Complete Guide: Debian Server Setup and Configuration

Part 1: Installing Debian

1. Download Debian ISO from debian.org
2. Create bootable USB using tools like Rufus or Etcher
3. Boot from USB and follow installation steps:

• Choose language and location
• Configure network
• Set up users and passwords
• Partition disks
• Complete base system installation

Part 2: Fixing "Not in Sudoers File" Error

Method 1: Using visudo

1. Login as root:

su -

1. Open sudoers file:

visudo

1. Add your user (replace 'robee' with your username):

robee ALL=(ALL:ALL) ALL

1. Save and exit (Ctrl+X, then Y, then Enter)

Method 2: Adding User to Sudo Group