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I don’t know it’s a bug or not but ‘Error While expunging folder‘ error message in Evolution is very annoying. You can’t empty your Trash bin mean if you don’t solve your evolution local database will become bigger and bigger. There are few solutions you can get from the Internet.

I wrote this article for easier solution with very clear instructions.

As you can see from the below picture, at the bottom screen, this error suddenly occur when I tried to empty my Evolution trash (File > Empty Trash).

Now, I will show you how to fix this problem.
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Grooveshark a free on-line music station that is easy to use with millions of songs and fast streaming. You can listen a very good quality sound music without any interrupt or delay. I don’t talk about using high Internet speed connection. I just use my laptop with 3G connection through my mobile phone as modem.

As I said, it’s very easy to use. Just open your browser and type: “http://www.grooveshark.com”.

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Free Online Storage is a free on-line storage space where you can upload, download or share your data in the Internet. With high speed Internet connection available at the moment is good alternative for media storage instead of flash disc because you can get your data at any place in the world as long as there is Internet connection.

Step 1. Registration.
Open you your browser and type: http://uploaded.to.

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Skype for Ubuntu Karmic is still not available when I write this article but you still can use Skype 2.1 Beta 2 for Linux for (Ubuntu 8.10/ intrepid) installer to run skype in your Karmic.

First download the skype installer.

Go to: http://www.skype.com/intl/en/get-skype/on-your-computer/linux/.

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RAR (Roshal Archive) is one of well known archive file format available in compress technology. It’s developed by Eugene Roshal (Russian Software Engineer). Free version which only can read (extract) in Linux are PeaZip and unrar. The shareware version also available in Linux.

Although RARLAB distribute the source code and binaries (not under free software license), it’s only can extract not create the RAR archive. I think that’s the reason why ‘rar’ is not popular in Linux community.

To extract ‘rar’ file in Linux Ubuntu you need additional program.
Before you follow the instruction below, make sure you are connected to the internet.

First, open Linux Terminal (Applications > Accessories > Terminal) and type $sudo apt-get install unrar.

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DNS (Domain Name Service) server is a server that translate an IP address into a name that will be easy to remember or do the opposite way.

The administrative job is done in Server side. For client side just set the machine to connect the DNS server.

Before we start, I assume that you are connected to Internet already. For, text editor, you can use any program that you are familiar with. In this sample, I use vim.

The installation is as easy as below:

Step 1. Install the bind9

Open Linux Terminal (Applications>Accessories>Terminal), type: sudo apt-get install bind9

Installation finished.

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Airodump-ng is one of favorite tools in hacking wireless network. When I upgrade my ubuntu from Gutsy to Intrepid, I can’t run this application anymore. It’s not application error because I can run it in Gutsy version before. My wireless card chip set is ‘ipw3945′.

The error message is a bit complicated as you see below.

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ioctl(SIOCSIWMODE) failed: Device or resource busy

ARP linktype is set to 1 (Ethernet) – expected ARPHRD_IEEE80211,

ARPHRD_IEEE80211_FULL or ARPHRD_IEEE80211_PRISM instead. Make

sure RFMON is enabled: run ‘airmon-ng start wlan0 <#>’

Sysfs injection support was not found either.

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Mean that if you want your airodump-ng run, you will need to try to fix the bolds problems above. Your problem may be one of it but in my case not even one of the error message.

Try to figure out the answer quite some times which is actually is very simple.

It’s only change the ipw3945 chip set mode from ‘Managed‘ to ‘monitor‘.

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