Increase the swapfile of your Raspberry Pi

If you're on a first generation Raspberry Pi you don't have much RAM, so it makes sense to increase the swapfile size to be able to do more with your Pi. I'll show you how! First, edit the file /etc/dphys-swapfile sudo nano /etc/dphys-swapfile Change the line: CONF_SWAPSIZE=100 To something like: [...]

By |2020-05-18T16:36:36+02:00May 18th, 2020|Tech Support|0 Comments

Linux Desktop: Enable NUMLOCK on login

This is just a quick one, as I always find it annoying to not have numlock enable automatically on Linux desktops. Overview (all distros) You will want to install the application numlockx, and then add it to your startup applications (the name and command of the entry being simply numlockx). [...]

By |2020-05-09T05:27:40+02:00May 9th, 2020|Tech Support|0 Comments

Disable SSH host verification for subnet

Sometimes you have to SSH into different devices with the same IP address, for example when you flash routers with OpenWrt and want to do initial configuration. One annoyance with that is fingerprint checking, as the fingerprint will be different for every new device but the IP will stay the [...]

By |2020-05-05T18:53:05+02:00May 5th, 2020|Tech Support|0 Comments

Auto-unlock encrypted Ubuntu

This guide is known to work with Ubuntu 18.04 and 20.04. You should be doing this setup as root, which is why I omitted sudo. The idea here is that we'll be copying the keyfile to the initramfs to automatically unlock the system drive, and once we want to destroy [...]

By |2020-05-01T03:27:42+02:00May 1st, 2020|Tech Support|0 Comments

How fast does your Linux system boot?

You can find out really easily with one simple command: systemd-analyze Which will output something like: Startup finished in 9.708s (firmware) + 3.692s (loader) + 46.909s (kernel) + 13.614s (userspace) = 1min 13.924s graphical.target reached after 12.063s in userspace So as you can see, my laptop takes ages to boot. [...]

By |2020-04-29T18:34:56+02:00April 28th, 2020|Tech Support|0 Comments