Archive for the ‘The Digital Sphere’ Category

It turned out that my CWA 854-repeater (from CNet) had been mounted a year without repeating anything. Why? I don’t know, the settings turned out to be all right.

However, the CWA 854 does not like encryption, and that was the problem. So now I am sending extremely sensitive information (for example about Trechinsky and van Wunderwelt) over an unencrypted connection. I have to communicate with The van Wunderwelt Committee. It’s really bad that a wireless repeater doesn’t work with encryption. Shame on you, CNet.

So, if you have been as stupid as me and bought a CWA 854 from CNet, then you can make it extend your wireless network by turning off any kind of encryption on all wireless routers and setting the CWA 854 in AP+WDS mode (Wireless>Basic Settings). Do turn on MAC filtering and hidden essid. Keep your essid absurd, like “coldironhands98cc” (find your own absurd one, do not use my example), do not use your name or street address as an essid! These precautions will keep 97 percent of all unwanted visitors away. The last three percent are impossible to keep out, anyway(s).

If you don’t understand what I’m talking about, then you’ve got to give the CWA 854 back to the shop and tell them the truth: This equipment reduces the security of any network!

1. Download the Citrix client for Linux (tar.gz). Open a terminal in the folder in which you downloaded the Citrix package, and unpack it with

tar -zxvf en.linuxx86.tar.gz

or whatever the file is named, and enter the unpacked directory:

cd en.linuxx86

2. Run the installation script :

sudo ./setupwfc

3. Restart your Firefox browser and execute Citrix .ica files on web pages by clicking them. Then open them with the application /usr/lib/ICAClient/wfica.

Citrix in Ubuntu

If you right click on ica-files within Gnome you can open them with /usr/lib/ICAClient/wfica.

4. Now, if you would like to mount your local disk in the Citrix machine… Edit the All_regions.ini-file:

gedit ~/.ICAClient/All_Regions.ini

5. Change these lines related to disk U (for Ubuntu!) in the following way:

DrivePathU=/home/you
DriveEnabledU=true
DriveReadAccessU=true
DriveWriteAccessU=true

6. Save the file and next time you start a Citrix session your home directory (/home/you) should be visible in the “virtual” file system.

Ubuntu has become my favorite Linux distro, mostly because of its simplicity, its continuity and the fact that most problems are easily solved by a Google search. The community is active and helpful.

So, I installed 8.04 (“Hardy Heron”) on my HP Compaq nc6320 – after a happy time with 7.10. Everything went well, as it usually does with Ubuntu, except for the configuration of my wireless network card (the built-in Intel 3945-card). It turns out that Ubuntu no longer uses Intel’s ipw-drivers, but a new completely opensourced iwl-driver, which for some reason fails to do its job. I had to connect/disconnect to my WPA-encrypted wlan a lot of times after each boot to reach the internet. In addition to that the blue light on the wireless button did not work.

1. The solution is to change to the Wicd Network manager, which so far does its job much better than the default Network Manager. The installation of wicd is explained on the Wicd download page.

2. For the blue light on the network button to work, I found out that I had to enable Bluetooth in the BIOS. That’s a bit annoying since I don’t use it, but anyway…

Quite frankly I am a bit critical to the change from the ipw-drivers to iwl, since the ipw-drivers worked fairly well for me, and the iwl-drivers seem to be on a rather early stage of development.

I have a Dell Optiplex GX 270 in my office, with a Dell 1703 FP flat panel screen. When I installed Ubuntu Feisty Fawn (7.04), the splash screen never turned up. Few of the video modes you specify in Grub will work, except from vga=773. This problem occurs with some other computers from Dell – and other vendors, perhaps? Although it is not a huge problem, it is annoying. Continue reading ‘The Disappearance of the Splash Screen in Ubuntu’ »