Port scanners help you understand how your network ports are being used by triggering periodic scans. Identifying port statuses with port scanners Some of the services using these ports include: The services that can access these ports are established and are not subject to change. These ports enable packet exchange between a host and a specific set of services. Between the Transmission Control Protocol (TCP) and User Datagram Protocol (UDP), there are 65,535 ports associated with an IP that are constantly being used by services and applications to send and receive message packets.Īmong these 65,353 ports, ports numbered from 0 to 1023 are the well-known ports. They help your network components and services exchange information by passing network packets. Ports are the enablers of network communication.

In this post, we discuss what open ports are, their vulnerabilities, and how you can defend your network with port scanners. This makes port scanners an indispensable tool to ensure network security. Port scanners help you identify, inspect, and analyze network ports, and aid in reducing your network’s attack surface by closing open ports. To tackle the risks introduced by open ports, network admins rely on port scanners. This is because open ports can expose your network to several security vulnerabilities. When it comes to securing your network from intrusion or attacks, one of the most commonly followed security measures is to regularly scan your network ports and close all open ports.

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