Linux SysAdmin Tool

Overview

The Linux SysAdmin Tool is a modular command-line application designed for simplifying system administration tasks on Linux. It includes functionalities like user management, service management, filesystem handling, network diagnostics, and security management.

Project Structure

linux_sysadmin_tool/
├── core.py                  # Core utilities: logging, configuration, validation
├── user_management.py       # User management functionalities
├── service_management.py    # Service management functionalities
├── network_management.py    # Network diagnostics and interface management
├── filesystem_management.py # Filesystem formatting and mounting
├── system_monitoring.py     # Resource and performance monitoring
├── security_management.py   # Security updates and configurations
├── config.yaml              # Configuration file for default settings
├── main.py                  # Main entry point with dynamic menu
└── tests/                   # Directory containing pytest scripts
    ├── test_core.py
    ├── test_user_management.py
    ├── test_service_management.py
    └── test_filesystem_management.py

Setup Instructions

Prerequisites

• Python 3.x: Ensure Python 3 is installed.
• Required Modules: Install the following Python libraries:

  pip install pytest pyyaml

• Root Privileges: The tool requires sudo access for certain operations.

Configuration

Edit the config.yaml file to specify default settings:

default_filesystem: ext4
default_mount_point: /mnt
default_log_level: DEBUG

• default_filesystem: Filesystem type for disk operations.
• default_mount_point: Default directory for mounting disks.
• default_log_level: Logging verbosity.

Running the Tool

1. Navigate to the project directory:

   cd linux_sysadmin_tool

2. Launch the tool:

   python3 main.py

Features and Usage

User Management

• Add a User: Creates a new system user.
• Delete a User: Removes a user and their home directory.
• Reset Password: Resets the password for a user.
• Modify Group Membership: Adds or removes a user from groups.
• Lock/Unlock User Account: Secures or enables access to an account.

Service Management

• Start, stop, restart, enable, or disable services.
• Check the status of a service or list all running services.

Network Management

• Ping a Host: Test connectivity to a network address.
• Display Interfaces: List all active network interfaces.
• Test Port Connectivity: Verify if a specific port is open.

Filesystem Management

• Format and Mount Disk: Format a disk and mount it to a directory.
• Check Disk Space: Show disk usage statistics.
• Resize Filesystem: Adjust the size of a filesystem.

System Monitoring

• Monitor CPU, memory, and disk usage.
• Display active processes and system load.

Security Management

• Apply system security updates.
• Configure SSH settings.
• Manage Fail2Ban or rootkit scanning.

Testing the Project

Run Tests

Use pytest to validate the functionality:

pytest tests/

Test Coverage

• test_core.py: Tests for configuration loading and input validation.
• test_user_management.py: Tests for adding and deleting users.
• test_service_management.py: Tests for managing system services.
• test_filesystem_management.py: Tests for disk formatting and mounting.

Error Logs

Logs are saved to sysadmin_tool.log in the project directory. Adjust the logging level in config.yaml if needed.

Extending the Tool

To add new features:

1. Create a new .py file in the project directory.
2. Define your functions and integrate them with the main.py menu.
3. Add a test file in the tests/ directory to ensure reliability.