Hi Scott,

Understood.  The system you describe will work provided that the required
ports are enabled for outgoing access through the firewalls at both ends,
and that someone somewhere is running the echoWare server, which I assume
you provide yourself? 

Cheers,

Wez @ RealVNC Ltd.


> -----Original Message-----
> From: Scott C. Best [mailto:[EMAIL PROTECTED] 
> Sent: 08 November 2004 18:13
> To: James Weatherall
> Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED]
> Subject: RE: Kaboodle 0.99d and VNC
> 
> Wez:
> 
>       Heya. Yes: with no ports enabled/forwarded, two 
> Kaboodle users can VNC and file-transfer with each other.
> 
>       As for what it implies about the firewalls...that's a 
> very big "it depends". Kaboodle uses the open-source 
> echoWare.DLL to establish a long-term TCP connection with an 
> echoServer called KaboodleProxy that acts as a "relay" 
> between Kaboodle clients. So if the firewall is smart enough 
> to block an echoWare to echoServer connection, then of course 
> it won't work. But consumer-grade firewall/routers like 
> LinkSys and Netgear products aren't that
> smart: by default, they will allow out any outbound connections.
> And since the echoServer owner can run that server on any 
> port they want (443, for example), the connection will be 
> passed on most commercial-grade firewalls -- with their out 
> of the box configuration -- as well.
> 
>       With the echoWare/echoServer approach, all of the 
> traffic looks like it's "outgoing", from the perspective of 
> the firewall.
> Which is, of course, the same approach that VNC's "add 
> client" and SSH's "reverse tunnels" have been utilizing for years.
> 
> cheers,
> Scott
> 
> On Mon, 8 Nov 2004, James Weatherall wrote:
> 
> >>    Heyaz. I released version 0.99d of Kaboodle today.
> >> As some might recall...when you use Kaboodle to connect 
> two networks 
> >> together using KaboodleProxy, you can VNC and 
> file-transfer across a 
> >> firewall/router without either side having to do any 
> port-forwarding 
> >> adjustments. No really. :)
> >
> > Through two *completely* closed firewalls, i.e. with no ports 
> > enabled/forwarded?  Doesn't that imply that the firewalls really 
> > aren't doing a very good job? ;)
> >
> > Wez @ RealVNC Ltd.
_______________________________________________
VNC-List mailing list
[EMAIL PROTECTED]
To remove yourself from the list visit:
http://www.realvnc.com/mailman/listinfo/vnc-list

Reply via email to