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HowTos

Debian/Ubuntu tip - flushing out your repository cache

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HowTos

The Aptitude package management system built into Debian, Ubuntu and other Debian-derived distributions is top quality and makes it really easy to get software from out there on to your machine from one convienient interface.

Learn how UNIX multitasks

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HowTos

On UNIX systems, each system and end-user task is contained within a process. Learn how to control processes and use a number of commands to peer into your system.

Bandwidth monitoring with vnStat

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HowTos

If you want to monitor and manage your Internet bandwidth, perhaps to make sure your ISP is not overbilling you, try vnStat, an open source, Linux-based application that gives you a clear picture of your bandwidth usage. This command-line application is simple to install and easy to use.

Gaim nicer notifications with libnotify on Ubuntu 6.10 Edgy

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Gaim (now renamed to Pidgin, but the version I’m using isn’t that new) comes with a “guifications” plugin to do “notifications”, those little popup “toast” messages to tell you that someone’s messaged you, someone’s logged on or off, all that sort of thing.

How To Build A New Freetype

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HowTos

I've had several requests for my RPM for freetype2 including sub-pixel rendering for openSUSE 10.2. So here are instructions on how to build your own, including my modified SPEC file. If you're in the USA it might be illegal to download my file, so this file is only for people who live in free countries. Or at least semi-free countries, like the UK.

1. Download freetype2 source rpm

Disabling unused daemons to speed up your boot sequence

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HowTos

Many Linux distros usually start a lot of daemons when booting, resulting in a long wait before you can get to work after powering on your machine. Some of those daemons are rarely used (or even not al all) by the majority of users. This tutorial describes how to disable unused or rarely used daemons in a proper way, resulting in faster boot sequences and less CPU load.

debug a currently running program with GDB

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HowTos

Here is a quick tips of GDB. There is a time when I was working on a module that was written in c/c++ hangs in the middle of execution. I have no clue how it happens, and it happens quite rare. I keep guessing and try to feed in more debug print lines to search for the cause of the hangs. Spend few days with no luck, but suddenly I thought of GDB.

Upgrade Debian Sarge to Debian Etch

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HowTos

Before upgrading your system, it is strongly recommended that you make a full backup, or at least back up any data or configuration information you can’t afford to lose. The upgrade tools and process are quite reliable, but a hardware failure in the middle of an upgrade could result in a severely damaged system

Command line tips - seeing how much disk space is left with df

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HowTos

t’s time for another command line tip today - and that is how to see how much disk space you have left overall on a particular partition.

It’s always good to know how much space you have left, especially when you’re about to leap into a backup, wget a big file or do some other process which needs a lot of space.

Administrating SElinux on Red Hat Enterprise Linux

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audit2allow is a nice tool for understanding AVC denials. On RHEL4, all AVC denials are logged to the kernel ring buffer. The command dmesg will show these, and audit2allow -d will interprit them, and output the SELinux rules needed to allow these denials.

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More in Tux Machines

Emulator brings x86 Linux apps to ARM devices

Eltechs announced a virtual machine that runs 32-bit x86 Linux applications on ARMv7 SBCs and mini-PCs, and is claimed to be 4.5 times faster than QEMU. The open source QEMU emulator has long been the go-to app for providing virtual machines (VMs) that mimic target hardware during development or otherwise run software in alien territory. Every now and then, someone comes up with software that claims to perform all or part of QEMU’s feature-set more effectively. In this case, Eltechs has launched its Eltechs “ExaGear Desktop,” a VM that implements a virtual x86 Linux container on ARMv7 computers and is claimed to be 4.5 times faster than QEMU. Despite its “desktop” naming, we can imagine many non-desktop possibilities fpr ExaGear in embedded. Read more

GNOME DOCUMENTATION VIDEO IS OUT

The GNOME Documentation Video has now been released on youtube and as a download (Ogg Theora + Vorbis). This is something I have been waiting for since I finished working on it a few weeks ago. A big thanks to Karen for providing a great voice-over for the second time! Translated subtitles are not online just yet for the video, but should come within the next few days (thanks to pmkovar and claude for setting this up!). Read more

Qt Creator 3.2 Officially Released

Qt Creator 3.2, a cross-platform IDE (integrated development environment) tailored to the needs of Qt developers and part of the Qt Project, is now available for download. Read more

Unity adds native Android support for x86

Intel and Unity Technologies are collaborating to bring native support for Android apps built with the gaming-oriented Unity platform to Intel processors. Millions of developers using the gaming-focused Unity cross-platform development framework “can now bring native Android games and other apps to Intel-based mobile devices,” states a news release from Intel and Unity Technologies. Unity is adding Android support for all of Intel’s current and future processors including the Core and Atom processors. Unity will test and support tablets and handsets based on Intel’s Bay Trail, Clovertrail+, and Merrifield Atom processors before moving on to Core processors. Unity, which appears to be the first gaming engine to offer native Android-on-x86 support, is no stranger to x86, having already supported Windows apps on x86. Read more