Access Denied: Preventing Users in Trusted Domains from Accessing Servers Through Telnet

I administer the network for my company's software-development shop. We run Telnet on most of our servers so that our developers can access them remotely. Our domain trusts several other domains, though, and I'd like to make sure no one in those trusted domains can telnet in to our servers. What's the easiest way to do this?

Set the AllowTrustedDomain DWORD value, under the HKEY_ LOCAL_MACHINE\SOFTWARE\Micr osoft\TelnetServer\1.0 registry subkey, to 0. When this value doesn't exist or is set to 1, Windows 2000 defaults to letting users from trusted domains use Telnet to log on. If you'd like to configure this setting automatically on all computers in the domain, see the next question (InstantDoc ID 26447).

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