Simple_Firewall

🚀 Project: Custom Java Firewall 🔒 A custom firewall using Java, designed to enhance network security by blocking or allowing traffic based on specified IP addresses or domain names. Key Features: IP & Domain Blocking: Seamlessly block or unblock specific IP addresses and domains directly through an intuitive Java-based interface. Hosts File Management: The firewall modifies the system’s hosts file to effectively reroute traffic, preventing access to blocked sites. Automatic DNS Cache Flush: Ensures that changes are applied instantly by automatically flushing the DNS cache after modifications. Persistent Blocking: Implemented file handling to store and reload blocked entries across sessions, ensuring consistent protection. User-Friendly Interface: Developed a console-based interface that provides clear feedback and error handling, making it easy to manage blocked entries. Skills & Technologies: Java: Advanced programming for network security applications. Networking & Security: Practical understanding of IP addressing, domain name systems, and system-level configurations. File Handling: Manipulating critical system files with appropriate permissions for security-related tasks. Error Handling & Debugging: Implementing robust solutions to manage deprecated APIs and ensure smooth operation across different environments.