Ports in the hardware field are also called interfaces, such as USB ports and serial ports.
Ports in the software field generally refer to communication protocol ports in the network for connected services and connectionless services. They are abstract software structures, including some data structures and I/O buffers.
Extended data:
1, 8080 ports
Service: HTTP
Description: For;
5. Port: 25
Service: SMTP；;
Description: The port opened by SMTP server is used to send mail.
6. Port: 80
Service: HTTP
Description: used for web browsing.
7. Port: 102
Service: Message Transfer Agent (MTA)-x.400 over TCP/IP.
Description: Message Transfer Agent.
8. Port: 109
Service: post office protocol-Version 3
Description: The POP3 server opens this port to receive mail, and the client accesses the mail service on the server side.
9. Port: 1 10
Service: all ports of SUN's RPC service.
Description: Common RPC services include rpc.mountd, NFS, rpc.statd, rpc.csmd, rpc.ttybd, amd, etc.
Others: The default port of POP3 protocol is also 1 10.
10, port: 1 19.
Service: network news transfer protocol.
Description: news newsgroup transport protocol, which carries USENET communication. The connection of this port is usually when people are looking for a USENET server. Most ISPs only allow their customers to access their newsgroup servers. Opening the newsgroup server will allow anyone to post/read, access restricted newsgroup servers, post anonymously or send spam.
1 1, port: 135
Services: Location Services
Description: Microsoft runs DCE RPC endpoint mapper on this port as its DCOM service.
12, port: 137, 138, 139.
Service: NETBIOS name service
Note: Among them, 137 and 138 are often used for UDP connection, and this port is used when transferring files through my online neighbors. And port 139: the connection coming through this port attempts to obtain NetBIOS/SMB service. This protocol is used for windows file and printer sharing and SAMBA. WINS Regisrtation also uses it.
13, port: 16 1
Service: SNMP
Description: SNMP allows remote management of devices.
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