# SSH Key Authentication Setup Guide

## Introduction
I'll guide you through setting up SSH key authentication for accessing our CS
server (cs-ssh.uwf.edu). This method is both more secure and convenient than
traditional password authentication, eliminating the need to enter your
password each time you connect.

## Key Concepts

### Public Key Authentication
SSH key authentication uses a pair of cryptographic keys:

* **Public Key**: Like a padlock that you can freely share. It's placed on the
  server you want to access.
* **Private Key**: Like the unique key that opens your padlock. Must be kept
  secret and secure on your computer.

### Benefits
* Increased security through cryptographic strength
* No need to remember or type passwords
* Protection against brute-force attacks
* Automated secure file transfers and remote operations

## Step-by-Step Instructions

### 1. Generate Your SSH Key Pair
Open a bash terminal and run:
```bash
ssh-keygen -t ed25519 -C "your_email@uwf.edu"
```

When prompted:
* Press Enter to accept the default file location
* Enter a passphrase (recommended) or press Enter twice for no passphrase

### 2. Verify Key Generation
Check that your keys were created:

```bash
ls ~/.ssh/
```

You should see two files:
* id_ed25519 (private key)
* id_ed25519.pub (public key)

### 3. Copy Public Key to Server
```bash
ssh-copy-id -i ~/.ssh/id_ed25519.pub your_username@cs-ssh.uwf.edu
```


### 4. Test Connection
Try connecting to the server:
```bash
ssh your_username@cs-ssh.uwf.edu
```

You should now connect without being prompted for a password.

## Important Security Notes
* Never share your private key
* Keep your private key file secure (600 permissions on Unix-like systems)
* Back up your private key securely
* If using a passphrase, remember it can't be recovered if forgotten