The procedure that takes place between two TCP/IP nodes to establish a connection. Known as the "SYN, SYN-ACK, ACK handshake," computer A transmits a SYNchronize packet to computer B, which sends back ...

This month, we shift our focus to an important security issue. We will combine some information about IP addresses, the TCP three-way handshake, and the role of the firewall. This security issue is ...

The client was implemented using raw sockets in C++, providing low-level control over packet creation and transmission. Unlike standard socket programming, raw sockets bypass the operating system’s ...

Client Server │ │ │──── SYN (seq=x) ───────────── │ 1. Client sends SYN with initial seq number │ │ (state: SYN_SENT) │ │ │ ─── SYN-ACK (seq=y, ack=x+1) ─│ 2. Server acknowledges + sends its own SYN │ ...

When I use the netstat command to look at the open TCP/IP connections on my PC, there are connections that should be closed that are in the TIME_WAIT state. What is this, and why do connections stay ...

Not sure if this makes more sense here, or in the boardroom. What are some good hypotheticals to demonstrate a working knowledge of TCP/IP- I've asked a couple of these before: * Describe in as much ...