How to start Win2000 Telnet

Telnet mode. This protocol service can effectively remotely log on to and control hosts. In most systems, this setting is disabled. So how to start it? Here we will briefly talk about the process of starting Win2000 Telnet. Telnet is a character-Mode Terminal service that enables users to enter the remote host over the network and perform operations on the remote host before sitting on the keyboard of an online computer. This type of connection can occur in the LAN or through the Internet. The connected computer is called the Telnet Server, and the machine you are using is called a client or terminal. The win2000 system has a component called terminal service, which is a graphical Terminal Service with more powerful functions, but also has higher requirements on the system. Sometimes we just want to perform some simple remote management through the network, so using Telnet is still a good choice.

The Win2000 Telnet service is disabled by default. You can start it in multiple ways. The first is the manual start method:

1. Type net start telnet at the command prompt.

2. Click Start, point to program, point to management tool, and then click Telnet Server Management. Type 4 at the command prompt to start the Win2000 Telnet service.

3. Click Start, point to program, point to management tools, click Services, right-click Telnet service, and then click Start.

If you want to enable Telnet automatically when win2000 is started, you can do the same. Open the "Computer Management" tool, click Services, find the Win2000 Telnet Service, right-click, and click Properties. In the start Type box, click automatic.

Next, let's take a look at how to use the Telnet service. The simplest method is to directly input the following in command line mode:

Telnet computername (or IP) Portnumber

The Telnet Service uses port 23 by default. If the server side is not modified, you can leave Portnumber unspecified when connecting the client. If the client uses the win98 operating system, you can use a dedicated Telnet client and enter Telnet in the Start menu to start it.

The above is a basic usage method. Next let's take a look at some common problems in the use process. The first is about client login verification. When we connect to the Telnet server on the client, we often see the following error message:

Server allows NTLM authentication only

Server has closed connection

This is because, by default, the Win2000 Telnet service is started using the NTLM authentication method, which avoids transmission of plaintext passwords and improves security. However, Telnet client clients of win98, nt4.0, and other systems do not support this method, which causes inconvenience. Sometimes we want to prompt us to enter the user name and password when logging on to Telnet, so we can set it as follows:

Start Menu | program | administrative tool | Telnet server management or run tlntadmn), select 3 to display/change registry settings, and then select 7 NTLM to modify. The acceptable value is 0-, which is NTLM only, 0 is NTLM not available, and 1 is supported by both. The default value is 2. After modification, restart the Telnet service.

To improve security, we sometimes modify the default port number of the service on the server side, so that the port number information needs to be provided during client connection. The modification method is as follows:

Start Menu | program | administrative tool | Telnet Server Management, select 3 to display/change registry settings, then select 8 Telnetport, and enter the port number you want to set. Note that the entered port number does not conflict with the port currently in use on your server. After modification, restart the Win2000 Telnet service.