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TOPIC: blocking port

blocking port 8 years 10 months ago #23842

  • sose
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how to I the registry to change the default port for remote desktop connection to prevent intruders and also the deault port for IIS network services

thanks
sose
Network Engineer
analysethis.co/index.php/forum/index
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Re: blocking port 8 years 10 months ago #23843

  • Smurf
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RDP -


[code:1]Under the Key

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp

Find the Sub Key

PortNumber (Default Value 00000D3D, Hex for (3389))

Enter the new port number in Hex.[/code:1]

IIS (Presuming Windows 2003)

[code:1]IIS can be done within the IIS Manager
expand to the website (usually Default Website)
Right Click --> Properties
The first tab (Web Site) has the TCP Port, just change this value and restart the website.
[/code:1]

Its worth noting that although it can help deter the attack, it will do nothing about preventing it. Its not that difficult to fingerprint the services/port to see whats actually running on them.
Wayne Murphy
Firewall.cx Team Member
www.firewall.cx

Now working for a Security Company called Sec-1 Ltd in the UK, for any
Penetration Testing work visit www.sec-1.com or PM me for details.
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