Revise README for Multi-Instance SSH Server Manager

Updated README to reflect changes in naming and added details about instance management.

ssh/README.md

@@ -1,78 +1,43 @@
-# Multi-Instance SSH Server Generator
 
-A lightweight Bash script that automatically creates, configures, and manages completely isolated OpenSSH server instances on Linux. 
+# Multi-Instance SSH Server Manager
-
+A lightweight Bash suite that automatically creates, configures, and safely removes completely isolated OpenSSH server instances on Linux. 
-Perfect for providing dedicated SSH access to specific teams, contractors, or applications without touching your primary server's SSH configuration.
+Perfect for providing dedicated SSH access to specific users, teams, or applications without modifying your primary server's SSH configuration.
 
 ## Features
-
+* **User Restriction:** Prompts for a username during setup, optionally creates the user, and uses `AllowUsers` to restrict the instance exclusively to them.
 * **Complete Isolation:** Each instance gets its own configuration directory (`/opt/custom_sshd/<name>`) and independent host keys.
 * **Auto-Port Assignment:** Automatically scans for the next available port starting from `2222` to prevent collisions.
 * **Systemd Integration:** Generates a dedicated `systemd` service for each instance so they start on boot and auto-restart if they crash.
-* **Auto-Firewall:** Detects your active firewall (`ufw`, `firewalld`, or `iptables`) and automatically opens the required TCP port.
+* **Auto-Firewall Management:** Detects your active firewall (`ufw`, `firewalld`, or `iptables`) to open the port on creation, and cleanly closes it on removal.
 
-## Prerequisites
+## Setup
-
+Make both scripts executable:
-* A Linux distribution using `systemd`
-* Root privileges (`sudo`)
-* `sshd` (OpenSSH Server) installed
-
-## Usage
-
-1. **Make the script executable:**
 ```bash
 chmod +x create_ssh_service.sh
-
+chmod +x remove_ssh_service.sh
 ```
 
-2. **Create a new SSH instance:**
+## Creating an Instance
-Pass the desired name of your instance as the only argument.
+Pass the desired name of your instance as the argument. You will be prompted to specify (and optionally create) the user who is allowed to connect.
+
 ```bash
-sudo ./create_ssh_service.sh dev_team
+sudo ./create_ssh_service.sh contractor
-
 ```
 
-
+**Connection Example:**
-3. **Connect to your new instance:**
-The script will output the assigned port (e.g., `2222`). Use it to connect:
 ```bash
-ssh -p 2222 username@your-server-ip
+ssh -p 2222 bob@your-server-ip
-
 ```
 
-## Management & Maintenance
+## Removing an Instance
 
+To cleanly tear down an instance, close its firewall port, remove its systemd service, and optionally delete the user data:
+```bash
+sudo ./remove_ssh_service.sh contractor
+```
+
+## Manual Service Management
 Every instance runs as its own systemd service named `custom-sshd-<instance_name>.service`.
-
+* **Check status:** `sudo systemctl status custom-sshd-contractor.service`
-**Check status:**
+* **View logs:** `sudo journalctl -u custom-sshd-contractor.service -f`
-
+* **Restart:** `sudo systemctl restart custom-sshd-contractor.service`
-```bash
-sudo systemctl status custom-sshd-dev_team.service
-
-```
-
-**View live logs:**
-
-```bash
-sudo journalctl -u custom-sshd-dev_team.service -f
-
-```
-
-**Restart the instance:**
-
-```bash
-sudo systemctl restart custom-sshd-dev_team.service
-
-```
-
-**Completely remove an instance:**
-
-```bash
-sudo systemctl disable --now custom-sshd-dev_team.service
-sudo rm /etc/systemd/system/custom-sshd-dev_team.service
-sudo rm -rf /opt/custom_sshd/dev_team
-sudo systemctl daemon-reload
-
-```
-
-Note: If you uninstall, you will need to manually remove the port rule from your firewall.