Network Packet Sniffing and Monitoring

The daily increase in the number of users on the network is causing a surge in network traffic, highlighting the importance of monitoring both user activity and network traffic to ensure smooth network operations. Monitoring network activity is challenging due to the large volume of packets on the network. Packet sniffing is a technique used to observe various network activities and identify vulnerabilities, enabling network administrators to bolster network security. This process involves inspecting data transmitted by other users on the network and is applicable to both switched and non-switched networks. Packet sniffers can function as administrative tools or be misused for malicious intent, depending on the user's goals. Sniffing can reveal passwords used in network connections such as Telnet, login, and FTP, as well as examine and capture packets traversing the network without modifying them. It decodes captured packets, allowing network administrators to interpret, analyze, and extract valuable information from packet content. Wireshark is an open-source network packet analyzer that can be employed to evaluate traffic, data packets, and their influence on network behavior. With its user-friendly graphical interface and support for numerous protocols, Wireshark is a versatile tool for network troubleshooting, security analysis, and protocol development. It also provides advanced features such as real-time packet capture, deep packet inspection, customizable filters, and precise network behavior analysis.