Mine: You can open a command prompt with windows+R and enter ipconfig/all to view the IP address of the computer.

Enter netstat-a-n|findstr"3389 "at the command prompt to view the situation of port 3389.

Idea View local service port and root path?

① Enter the ip address in the address bar of the computer browser (the prompt on the back of the router), and then press Enter. ② Then enter the user name and password in the pop-up login box (also prompted on the back of the router) → enter the setting interface. ③ Click forwarding rules → virtual server → add new entry in the left menu. ④ Add a new entry→ Common service port number (different ports are used for different functions). For example, to build an 80-port website, ftp will add 2 1 port, open the remote desktop connection service port, add 3389 port, and so on?

What is port 3389?

Port 3389 in the computer is the service port of Windows2000(2003)Server Remote Desktop, through which remote desktop and other connecting tools can be used to connect to the remote server. If you connect to port 3389 and enter the user name and password of the system administrator, you can operate the remote computer like this machine, so the remote server will generally modify the value of this port or close it.

If you want to continue using Remote Desktop after modifying the port number, and your computer has a firewall enabled, you must add the modified port number to the firewall exception. Otherwise, neither 3389 nor the modified port number will connect to the remote desktop.

Port 23 in the computer is a telnet port. Telnet protocol is a member of TCP/IP protocol family, and it is the standard protocol and main mode of Internet remote login service. It enables users to complete the remote host work on the local computer.

Connect to the server using the telnet program on the end user's computer. Using Telnet service, hackers can search for services that remotely log on to Unix and scan the type of operating system. Moreover, in Windows2000, there are many serious loopholes in the Telnet service, such as privilege elevation and denial of service, which can crash the remote server.

How to set up routing to realize a PC accessing the internal network from the external network through port 3389? Is the router digitally connected?

Fix the IP of the intranet computer, set this IP as the DMZ host of the route, and then open the port and IP mapping, so that the extranet users can access and inquire about this computer through the extranet IP of the route.

How to resolve public domain name into intranet ip?

1. Install and log in the quick resolution client locally on the intranet server or another host in the LAN.

2. Add intranet mapping. Here, the internal network address of the application can be changed to the external network address by direct one-step setting.

3. The information related to the mapping is as follows:

Application ports (common server ports): port 80, port 2 1, port 3389, port 25, port 1 10, port 1723, etc.

Public * * * Port Type: Virtual Port.

Intranet address: it can be a fixed intranet IP or computer name.

4. Achieve access to external domain names. After the domain name mapped by the internal network quick resolution port takes effect, it can be accessed through the domain name and the external network port in any online environment.