Server address refers to Internet Protocol Address, which is the abbreviation of IP address. IP address is a unified address format provided by IP protocol, which assigns a logical address to each network and each host on the Internet to shield the difference of physical addresses. At present, there are some ip proxy software, but most of them are charged.

Server port:

With the development of computer network technology, the original physical interfaces (such as keyboard, mouse, network card, graphics card and other input/output interfaces) can no longer meet the requirements of network communication. As the standard protocol of network communication, TCP/IP protocol solves this communication problem. Integrating TCP/IP protocol into the kernel of the operating system is equivalent to introducing a new input/output interface technology into the operating system, because an application program interface called "Socket" is introduced into the TCP/IP protocol. With such interface technology, computers can communicate with any computer with Socket interface through software. Port is also called "socket interface" in computer programming.

The server can be one of the most important reasons for Web server, FTP server, mail server, etc. Various services provide different services through different ports. For example, TCP/IP protocol stipulates that Web uses port 80, FTP uses port 2 1, and mail server uses port 25. In this way, the computer can communicate with the outside world without interference through different ports.

According to experts' analysis, there can be up to 65,535 server ports, but in fact there are only dozens of commonly used ports, which shows that there are quite a few undefined ports. This is why so many hacker programs can define a special port in some way to achieve the purpose of intrusion. In order to define this port, you need to rely on a program to automatically load it into memory before the computer starts, and forcibly control the computer to open that special port. This program is a "backdoor" program, and these backdoor programs are usually called Trojan horse programs. To put it simply, these Trojan horse programs first implant a program in a personal computer by some means, open a specific port, commonly known as the "back door", and make the computer an extremely open FTP server (users have extremely high permissions), and then achieve the purpose of intrusion through the back door.