mac osx - Can I specify a port in an entry in my /etc/hosts on OS X?

I
want to trick my browser into going to localhost:3000 instead of xyz.com. I went into
/etc/hosts on OS X 10.5 and added the following
entry:

127.0.0.1:3000
            xyz.com

That does not
work but without specifying the port the trick works. Is there a way to do this
specifying the port?

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class="normal">Answer

No, the hosts file is simply a way to statically resolve names when no DNS
server is present.