SSH Local Port Forwarding
Corinna Vinschen
corinna-cygwin@cygwin.com
Fri Jan 27 09:04:00 GMT 2006
On Jan 26 16:53, Jon Dixon wrote:
> I have Cygwin version 1.5.18-1 installed on a Windows 2003 Server
> System. My question is in regard to the SSH Local Port Forwarding
> feature. I activate the ssh local port forwarding with the command
> line statement:
>
> ssh ?L2001:server.com:23 server.com.
>
> At this point, an application can connect to Cygwin listening on port
> 2001. However if another program is executed and also listens on
> port 2001, it too will run. Is there an option available where by SSH
> can open up the Local Port Forwarding listening port in exclusive mode
> (i.e. SO_EXCLUSIVEADDRUSE) so no other programs can simultaneously
> listen on the same port?
Unfortunately not. WinSock behaves somewhat different than one would
expect in terms of port reuse. I will look into this issue at some
later point, as time permits, and see if SO_EXCLUSIVEADDRUSE could help
here.
Corinna
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Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader cygwin AT cygwin DOT com
Red Hat
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