Category: Tutorials
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How to: Dualboot Windows +Bitlocker and Ubuntu +LUKS
Preparation Tested with Tested with: Win 11 Pro 23H2, Ubuntu 23.10Last Update: 2024-09-26 Environment Steps 1. Create partitions 2. Install Windows 3. Install Ubuntu Both systems can boot up properly now. You will be asked by GRUB which operating system to boot now: Ubuntu or Windows Boot Manager. 4. Activate Windows Bitlocker Good to know…
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How to: Install Elastic Stack on Debian 11 Bullseye
Meta Last update: Sept 2022Tested with: Debian 11, Elastic Stack 8.4 1. Preparation This is my very personal configuration. All you really need is to have the sudo-package installed. Everything else is optional. 2. Elasticsearch You will get an output like: Start the Elasticsearch service and check if the service is running after a short…
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How to set up Postfix on Debian 11 to use a mailhoster with SMTP
Latest update: Aug 2022 Important notes Installation of packages Configuration of Postfix Configuration of password file Testing Troubleshooting
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How to set up MSMTP on Debian to use a mailhoster with SMTP
Latest update: Jul 2022 Steps Note: mailutils is needed for sending mail via “mail” on the command line. Troubleshooting Credits
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How to: Migrate some specific app profiles on macOS
Meta Latest update: Nov 2021Tested with: macOS Big Sur, macOS Monterey If you migrate from one machine to another make sure you follow those steps and you’ll get rewarded with a hassle-free migration. Get a pendrive and copy the following files as zipped packages: Google Chrome File type Path and notes main app /Applications/Google Chrome.app…
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How to: Monitor network traffic from a device (mobile phone, tablet, notebook)
Meta Last update: Feb 2021Tested on: Ubuntu 20.04 Foreword In this tutorial we will use a regular computer with two USB wifi adapters: one for the connection to our internet/wan and the other one for creating our local wifi hotspot. You can substitute one of the wifi adapters with an ethernet adapter of course. I’m…
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How to build a more secure personal computer
Latest update: Jan 2021 This guide is based on the BIOS UEFI replacement called Coreboot which runs on an ASUS F2A85-M or F2A85-M PRO mainboard with an AMD A10-5800K CPU with integrated graphics. 1. Introduction and aim This initial idea came up with the uprising problems and vulnerabilities of Intel ME and AMD Secure Technology (PSP). After having…
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How to: Install a privacy friendly Jitsi Meet on Ubuntu and run it securely
Meta Last update: Jan 2021Tested with: Ubuntu 21.04 and 18.04 Prerequisites If you intend to run Jitsi on your new publicly accessible server, reachable under meet.yourdomain.com, you should change the name of your host accordingly in both files and reboot your machine: These instructions also take care of the TLS certificate. If the server is…
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How to: Backup or sync files with 7-Zip CLI
Last update: Dec 2017 Motivation Sometimes we just want to backup files with very simple tools in order to keep it simple and stupid. Although it’s well documented, many people do not know, that the 7-Zip command line tool can also update the backup target in case some files changed within the source. Environment Requirements…