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Category: Linux

Disable dnfdragora-updater in Fedora

Disable dnfdragora-updater in Fedora

dnfdragora-updater is responsible to look for new package updates to your system. By default it is configured to do so every 180 minutes.

The problem is, it will from time to time begin to eat 100% of a cpu core for nothing and slow down the system. So, what can you do about it?

  1. do kill the process if the problem occures
  2. reconfigure dnfdragora to look less frequently (and hope this will resolve or at least mitigate the problem)
  3. disable dnfdragora-updater completely, do package updates by yourself with dnf

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Fedora 30, Virtualbox and libxcrypt

Fedora 30, Virtualbox and libxcrypt

It is a never ending story. New dist release, new problems with Virtualbox.

What is the current problem with a Fedora 30 guest on a Windows host and Virtualbox 6.0.8? Well, the guest additions won’t work, especially vboxadd.service refuses to start.

After asking my search engine of choice it revealed the libxcrypt to be the culprit. There are some changes mentioned at https://fedoraproject.org/wiki/Releases/30/ChangeSet and it is referenced at https://forums.virtualbox.org/viewtopic.php?f=3&t=92953.

Solution:

Install the libxcrypt-compat package and the vboxadd.service will start again, problem fixed.

Strange mouse behaviour with Fedora 28 in Virtualbox

Strange mouse behaviour with Fedora 28 in Virtualbox

I use Fedora 28 with XFCE as a virtual machine in Virtualbox 5.2.12, hosted on Windows 10.

In full screen mode this works really well.

But suddenly I had huge problems with my left mouse button. In some windows it worked, in others it didn’t and vice versa. After trying random things, it worked for some time, then stopped again. Or didn’t work at all.

The system was actually unusable any more.

It took some time until I realized this strange behaviour was caused by the latest kernel update to 4.17

As soon as it was clear I just had to use the old 4.16 kernel the next steps where easy.

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Configure Windows keyboard shortcuts in XFCE

Configure Windows keyboard shortcuts in XFCE

My windows manager of choice for Linux is XFCE.

While working in XFCE I realized that I got so accustomed to the Windows 10 keyboard shortcuts for tiling windows, I wanted to have the same functionality in XFCE.

And it is no problem to make that happen.

Just go to Settings -> Windows Manager -> select the Keyboard tab. Then scroll down to “Tile windows to the …”, mark the entry you want to change and click the “Edit” button. Follow the instructions.

To tile the window to the left enter: <Super(Windows key)> + <left arrow>

What is “Kali Linux Light”?

What is “Kali Linux Light”?

Do you know the difference between “Kali Linux 32 bit” and “Kali Linux 32 bit Light”?

There are several ISO images to choose from when it comes to downloading Kali Linux. Most of them are quite obviously named: “Kali Linux 64 bit XFCE” – no doubt about that.

But theres is no hint or easy way to find documentation about the ingredients of this considerably smaller installation variant “light”.

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