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Sunday, August 7, 2011

7zip and zip support in Ubuntu

Once I downloaded a 7z file and it wouldn't open. First I thought that the archive was corrupted so I downloaded it from another mirror and I got the same error.
Then I realised that Ubuntu doesn't come with support for .zip and .7z archives allthough Linux Mint does have support for .zip and .7z by default.

To open .zip and .7z archives in Ubuntu open terminal and type:

For .zip

sudo apt-get install unrar-free 
For .7z
sudo apt-get install p7zip-full 
These small things are annoying for beginners. I'll add them to my installscript for the next version of Ubuntu.

Thursday, August 4, 2011

Change the location of your home subfolders

Not only can you change your desktop folder, you can change the location of any other folder Ubuntu creates for you in your home folder, like Documents or Music – and this works in any Linux distribution using the Gnome desktop manager.
sshot-1
In this example, we’re going to change desktop to show our Dropbox folder. Open your home folder in a File Browser by clicking on Places > Home Folder.
screenshot_002
In the Home Folder, open the .config folder. By default, .config is hidden, so you may have to show hidden folders (temporarily) by clicking on View > Show Hidden Files.
sshot-2
Then open the .config folder by double-clicking on it.
screenshot_006
Now open the user-dirs.dirs file…
screenshot_007
If double-clicking on it does not open it in a text editor, right-click on it and choose Open with Other Application… and find a text editor like Gedit.
Change the entry associated with XDG_DESKTOP_DIR to the folder you want to be shown as your desktop. In our case, this is $HOME/Dropbox.
Note: The “~” shortcut for the home directory won’t work in this file (use $HOME for that), but an absolute path (i.e. a path starting with “/”) will work.
screenshot_009
Feel free to change the locations of the other folders as well.
Save and close user-dirs.dirs. At this point you can either log off and then log back on to get your desktop back, or open a terminal window Applications > Accessories > Terminal and enter:
killall nautilus
Nautilus (the file manager in Gnome) will restart itself and display your newly chosen folder as the desktop!

Tuesday, August 2, 2011

Google videochat in Ubuntu

From now google videochat is also available in Linux. Go to this website and download the installer:

Google videochat

Make a second wireless accespoint

Sometimes it is necessary  to have a second router in your large house. To use a common router as second access-point you have change its settings. The first router is the captain of the network. The second router only access-point.

If the address lines are different, there's not much of a problem. Just connect the second router and off you go: 192.168.x.x. 
If router 1 is on 192.168.1.x giving addresses and router 2 is on 192.168.2.x, it all works fine.
But if both routers are on 192.168.1.x, the first router will block the second router. Turn the router function of the second router off and make it a dumb access-point.
This is the way to do that:
Just use the first router as you always did. If it already works, don't change that.
Connect the second router temporarily with a computer with a normal Ethernet cable. Connect it at a Ethernet port and not at the WAN port. Start the router login screen in your browser. Usually at 192.168.1.1. of 192.168.2.1
In this configuration screen you can give your second router a fixed IP address that is out of the range of the DHCP server of the first router. E.G: 192.168.1.150

Turn off the DHCP server in this second router. Make sure the second router is using another channel than your first router. Now your almost done. Close your browser and disconnect the second router from your PC or laptop.


Now connect  router one with an Ethernet cable in Ethernet port 1 and connect this cable to Ethernet port 1 on the second router. DON'T USE THE WAN port!

Router 2 is now a dumb access-point for router 1.


You may use this at work if you need more access-point at your desktop, or want to use WIFI where it is not available.