Introduction In computer networks, ICMP (Internet Control Message Protocol) ping requests are a common tool used to verify the accessibility of devices and servers. Network and system administrators often rely on this method to quickly determine whether a device is operational and whether network connections are functioning properly. ICMP ping tests the reachability of an IP address by sending small
Introduction In today’s interconnected world, computer networks form the backbone of data transmission across the globe. Within these networks, vast amounts of data are constantly being exchanged. Understanding network traffic is crucial for various applications, including network security, troubleshooting, and monitoring network performance. Scapy, an open-source Python library, provides a powerful toolset for manipulating network protocols. In this article, we will introduce you to the basics of
Introduction Network security and analysis have become more critical than ever in today’s information technology landscape. Network administrators and security experts rely on various tools to effectively monitor and understand the traffic on their networks. In this article, we will explore how to sniff and analyze ARP (Address Resolution Protocol) traffic using Scapy, a Python-based network packet manipulation library. Learning Objectives
Introduction In the digital age, safeguarding sensitive information during transmission across networks is paramount. Encryption is a fundamental technique for ensuring data confidentiality and preventing unauthorized access. However, there are legitimate scenarios where analyzing encrypted network traffic becomes necessary, such as for security monitoring, troubleshooting, or debugging. This article explores two scenarios: one where we possess the encryption key, enabling decryption, and another where the key
Introduction In today’s networked world, securing DNS traffic is crucial. DNS, being one of the core protocols of the internet, is often targeted by attackers for DDoS and DoS attacks. Monitoring DNS traffic for unusually large packets can help in detecting these attacks early. This article walks you through creating a Python-based tool using pyshark and colorama to monitor DNS traffic and alert you to
Introduction Network security is one of the most critical priorities in the digital world. Ensuring network security involves not only protecting against external attacks but also detecting suspicious activities occurring internally. Effective network traffic monitoring and SSH tunneling detection are crucial in achieving this. Techniques like tunneling can be used to bypass security measures or leak data. In
Introduction Network security is one of the foremost priorities for businesses and individuals today. However, when devising network security strategies, employing effective tools to analyze network traffic and identify potential vulnerabilities is also crucial. In this article, we will explore developing an FTP listener application using Scapy, a Python-based tool for listening to network traffic and monitoring FTP (File Transfer Protocol) communication. Learning
Introduction The rapid advancement of technology and the increasing complexity of cyber threats require continuous innovation and adaptation in the cybersecurity world. This dynamic field necessitates security professionals to constantly develop new tools and techniques. In this article, we will thoroughly explore how to begin your journey in developing cybersecurity tools using Python. Why Python in Cybersecurity? Why