🛠️ linuxSetup-script

A simple, powerful, and beginner-friendly Bash automation script that sets up a fresh Ubuntu VM like a pro. It configures hostname, timezone, installs core packages, creates users, configures secure SSH, and logs everything — making this a good "Phase 1" learning project for aspiring SysAdmins, DevOps engineers, or for you automation nerds.

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📦 Use Case: Why This Exists

You're setting up a brand-new Ubuntu virtual machine or VPS — and instead of doing the boring stuff manually (changing hostname, installing packages, creating users, configuring SSH), you just want to drop in one script and let it take over.

Whether it's for:

• Testing a clean environment
• Automating base server setup
• Learning Bash and Linux internals
• Practicing DevOps workflow

This script saves time, enforces best practices, and gets you used to thinking like a system engineer.

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🖥️ How It Connects to Your VM

• 🔌 The VM is created in Bridged Adapter mode so it gets a real IP on your local network.
• 📤 You use scp (secure copy) from your host machine to send the script over to the VM via that IP.
• 🔐 The script is then run inside the VM, where it:
  • Installs packages like vim, curl, ufw, etc.
  • Sets the hostname and timezone
  • Adds a new user with sudo rights
  • Configures the SSH server securely (no root login, no password auth)
  • Optionally enables a firewall, SSH key login, custom MOTD, and more

This is exactly how you’d bootstrap a new server in the real world.

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📁 Folder Structure

linuxSetup-script/
├── setup.sh           # 🔧 Main Bash script with all setup logic
├── logs/              # 🗂️ Where setup logs get stored (timestamped)
├── scripts/           # 🔁 For future modular sub-scripts or helpers
├── configs/           # ⚙️ Optional static config files (e.g., SSH banners, envs)
├── validate.sh        # ✅ (Optional) Verifies everything was configured properly
└── README.md          # 📖 This file