Port 21 is the default control port for FTP (File Transfer Protocol), actually it is a legacy protocol used for transferring files between a client and a server over a network. It is responsible for session management, authentication, and command exchange, such as listing directories, retrieving files, or uploading files. Below is an overview of […]
Port 20 is one of the ports assigned to the File Transfer Protocol (FTP) and is specifically used for data transfer in Active Mode FTP sessions. Basically it used for uploading and downloading files. It operates over TCP (Transmission Control Protocol), ensuring reliable and ordered delivery of data. Below is an overview of Port 20:
A Critical Ports refers to a network ports that are important for the functioning, security, or accessibility of a specific system or service. These ports are often targeted by attackers because they can use these ports to exploit respective vulnerability of an organization or network devices. Characteristics of Critical Ports: Essential Functionality: These ports are