Here’s how it works. 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 ...

The connection procedure in TCP/IP is a so-called “three-way handshake.” First, a client sends a TCP packet with a SYN flag set and no payload (a SYN packet). The server replies by sending a ...

Unlike TCP, UDP does not follow the TCP three-way handshake, but uses a single UDP roundtrip. Thus, the QUIC protocol exponentially improves any web component’s network performances as it uses ...

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 ...

awaiting the remainder of the three-way handshake,” Akamai explained. “As each TCP session is held in this half-open state, the system will consume sockets that will in turn consume resources ...

In Figure B, you can see circled the TCP three way handshake for initiating a connection. Highlighting a packet in the upper frame shows a summary of the packet in the lower pane, as Figure B ...