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This article shows you the 3389 devices in big data and the reasons and solutions for not being able to log in in 3389. The content is concise and easy to understand, and it will definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

3389, which is the default port of the server, usually when we manage the server, professional operation and maintenance personnel will use the remote desktop manager.

So how to carry out batch management?

First, use tools for unified management

Download IIS7 remote Desktop.

IIS7 remote Desktop dominates the batch management of the server / VPS, and there is no limit to the number of advanced versions. This is not comparable to the current products on the market, the same type of remote desktop products can not achieve so many batch logins. The optimized interface is more concise, and people like rookies are easy to understand and easy to use.

It is available for free, including login-free and login status. There is no obvious functional difference between the free version and the premium version, the customer experience is good, but the premium version is suitable for more servers, you can add unlimited servers, while the free version supports up to 8 servers.

Price advantage, support monthly payment. Most other platforms only support annual payment, iis7 is more user-friendly! Easy to use without binding!

Screenshot of the program:

Second, the reason and solution of being unable to log in after opening 3389

Usually through the command netstat-ano to see port 3389 indicates that the remote management has been opened, of course, the port has not been modified. But often we still encounter the situation of being unable to connect. This article gives some explanations on the situations that may be encountered, including problems and solutions, and should be flexible according to the actual situation.

1. Case 1: the server is in the intranet

Idea: bounce back to your machine through the port, using Lcx bounce is the most common method, and if you have the same network of broilers, then it is also possible.

two。 Case 2: IP security policy has been made

Idea: stop the IP security policy service, command:

Net stop policyagent

3. Case 3: interception of the system firewall

Train of thought: consistent with the idea of situation one.

4. Case 4: system users can only log in if certain users are set up

5. Case 5: the system has done TCP/IP screening.

Idea: determine whether TCP/IP filtering is used by exporting key values from the registry

Regedit-e c:\ 1.reg HKEY_LOCAL_MACHINE\ SYSTEM\ ControlSet001\ Services\ Tcpipregedit-e c:\ 2.reg HKEY_LOCAL_MACHINE\ SYSTEM\ ControlSet002\ Services\ Tcpipregedit-e c:\ 3.reg HKEY_LOCAL_MACHINE\ SYSTEM\ CurrentControlSet\ Services\ Tcpip

Download these three file editors to find the field of EnableSecurityFilters to see if its value is 00000000. If it is 00000001, it means that the administrator has done tcp/ip filtering. We just need to change 1 to 0. The other two files can be modified as well as the first one.

The above contents are the 3389 devices in big data and the reasons and solutions for not being able to log in with 3389. Have you learned the knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

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