Re: Remotecontrol pc behind nat

Why not just use remote desktop (aka terminal services), and have it 
listen on a different port?  This web article shows you how to change the 
port setting:
http://support.microsoft.com/kb/187623

It defaults to 3389, but there is no reason you can't put it on 80, 443, 
or 21 as long as there aren't other services already listening on them.

Be smart about it though, don't get owned!  Keep the box patched and user 
accounts locked down with strong passwords, especially since you can't 
restrict the source IP's that will connect from the firewall.  Expect that 
you will get scanned, and someone will try and break their way in.


Cheers,
- Ralph

On Tue, 28 Nov 2006, Safe Packet wrote:

> Hi list ,
>
> I have a requirement where in I want to remotely control a windows machine
> from internet which is behind a firewall and has a natted ip. The firewall
> has a public ip configured on its untrusted interface and it has http, https
> and ftp ports open. The restriction here is that with out making any changes
> to the existing firewall and nat configuration this has to be achieved? Is
> this possible  ?Any suggestions will be appreciated.
>
> I know a package from ultra vnc (NAT2NAT plug-in) which can do this but
> unfortunately vnc port is also blocked in my case.
>
> Thanks in advance