如何查看计算机端口状(国外英文资料).docVIP

如何查看计算机端口状(国外英文资料) When it comes to ports, its an old topic, but everything starts with it and has to say. What is the port, for example, you live in a house, want to let others come to visit you, to open a door in the house, you have a lovely cat, for its import, dedicated to it in order to repair a door to the garden, and opened a door All these doors for the access to this house are called ports, and these ports for others to come in call them service ports. You have to visit a person named Zhang San, Zhang three should open a door to allow you to - service port, or will be shut out. When you go, first you open a door at home, then pass through the door and walk straight into the door of the three door. In order to access others, the door opens in their house, called the client port. It is randomly opened and actively opened and closed automatically after the visit. It is different from the nature of the service port, the service port is opened a door, waiting for other people to visit, and the customer port is active to open a door to open someone elses door, this must be clear. Heres a brief explanation of the concept of ports from a professional point of view. Networked computers to communicate with each other must use the same protocol, communication protocol is a computer language, the computer must speak a language to communicate with each other, the common language of Internet is tcp/tp, it is a set of protocols, it provides two kinds of protocol TCP and UDP in the fourth layer transport layer network. Port is the two open protocol, port into the source and destination ports, the source port is open the machine, the destination port is another computer and the communication port of the source port active open port and customer service port passive connection two. In Internet, when you visit a web site, you open a port on your machine to connect to a port of your web server, as well as other people visit you. That is the computer communication like visit ea