1.2 KiB
User Management
The root user (also known as the superuser or su) can access any file, make system changes, and lots of room for security vulnerabilities. For this reason you should aspire to run services as a non-root user.
Create a non-root user
useradd USERNAME
Where username can be anything, but should reflect the service/jail's name for diagnostic.
Then a password should be created as some commands require a non-blank password to be inserted:
passwd USERNAME
If you want the ability to run commands as root, add the user to the sudo group
usermod -aG sudo USERNAME
This WILL require a non-blank password, and any command run with sudo will be run as root not as the user. But it saves time compared to switching users to root to install/change things then switching back.
Switch to user
su -l USERNAME
Put a password on Root
While logged in as root run passwd
Common tweaks
Update repository list
sudo apt update
Install common services
sudo apt install nano wget curl git
Set Static IP
See Networking
Install Docker
apt install curl && cd /tmp && curl -fsSL https://get.docker.com -o get-docker.sh && sudo sh get-docker.sh && cd ~ && docker