The computer ports are as follows:
0 Port: Invalid port, typically used to analyze operating system
1 Port: Transmission Control Protocol port Service multi-Switch Selector
2 Port: Management utility
3 Port: Compression process
5 Port: Remote
View the complete version: [-- Port details and how to enable and disable ports --]
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TCP/UDP Common port number
7 Echo (PING)9 DiscardDaytimer19 Word Fuzhou Builder20/TCP FTP Data21/TCP FTP Control File Transfer Protocol22/TCP SSH Secure Login, File transfer (SCP), and port redirection23/tcp Telnet Unsafe Text transfer25/tcp SMTP
In the computer network OSI model, the TCP port completes the function specified by the layer-4 transmission layer. Many applications connected to our computer and network are implemented through TCP ports. This article will share with you some
The port can be divided into 3 main categories:
1) Accepted ports (well known Ports): from 0 to 1023, they are tightly bound to some services. Usually the communication of these ports clearly indicates the protocol of some kind of service. For
ping command and network port:1.Ping 127.0.0.1127.0.0.1 is the local circular address, ping General instructions that the TCP/IP protocol works properly, otherwise TCP/IP is not normal.2.Ping IP address for this computerUse the ipconfig command to
The ports can be divided into 3 main categories:
1) Recognized ports (well known Ports): from 0 to 1023, they are tightly bound to some services. Usually the communication of these ports clearly indicates the protocol of a certain service. For
Computers communicate with each other through ports. For example, when accessing a website, Windows opens a port (such as port 1025) on the local machine and connects to a port of the remote website server, this is also true when others access you.
1024 The following is reserved for the system, and from 1024-65535 is used by the userFor personal writing applications, try not to use a port number between 0 and 1024.1024 to 65535 we can program with. This is not a Linux rule, it is the socket
Simple understanding of Http and TCP, and understanding of tcp
The TCP protocol corresponds to the transport layer, while the HTTP protocol corresponds to the application layer. Essentially, the two are not comparable. Http is based on TCP. When the
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