Category: Open Source

Free and Open Source Software Listing

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403 Forbidden during Ubuntu Gutsy Security Update

Some of you may encounter the message 403 Forbidden during Ubuntu Gutsy Security update, especially when you does your update using “sudo apt-get upgrade”.

The message was displayed because the Ubuntu team deliberately block security updates from the server side following reports that the updates are breaking xorg-server package (this very same incident also happened last year, during Dapper release).

Thankfully the issue has been handled by the Ubuntu team, and now you can continue updating your computer without any interruption or side effects from installing the security updates.

Was Ubuntu the only distro affected by this problem?
Credit to enforcer, now I know there are several other distro (OpenSuSE, Gentoo, Debian) besides Ubuntu that experienced this problem.

Should I install any security updates ?
It highly advisable to install security updates whenever they are available from the update server. Failure of doing so may expose your system to various security holes and vulnerability which can lead to your system being compromised by malicious party.

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Get Free Software Stickers for your computer!

Tired of having Windows XP/Vista logo stickers on your Linux computer ? Now you can tear away those stickers and replace it with one included in the Free Software Stickers book.

Filled with hundreds of creative sticker design, the Free Software Stickers lets you announce to the world that you are using Free Software operated computer.

fsf_book.jpg

The book is a must-have for all Linux and Free Software geeks around the world. It has a collection of distro related stickers including Debian, SUSE, Slackware, Gentoo, Ubuntu, Fedora, kubuntu, Red Hat and various other non-Linux Free Software.

How do I get the sticker book ?

As with the spirit of Free Software, the sticker book is available for free through the internet. What you need to do is to select which sticker you want to put on your computer, and print it out using a self-adhesive photographic paper, which is easily obtainable from computer shops.

fsf_stickers_tn.jpg

There you go, a great way to impress your friends at any Linux user group or FOSS-UG meetup!

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How to find fastest Debian apt-get mirrors with netselect-apt

Using the nearest server to your location does not guarantee that you will get faster connection speed, other factors such as network congestions, faulty routers and bandwidth may affect the speed of your software installations.

Thus it is best to update the sources.lst file from time to time to keep updated with the fastest mirror to you, to ensure faster software installation and updates on your computer.

Generally there are two ways to do this, one is by using Synaptic to check for the fastest mirror (works for Ubuntu too!) and secondly by using netselect-apt (currently does not work for Ubuntu).

How to get fastest apt-get mirror with netselect-apt (Debian)

Firstly you need to install netselect-apt. then just run the command by typing “netselect-apt distribution name” to get the fastest mirror. Append -n switch, if you want to include the non-free repository too

Example :
# netselect-apt lenny

Example (non-free repos) :
# netselect-apt -n lenny

The application will test each apt-get mirrors it could find on debian.org site and perform some connection to estimate its speed. At the end of the test, the fastest mirror will be selected and used in the /etc/apt/sources.lst file.

Nice, but does it work on Ubuntu?
Note that although Ubuntu has netselect-apt, the application is currently broken under Ubuntu
( as of Gutsy Gibbon ). Ubuntu users should try the Synaptic method instead.

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How to install midori lightweight browser on Ubuntu

Here’s a quick how to install Midori browser. It is a lightweight browser which uses Webkit rendering enginer, the same engine that powers Mac OS X Safari browser.

Midori is a good candidate for an alternative browser if you’ve gotten tired of Mozilla Firefox memory leaking and its not so lightweight feature nowadays.

midori_about.png

1) Edit /etc/apt/sources.lst to include these line
deb http://ppa.launchpad.net/stemp/ubuntu gutsy main
deb-src http://ppa.launchpad.net/stemp/ubuntu gutsy main

2) Update repository by executing,

sudo apt-get update

3) Install midori

sudo apt-get install midori

Note that midori is still under heavy development and quite buggy in this testing release. So expect application freeze or crashes during use.

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gnome-osd: Handy On-Screen Display for XChat and Evolution

I just want to share with you about gnome-osd, a GNOME desktop add-on that I find handy when working on my computer’s desktop.

This add-on provide informational on-screen display when triggered by certain events such as new email, somebody mentions your nick over the irc and when the music player changes the song.

Personally, I use gnome-osd with Xchat IRC client, when I’m in a mood for online chatting with friends.

To use gnome-osd, you need to install ‘gnome-osd’ package and configure it by accessing System->OSD Notifications. You can enable certain triggers by checking the appropriate box on the dialog box as shown here :

osd2.png

Here’s an example of gnome-osd in action:

gnome-osd-papit3.jpg

From the screenshot, you can see that I’ve tweak the settings a little bit to display the messages on the lower right corner of my screen. The OSD is triggered whenever anybody mentions my nick on the IRC.