Linux Server Hardening and Auditing

This is an Ansible collection that automates security hardening for Linux operating systems, databases, web servers, and SSH services. It provides a declarative, modular architecture that enforces idempotent security configurations, ensuring that each task only applies changes when the current system state deviates from the desired security baseline. The collection organizes security configurations into reusable Ansible roles, each targeting a specific system component. It includes roles for hardening OpenSSH with key-only authentication and disabled root login, securing MySQL and MariaDB ins

This project is a collection of automated hardening frameworks and Ansible roles designed to secure Linux systems, databases, SSH services, and web servers. It functions as a configuration framework that reduces the attack surface of Linux distributions through the automated enforcement of security policies. The collection provides specific security baselines for a variety of services, including MySQL databases, OpenSSH daemons, and web servers such as Nginx and Apache. These roles are designed to remove insecure defaults, enforce secure authentication methods, and align system configurations

Lynis is an automated security auditing and system hardening framework designed for UNIX-based operating systems. It functions as a command-line utility that inspects local system configurations to identify security vulnerabilities, configuration weaknesses, and compliance gaps. By executing a series of modular tests, the tool generates actionable reports and remediation suggestions to assist in strengthening system defenses. The project distinguishes itself through a highly modular architecture that relies on shell-script-based execution and native system inspection. Users can define custom

Opensnitch is a host-based application firewall for Linux that monitors and intercepts outbound network connections in real time. By hooking into kernel-level interfaces, it tracks system-wide network activity and maps connection attempts to specific local processes, allowing users to explicitly permit or deny traffic on a per-application basis. The project distinguishes itself through its ability to manage security policies across multiple distributed nodes from a single, unified dashboard. This centralized management is secured via encrypted socket communication, enabling consistent rule en

This project is a security compliance tool and configuration auditor designed to evaluate Docker deployments against industry security benchmarks. It functions as a script-based scanner that identifies misconfigurations and vulnerabilities within both the host operating system and container settings. The tool specifically implements the Center for Internet Security standards for Docker to verify host and container configurations. It enables a hardening workflow by comparing system states against these standards to identify security gaps and document compliance status. The audit engine suppor

Linutil is a Rust-based system configuration toolbox designed to automate software installation, hardware setup, and security baseline enforcement across various Linux distributions. It functions as a high-performance utility for executing batch configuration jobs and managing system baselines through a terminal interface. The project provides a distribution-agnostic setup manager that allows users to configure hardware peripherals and install desktop environments across different Linux versions. It includes a specialized firewall configuration tool for applying standardized network traffic r

This project is a comprehensive network traffic orchestrator and server infrastructure manager designed to provide centralized control over secure tunneling, routing, and security policies. It functions as a web-based dashboard that enables administrators to deploy and maintain network services, enforce access restrictions, and manage traffic flow through a private server environment. The platform distinguishes itself by integrating advanced traffic anonymization and routing capabilities, including support for relay networks and secure tunnels to bypass regional restrictions. It provides gran

linux-exploit-suggester is a diagnostic utility and vulnerability scanner designed to identify potential kernel exploits on Linux systems. It functions as a privilege escalation auditor by matching system information and kernel versions against a database of known security flaws. The tool differentiates itself by filtering and ranking exploits based on specific system properties and runtime security configurations. It evaluates kernel hardening settings, such as memory protection mechanisms, to discard inapplicable exploits and prioritize candidates by their probability of success. The softw

This project is an infrastructure as code framework and library of reusable playbooks designed for server configuration and DevOps workflow automation. It provides a Linux server configuration suite and specialized tools for provisioning multi-node Kubernetes clusters to support containerized applications. The library enables the automation of infrastructure tasks and the orchestration of multi-server workflows. It includes specific logic for deploying containerized workloads and managing application environments across different hosting platforms. The codebase covers broad capability areas

Fail2ban is an intrusion prevention system that monitors system log files to detect malicious activity and automatically enforce security policies. By parsing log data in real time, the tool identifies patterns of unauthorized access or repeated authentication failures and responds by dynamically updating network access control lists to restrict offending sources. The software functions as a firewall automation tool that maintains stateful tracking of suspicious behavior across various network services. It utilizes a regex-driven pattern matching engine to identify specific attack signatures,

Sidekick is a command-line tool that provisions bare VPS servers, transfers Docker images, manages secrets, and orchestrates zero-downtime deployments across single or multiple server instances. It handles the full deployment pipeline from a local machine, building container images locally and transferring them directly to the server without requiring a remote container registry. The tool distinguishes itself through an integrated approach to security and automation. It encrypts environment variables locally using SOPS and Age keys, then decrypts them on the server at deploy time for runtime