Network Sockets and Ports
Network sockets are software structures that represent the endpoints of a network connection. A pair of sockets fully specify a network connection, and these connections enable communication in both directions. There are three main types of network socket: datagram, stream and raw.
Using tcpdump: Options, Filters and Examples
'tcpdump' is a command-line tool available for UNIX based systems (including macOS and Linux) that captures network traffic and displays it on screen or saves it to a file. It is a simple but powerful tool for troubleshooting network problems, understanding protocols, investigating suspicious network activity, and much more.
Network Proxies: The Different Types Explained
Network proxies are seen in many networks and used by enterprises, service providers and individuals. Three of the primary uses for proxies are forward proxies (seen in enterprise networks), reverse proxies (which deliver web services) and privacy/anonymisation focused proxies.