Category Archives: Ubuntu

Setting the network MTU size

Though in general it is not necessary there are (rare) occasions when it is necessary to set the MTU size explicitly, generally caused by issues with path MTU discovery.

Posted in CentOS, Debian, Linux, Networking, Raspbian, RedHat, Ubuntu, Uncategorized | 2 Comments

Changes to Skype (and issues with sound quality)

I’ve been using Skype 4.3 for Linux quite happily with relatively few issues until now but since the older versions will no longer work I have had to upgrade.

Posted in Debian, Linux, Ubuntu | Tagged , | 7 Comments

Changing network device names

The latest versions of the kernel now rely on the BIOS enumeration of device names which means that the name of the network interface can change depending on your bus configuration (specifically where your network interface is connected).

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Configuring X Windows on a Virtual Machine

When using X windows on a virtual machine I have found that the screen resolution is detected automatically it can often default to a maximum resolution of 1024×768 pixels.

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Accessing the web from behind a firewall (without exposing your password)

If you are behind a web-proxy then you either need to configure the proxy settings or set the environment variable  http_proxy  first.

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Compairing version numbers

There are differences between versions of some of the relatively common utilities that occasionally make it necessary to check which version is installed in a script, but comparing version numbers in a script is quite hard – fortunately if you … Continue reading

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Set Linux Console Height and Width

On my Raspberry Pi and my much older AlphaServer have configured the system to use the serial port as the console, as this means I can use them ‘headless’ without having to plug-in a screen or keyboard (very useful if … Continue reading

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Display IP address in banner text

Rather then use the console when working on a system I generally prefer to connect remotely using ‘ssh’ as it is so much easier to be able to cut and paste from a terminal session on my workstation that way.

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Minimal GNOME 3 Install on Debian (jessie)

I thought it was time to sit down and see if I could work out how do a minimal installation of GNOME 3. It is not secret that it isn’t my favorite desktop but I’d thought I’d give it another … Continue reading

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Keyboard input with a timeout using Python

After just messing about and experimenting with my Sense Hat a bit I had a short python script that just loaded each ‘.png’ file it found in the current directory and displayed it on the 8×8 LED matrix.

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