Given a Uri value how can one check whether it refers the local machine?

How can o开发者_Python百科ne check that an absolute Uri refers the local machine?

Currently I am using this simple procedure:

var isLocalMachine = uri.IsLoopback || string.Equals(uri.HostName, Environment.MachineName, StringComparison.OrdinalIgnoreCase);

But this is not good enough, because:

• the optional domain name is left unattended.
• the same machine may have several different DNS names
• the host name may be an IP address, which is not handled at all

If it is possible, I would like to have a procedure, which does not generate any network queries.

Thanks.

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Have a look at this stackoverflow-qestion, especially Eric Rosenberger's answer: Method to determine if path string is local or remote machine