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HowTos

How to catch Linux system intruders

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HowTos

techradar.com: There's no doubt that Linux is a secure operating system. However, nothing is perfect. Millions of lines of code are churned through the kernel every second and it only takes a single programming mistake to open a door into the operating system. If that line of code happens to face the Internet, that's a backdoor to your server.

some howtos:

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HowTos
  • Short Tip: htop, a top alternative

  • Video - Installing and Uninstalling Adobe AIR and Applications
  • DPKG and APT-GET commands for packages
  • How to view Routing Table and Change your default Gateway
  • How to make Opera 9.5 look native in KDE 4
  • How to add metadata to digital pictures from the command line
  • Virtualization As An Alternative To Dual Booting Part 1
  • How to Properly Setup Samba

some howtos:

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HowTos
  • How to restore GRUB with an Ubuntu Live CD

  • How to make your application appear in the Add/Remove tool
  • Tar remote dir over SSH
  • Using wine to run windows application on openSUSE 11
  • Nokia E71 as a USB or Bluetooth 3G Data Modem on Linux
  • Mailman and Exim4
  • Combinations Vs. Permutations On Linux and Unix
  • How to View .Chm files in Linux
  • How to Achieve Nice Font Rendering in Ubuntu Hardy

Getting the Ugly out of Ubuntu

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Ubuntu
HowTos

techwarelabs.com: Canonical's Ubuntu has brought a new definition of “ease of use” to the Linux community. For those readers that have made the jump: you may have noticed that the default color theme and window decorations are somewhat... ugly. This article will give you a crash course in how to improve your Ubuntu.

some howtos:

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HowTos
  • How to install Adobe AIR in Ubuntu

  • Tune TCP/IP setting using sysctl
  • How to use Magic System Request Keys in Ubuntu Linux
  • Lazy umount
  • Create Random Blank Files
  • MySql basics CentOs 5
  • Implement load-balancing, port forwarding, and rate-limiting with shd-tcp-tools
  • HOWTO : Ubuntu eee on ASUS Eee PC 701
  • Streamlined Perl Number Matching Script For Unix Or Linux

few howtos:

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HowTos
  • How to access to music with amarok from anywhere (almost)

  • How to configure Evolution Mail Client for GMAIL
  • OpenOffice.org Basic crash course: Saving user settings
  • Untar multiple files in a directory
  • How to go a particular line or word in vi

Save time at the command line with shell aliases and functions

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HowTos

linux.com: Familiarity with command prompts and shell scripts is still necessary if you want to get the most from your GNU/Linux system, but the less time you spend doing that the better, right? Two powerful ways to minimize your time at the command line are shell aliases and functions.

Installing Joomla 1.5.6 On A Lighttpd Web Server (Debian Etch)

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HowTos

This guide explains how you can install Joomla 1.5.6 on a lighttpd web server on Debian Etch. Joomla comes with an .htaccess file with mod_rewrite rules (for Apache) (to enable search-engine friendly URLs) that do not work on lighttpd.

some howtos:

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HowTos
  • Top 7 Ubuntu GUI tips

  • Installing and Configuring Solr on Gentoo Linux
  • Get more from APT
  • Xubuntu 8.04.1 on USB drive
  • Securing your network premises with Endian
  • Spam prevention with Exim and greylistd - Part 1
  • Try command-line looping for added efficiency
  • Share One Keyboard and Mouse Between Multiple Computers
  • Use Ubuntu Live CD to Backup Files
  • HowTo: Setting custom resolution in VNC Server
  • Get latest wine development version on ubuntu
  • How to install Fedora on your Eee PC
  • Two easy setup changes everyone should make in OOo
  • Howto: Build software updates in Ubuntu

some howtos:

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HowTos
  • Easy command line solution to the docx problem in Linux

  • Developing with libyui/libzypp & python - part1
  • How to Install Emulators on Ubuntu (NES Edition)
  • Reworking Shell Scripts - Part 2
  • Linux Mass Rename Recursively using a Bash Script
  • Dropbox: Backs Up and Syncs Files From Your Desktop
  • HOWTO: decoupling the dashboard from the KDE 4.1.x desktop
  • Mount Samba share using fstab
  • Fix for E: Cannot find filename or size tag error in AptOnCD
  • Remotely Control your Torrents in Linux
  • Adding a signing key to RPM
  • SELinux on Ubuntu (part 1)
  • How to know what version of linux is installed on the machine
  • Monitor you computer’s network connection in Linux
  • Configuring sudo for Fedora 9
  • Condensing Perl Scripts In Linux and Unix
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More in Tux Machines

today's howtos

Leftovers: Software

  • SOGo v3.0.0 released
    After about 1.5 year of development, Inverse is extremely happy to announce the immediate availability of SOGo v3.0! This release is considered ready for production use.
  • Tupi 0.2 revision git06 (Kunumi)
    After a year without significant activity, this release has an special meaning not only because it represents the continuity of the project but our strong intention of making of Tupi a professional tool for educational and young artists communities around the world.
  • [RetroShare] Release notes for final 0.6.0
    v0.6.0 is now considered final. This post summarizes the main lines of work since the release of 0.6.0-RC2 (last june).
  • OpenShot 2.0.6 (Beta 3) Released!
  • OpenShot 2.0 Beta Is Now Available for Public Testing
    The update is the third full beta release of the revamped video editor but only the first to made available for public testing. Backers of the OpenShot crowdfunding campaign have been able to use beta builds of the hugely revamped non-linear video editor since January.
  • Atom 1.5.0 Has Been Released
    Atom is an open-source, multi-platform text editor developed by GitHub, having a simple and intuitive graphical user interface and a bunch of interesting features for writing: CSS, HTML, JavaScript and other web programming languages. Among others, it has support for macros, auto-completion a split screen feature and it integrates with the file manager.
  • HPLIP 3.16.2 Brings Support For Debian 8.3, Linux Mint 17.3 And New Printers
    As you may know, HP Linux Imaging and Printing (HPLIP) is a tool for printing, scanning and faxing for the HP printers.
  • Ixion 0.11.0
    Version 0.11.0 of the Ixion library has been just released. You can download it from the project’s home page.
  • Now You Can Use uTorrent Without Ads, Thanks To New Subscription Model
    In the past, the parent company Bittorrent Inc. has relied on an ad-based revenue model to keep uTorrent up and running, but now they have realized the need for a premium experience for the users by charging a nominal amount. Until now, bundled software that hides inside the uTorrent installation package has only consumed space on your computer. The development team is well aware of this issue and that’s why they have come up with the ad-free uTorrent.

Kernel Space: Linux, Graphics

  • Linux kernel bug delivers corrupt TCP/IP data to Mesos, Kubernetes, Docker containers
    The Linux Kernel has a bug that causes containers that use veth devices for network routing (such as Docker on IPv6, Kubernetes, Google Container Engine, and Mesos) to not check TCP checksums. This results in applications incorrectly receiving corrupt data in a number of situations, such as with bad networking hardware. The bug dates back at least three years and is present in kernels as far back as we’ve tested. Our patch has been reviewed and accepted into the kernel, and is currently being backported to -stable releases back to 3.14 in different distributions (such as Suse, and Canonical). If you use containers in your setup, I recommend you apply this patch or deploy a kernel with this patch when it becomes available. Note: Docker’s default NAT networking is not affected and, in practice, Google Container Engine is likely protected from hardware errors by its virtualized network.
  • Performance problems
    Just over a year ago I implemented an optimization to the SPI core code in Linux that avoids some needless context switches to a worker thread in the main data path that most clients use. This was really nice, it was simple to do but saved a bunch of work for most drivers using SPI and made things noticeably faster. The code got merged in v4.0 and that was that, I kept on kicking a few more ideas for optimizations in this area around but that was that until the past month.
  • Compute Shader Code Begins Landing For Gallium3D
    Samuel Pitoiset began pushing his Gallium3D Mesa state tracker changes this morning for supporting compute shaders via the GL_ARB_compute_shader extension. Before getting too excited, the hardware drivers haven't yet implemented the support. It was back in December that core Mesa received its treatment for compute shader support and came with Intel's i965 driver implementing CS.
  • Libav Finally Lands VDPAU Support For Accelerated HEVC Decoding
    While FFmpeg has offered hardware-accelerated HEVC decoding using NVIDIA's VDPAU API since last summer, this support for the FFmpeg-forked libav landed just today. In June was when FFmpeg added support to its libavcodec for handling HEVC/H.265 video decoding via NVIDIA's Video Decode and Presentation API for Unix interface. Around that same time, developer Philip Langdale who had done the FFmpeg patch, also submitted the patch for Libav for decoding HEVC content through VDPAU where supported.

Unixstickers, Linux goes to Washington, Why Linux?

  • Unixstickers sent me a package!
    There's an old, popular saying, beware geeks bearing gifts. But in this case, I was pleased to see an email in my inbox, from unixstickers.com, asking me if I was interested in reviewing their products. I said ye, and a quick few days later, there was a surprise courier-delivered envelope waiting for me in the post. Coincidentally - or not - the whole thing happened close enough to the 2015 end-of-the-year holidays to classify as poetic justice. On a slightly more serious note, Unixstickers is a company shipping T-shirts, hoodies, mugs, posters, pins, and stickers to UNIX and Linux aficionados worldwide. Having been identified one and acquired on the company's PR radar, I am now doing a first-of-a-kind Dedoimedo non-technical technical review of merchandise related to our favorite software. So not sure how it's gonna work out, but let's see.
  • Linux goes to Washington: How the White House/Linux Foundation collaboration will work
    No doubt by now you've heard about the Obama Administration's newly announced Cybersecurity National Action Plan (CNAP). You can read more about it on CIO.com here and here. But what you may not know is that the White House is actively working with the Linux and open source community for CNAP. In a blog post Jim Zemlin, the executive director of the Linux Foundation said, “In the proposal, the White House announced collaboration with The Linux Foundation’s Core Infrastructure Initiative (CII) to better secure Internet 'utilities' such as open-source software, protocols and standards.”
  • Why Linux?
    Linux may inspire you to think of coders hunched over their desks (that are littered with Mountain Dew cans) while looking at lines of codes, faintly lit by the yellow glow of old CRT monitors. Maybe Linux sounds like some kind of a wild cat and you have never heard the term before. Maybe you have use it every day. It is an operating system loved by a few and misrepresented to many.