Port numbers are often reserved for specific protocols, like port 25 for SMTP, ensuring standardized port usage and forwarding across networks. Each port is assigned a unique number, with 65,536 ports available for communication between User Datagram Protocol (UDP) and Transmission Control Protocol (TCP) ports.įor instance, to enable remote desktop on a Windows PC, you'd need port 3389 open and directed to the correct computer. A port is a virtual connection point used to route network information to specific applications on a designated device. The port scanner tool helps you identify open ports on your network, enhancing security by detecting potential vulnerabilities.
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