Computer networks over the Internet play a vital role in connecting individuals and organizations around the world. These networks allow fast and efficient exchange of data and information, contributing to the development of education, commerce, and healthcare. Computer networks rely on a set of protocols that organize communication between different devices. The Internet has also led to the emergence of modern applications such as cloud computing and social media platforms. Information security is one of the most important challenges facing computer networks today. Therefore, developing secure and reliable networks has become essential in the digital age.