3389 is Windows 2000 (2003) Server Remote Desktop service port, through this port, use the "Remote Desktop" and other connection tool to connect to a remote server, if connected, the user name and password for the system administrator, it becomes possible to operate the remote computer as image forming operation of the present machine, so that the remote server will generally change the value or to close the port.
Before closing the 3389 port, please log in to your system is more complicated password set.
First, port management 3389
3389 Remote Desktop Connection: Go Remote Desktop Connection, enter "remote computer name" click "Connect."
Step a: Right computer → properties.
Step two: the left navigation bar, click on "Remote Settings."
Step three: Check the "Allow Remote Assistance connections to this computer."
The following three options are:
(1) close the Remote Desktop feature.
(2) open the Remote Desktop feature to achieve the same operating system version or between different operating system version of Remote Desktop Control.
(3) if we did not change between different operating system version of Remote Desktop can not be controlled.
Finally, click OK to the host will have the function of a controlled.
3389 Remote Desktop Bulk Administration Tool :
Second, turn off the Windows 3389-related background services
Windows XP / 2003:
Click: Start -> Settings -> Control Panel -> Administrative Tools -> Services
in the background list of services, locate the following four
NetMeeting Remote Desktop Sharing
Remote Help the Session Manager Desktop
Terminal services
Terminal services the Session Directory
will these four Windows background service to disabled.
Win7 in:
Note: In the Control Panel, the "View" to "Large Icons" before you see the options above.
In the background the list of services, locate the following three
Remote Desktop the Configuration
Remote Desktop Services
Remote Desktop Services UserMode
the above three Windows background service to disabled.
Second, related to the 3389 port closed foreground program
Click: Start -> Settings -> Control Panel -> System
to select "System Properties" window "Remote" tab
1, the "Enable Remote Assistance and allow to send this computer invitation to "remove the check mark in front
2, will" enable remote desktop front "on this computer remove the checkmark
restart the computer, you can completely shut down the port 3389
Note: If your system login password is blank or too simple, and yet these ports 23,135,139 and closed, it is easy to remotely turn on port 3389 through these ports again, this operation will not make any sense.
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Original link: https: //blog.csdn.net/weixin_44400506/article/details/103801784