3389 port is Windows 2000 (2003) Server Remote Desktop service port, through the port, use the \, will become the same can be operating the unit operating as a remote computer, so the remote server are generally those who will modify the value of this port were closed.
modify the value,
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the first place:
[HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ TerminalServer \ Wds \ rdpwd \ Tds \ tcp]
PortNumber value, the default is 3389,
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Second place:
[HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ Terminal Server \ WinStations \ RDP-Tcp]
PortNumber value, the default is 3389, modified to the desired port, such as the 6000
now on it. Reboot the system on it.
modify the value if you feel insecure, this port can be masked:
First,
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belstaff panther jacket, specifically in the tcp / ip properties set inside there is a \, in the tpc / ip filter which only allows you to open ports;
Second, it could install a firewall to prevent other people can access your purpose port 3389