Since around 2010 I have been running mail servers for myself and other organisations. In this post my notes on how I generally approach this are described. It shows how to set up a modern mail server capable of handling e-mail for multiple domains on Debian 11 “Bullseye” using the following software packages:

This post contains my personal notes on how to set up Dendrite, Matrix.org’s second-generation homeserver written in Go. These notes are not yet complete, but do contain the basics to get things going.

By default, nano on Debian Buster does not support syntax highlighting YAML files. Adding this template to nano will give you syntax highlighting when opening YAML files in nano. sudo tee /usr/share/nano/yaml.

sudo apt install unbound sudo tee -a /etc/unbound/unbound.conf << EOF > /dev/null server: interface: 127.0.0.1 interface: ::1 access-control: 127.0.0.0/8 allow access-control: ::1/128 allow # enable remote-control (useful when utilising monitoring tools such as netdata) remote-control: control-enable: yes EOF sudo systemctl restart unbound sudo apt install resolvconf sudo nano /etc/network/interfaces change nameservers to 127.

sudo nano /etc/sudoers add # Paswordless sudo %sudo ALL=(ALL) NOPASSWD: ALL