Linux Server Initial Setup

With Docker

source: https://docs.docker.com/engine/install/debian/#install-using-the-repository

apt install -y sudo
sudo apt update
sudo apt upgrade -y

= unattended upgrades =

sudo apt install -y unattended-upgrades
sudo sh -c 'echo "APT::Periodic::Update-Package-Lists \"1\"; APT::Periodic::Unattended-Upgrade \"1\";" > /etc/apt/apt.conf.d/20auto-upgrades'

= install basic tools =

sudo apt install -y git ca-certificates curl rsync pass p7zip-full unzip fail2ban ufw
sudo install -m 0755 -d /etc/apt/keyrings

= set up docker =

sudo curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc

= Add the repository to Apt sources: =

echo \
"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian \
$(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

sudo apt update
sudo apt install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
sudo usermod -aG docker $USER

Without Docker

apt install -y sudo
sudo apt update
sudo apt upgrade -y
sudo apt install -y git ca-certificates curl rsync pass p7zip-full unzip fail2ban ufw
= unattended upgrades =
sudo apt install -y unattended-upgrades
sudo sh -c 'echo "APT::Periodic::Update-Package-Lists \"1\"; APT::Periodic::Unattended-Upgrade \"1\";" > /etc/apt/apt.conf.d/20auto-upgrades'
systemctl reload postfix