linux

infosec

Revoking a PGP Key from MIT's Key Server

Instructions on how to revoke your public PGP key from MIT's Key Server.

Read
linux

Yubikey OpenPGP Setup for SSH and Commit Signing

Some disorganized notes on how I set up my yubikey for SSH auth and git commit signing.

Read
linux

Setting up RAID1 with mdadm

How I setup RAID1 on a basic USB sata docking station.

Read
linux

Setting up Thinkpad dockd

I finally bought myself a dock for the thinkpad I use as my main computer. After using the new dock for some time I noticed that the screen would be stuck displaying black after leaving the system locked for a longer time. Looking around I found dockd which fixes that problem and automates the switching of display layouts.

Read
linux

Setting up Brother DS620 on Linux

I got myself a scanner so that I could scan some paperwork. Payslips, tax declarations. I went for the Brother DS620 because of it's small size and the fact that it had linux drivers available. Here's how I set it up on Ubuntu and a small cheatsheet for the future.

Read
sysadmin

Replacing Cronjobs with Systemd Timers

How to create systemd timers, that are in my opinion better than cronjobs.

Read
linux

Reverting to a Previous Kernel

Short how-to revert a linux kernel on Ubuntu 18.04

Read
sysadmin

Recovering a RAID 1 Drive in Linux

The steps I took to mount a RAID1 drive in Linux.

Read
linux

PulseAudio cheatsheet

PulseAudio seems to be the default sound system for many linux distributions, including mine. I often have to look up the commands when I want to e.g. change output ot a different device, such as my big "TV"-screen. Pulse seems to be a very powerful system in terms of configurability, I won't cover much of it. My interactions with Pulse is only as a desktop user.

Read
sysadmin

Webhotel using traefik, docker and ssh

Where I build a static site webhotel using traefik, docker, ansible and good old ssh.

Read