execution for embedded applications that require a high level of determinism. She then described the classes of driver-related problems that can have a detrimental impact to RT, as well as potential resolutions. One of the challenges of any real-time operating system is that most target applications have two types of tasks: those with real-time requirements and latency sensitivity, and those for non-time critical tasks such as disk monitoring, throughput, or I/O. “The two classes of tasks need to run together and maybe communicate with one another with mixed criticality,” explained Cartwright. “You must resolve two different degrees of time sensitivity.” One solution is to split the tasks by using two different hardware platforms. “You could have an Arm Cortex-R, FPGA, or PLD based board for super time-critical stuff, and then a Cortex-A series board with Linux,” said Cartwright. “This offers the best isolation, but it raises the per unit costs, and it’s hard to communicate between the domains.”
  • Clarifying the Linux Real Time Issue
    I recently posted an article about the increasing development and availability of Linux-powered automation devices. This is a clear industry trend that’s unavoidable for anyone following the automation technology industry. Shortly after posting the article, I heard from a reader who wrote: “I read your article and I am surprised that you would promote the idea that anyone would use Linux for anything critical. It isn’t even a real-time control system. It can be used for non-critical applications, but the article implies that industry is adopting it for everything.” This reader brings up a valid point. Linux is not a real-time OS in and of itself. As Vibhoosh Gupta of GE Automation & Controls noted in the original article, GE uses “Type 1 hypervisor technology to run a real-time OS, such as VxWorks, running traditional control loops alongside our PAC Edge technology operating on Linux.” [...] The Linux Foundation launched the RTL (Real Time Linux) Collaborative Project in October 2015. According to the Foundation, the project was “founded by industry experts to advance technologies for the robotics, telecom, manufacturing and medical industries. The aim of the RTL collaborative project is mainlining the PREEMPT_RT patch.” While there are plenty of mission critical applications running Linux OS with real-time extensions—as highlighted by GE, Opto and Wago—the Linux Foundation notes on its site that there remains “much work to be done.”
  • Linux Launches Deep Learning Foundation For Open Source Growth In AI
    The Linux Foundation has launched the LF Deep Learning Foundation, an umbrella organisation which will support and sustain open source innovation in artificial intelligence, machine learning, and deep learning. The organisation will strive to make these critical new technologies available to developers and data scientists everywhere, said a statement published by LF. Founding members of LF Deep Learning include Amdocs, AT&T, B.Yond, Baidu, Huawei, Nokia, Tech Mahindra, Tencent, Univa, and ZTE, among others. LF Deep Learning, members are working to create a neutral space where makers and sustainers of tools and infrastructure can interact and harmonise their efforts and accelerate the broad adoption of deep learning technologies.
  • OpenTracing: Distributed Tracing’s Emerging Industry Standard
    What was traditionally known as just Monitoring has clearly been going through a renaissance over the last few years. The industry as a whole is finally moving away from having Monitoring and Logging silos – something we’ve been doing and “preaching” for years – and the term Observability emerged as the new moniker for everything that encompasses any form of infrastructure and application monitoring. Microservices have been around for a over a decade under one name or another. Now often deployed in separate containers it became obvious we need a way to trace transactions through various microservice layers, from the client all the way down to queues, storage, calls to external services, etc. This created a new interest in Transaction Tracing that, although not new, has now re-emerged as the third pillar of observability.
  • There’s a Server in Every Serverless Platform [Ed: "Serverless" is a lie. It's a server. One that you do not control; one/s that control/s you. Even Swapnil finally or belatedly gets it. The LF really likes buzzwords.]
    Serverless computing or Function as a Service (FaaS) is a new buzzword created by an industry that loves to coin new terms as market dynamics change and technologies evolve. But what exactly does it mean? What is serverless computing?
  • Take the Open Source Job Survey from Dice and The Linux Foundation
    Interest in hiring open source professionals is on the rise, with more companies than ever looking for full-time hires with open source skills and experience. To gather more information about the changing landscape and opportunities for developers, administrators, managers, and other open source professionals, Dice and The Linux Foundation have partnered to produce two open source jobs surveys — designed specifically for hiring managers and industry professionals.
  • Automotive Linux Summit & OS Summit Japan Schedule Announced [Ed: "Brian Redmond, Microsoft" so you basically go to an event about Linux and must listen to a talk from a company which attacks Linux with patent blackmail, bribes etc.]

Security: Updates, GrayKey, Google and Cilium

  • Security updates for Wednesday
  • Hackers Leaked The Code Of iPhone Cracking Device “GrayKey”, Attempted Extortion
    The mysterious piece of hardware GrayKey might give a sense of happiness to cops because they can get inside most of the iPhone models currently active, including the iPhone X. The $30,000 device is known to crack a 4-digit iPhone passcode in a matter of a few hours, and a six-digit passcode in 3 days, or possibly 11 hours in ideal scenarios. That’s why security experts suggest that iOS users should keep an alphanumeric passcode instead of an all-number passcode.
  • Someone Is Trying to Extort iPhone Crackers GrayShift With Leaked Code
    Law enforcement agencies across the country are buying or have expressed interest in buying GrayKey, a device that can unlock up-to-date iPhones. But Grayshift, the company that makes the device, has attracted some other attention as well. Last week, an unknown party quietly leaked portions of GrayKey code onto the internet, and demanded over $15,000 from Grayshift—ironically, the price of an entry-level GrayKey—in order to stop publishing the material. The code itself does not appear to be particularly sensitive, but Grayshift confirmed to Motherboard the brief data leak that led to the extortion attempt.
  • It's not you, it's Big G: Sneaky spammers slip strangers spoofed spam, swamp Gmail sent files
    Google has confirmed spammers can not only send out spoofed emails that appear to have been sent by Gmail users, but said messages also appear in those users' sent mail folders. The Chocolate Factory on Monday told The Register that someone has indeed created and sent spam with forged email headers. These not only override the send address, so that it appears a legit Gmail user sent the message, but it also mysteriously shows up in that person's sent box as if they had typed it and emitted themselves. In turn, the messages would also appear in their inboxes as sent mail.
  • Cilium 1.0 Advances Container Networking With Improved Security
    For last two decades, the IPtables technology has been the cornerstone of Linux networking implementations, including new container models. On April 24, the open-source Cilium 1.0 release was launched, providing a new alternative to IPtables by using BPF (Berkeley Packet Filter), which improves both networking and security. The Cilium project's GitHub code repository defines the effort as Linux Native, HTTP Aware Network Security for Containers. Cilium development has been driven to date by stealth startup Covalent, which is led by CEO Dan Wendlandt, who well-known in the networking community for his work at VMware on software-defined networking, and CTO Thomas Graf, who is a core Linux kernel networking developer.

Applications: KStars, Kurly, Pamac, QEMU

  • KStars 2.9.5 is out!
    Autofocus module users would be happy to learn that the HFR value is now responsive to changing seeing conditions. Previously, the first successful autofocus operation would set the HFR Threshold value of which subsequent measurements are compared against during the in-sequence-focusing step.
  • Kurly – An Alternative to Most Widely Used Curl Program
    Kurly is a free open source, simple but effective, cross-platform alternative to the popular curl command-line tool. It is written in Go programming language and works in the same way as curl but only aims to offer common usage options and procedures, with emphasis on the HTTP(S) operations. In this tutorial we will learn how to install and use kurly program – an alternative to most widely used curl command in Linux.
  • Pamac – Easily Install and Manage Software on Arch Linux
    Arch Linux is one of the most popular Linux distribution available despite its apparent technicality. Its default package manager pacman is powerful but as time always tells, it is a lot easier to get certain things done using a mouse because GUI apps barely require any typing nor do they require you to remember any commands; and this is where Pamac comes in. Pamac is a Gtk3 frontend for libalpm and it is the GUI tool that Arch Linux users turn to the most when they aren’t in the mood to manage their software packages via the terminal; and who can blame them? It was specifically created to be used with Pacman.
  • QEMU 2.12 Released With RISC-V, Spectre/Meltdown & Intel vGPU Action
    QEMU 2.12 is now officially available as the latest stable feature update to this important component to the open-source Linux virtualization stack.