Re: Callbacks to remoced clients thru firewall
From: Sunny (sunnyask_at_icebergwireless.com)
Date: 03/05/04
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Date: Fri, 5 Mar 2004 12:41:54 -0600
Yes,
Elp and Allen are right. Genuine Channels are good, I use them.
I just tried to show you some free solution.
Genuinne Channels are not expensive at all also.
Sunny
In article <OdvMBstAEHA.3248@TK2MSFTNGP11.phx.gbl>,
rockfamily@REMOVEME.hotmail.com says...
> Hi Isaak,
>
> "Isaak" <anonymous@discussions.microsoft.com> wrote in message
> news:B55ACDB6-356E-4649-BA5B-D1E1D24DDBDE@microsoft.com...
> > In my application, remoted clients, using auto port selection option of
> port=0, register for remote callbacks from the server.
> > Since port number is picked by the system, I have no control of which port
> number is selected. My problem is that our server will soon be placed
> behind the firewall, and with that >only certain preassigned port numbers
> will be available for both inbound and outbound communications. Because I
> may want to run multiple copies of remoted client from the same >machine at
> the same time, I can't hardcode the port number into the client. Is there a
> way to specify a range of "valid" port numbers for a client to choose form?
> And if not, is there >another approach that will allow to have multiple
> remoted clients running on the same node to receive callbacks from a server
> when a pool of available port numbers is restricted?
>
> An alternative as Sunny's approach would be to use a bi-directionnal channel
> such as the one provided by Genuine Channels: http://www.genuinechannels.com
>
> With this kind of channels, the channel that your client application uses to
> connect to the server is re-used by the server whenever he needs to call a
> callback function on the client (or send an event to the clients which is
> actually the same thing). In this way, all you will have to do is to
> configure your firewall to allow connections from wherever to your server
> machine on the port used by the server to expose your remoting objects.
> Exactly as if there was no callbacks or events involved...
>
>
>
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