[Ace-users] Re: [tao-users] Bidir GIOP and SSL

Douglas C. Schmidt schmidt at dre.vanderbilt.edu
Thu Jun 28 04:29:02 CDT 2007

Hi Joerg,

> I've got a question about the coexistence of the Bidirectional GIOP and the SSL protocol on TAO 1.4.10.

TAO 1.4.10 is very old!!  Please upgrade to ACE+TAO+CIAO x.5.8 (i.e.,
ACE 5.5.8, TAO 1.5.8, and CIAO 0.5.8), which you can download from


under the heading: "Latest Beta Kit".

The DOC groups at Washington University, UC Irvine, and Vanderbilt
University only provide "best effort" support for non-sponsors for the
latest release, as described in


Thus, if you need more "predictable" help for earlier versions of
ACE+TAO, I recommend that you check out


for a list of companies that will provide you with ACE+TAO commercial



> This answer is very crucial for our system design.
> I hope you can help me with that.
> Scenario:
> ########
> Let's assume, we have a management system A and a target system B (running TAO 1.4.10 with SSLIOP)
> Both systems use bidir. GIOP and SSL.
> Certificates are ONLY stored on target system B, system A does NOT store any certificates.
> Management system A starts a Corba server (callback server) and target system B starts another Corba server (request
> server).
> Now the management system A starts a client and initiates an SSL connection.
> After the successful handshake (with server authentication) it sends a request to the target system B (request server).
> In this message it sends the IOR of its own callback server.
> After that the target system B sends a message to the callback server.
> Questions:
> #########
> Does the TAO on  target system B REUSE the TCP/SSL connection, that is already build between A and B?
> In other words: Is it possible to have only ONE SINGLE TCP/SSL connection between A and B?
> Or do we need two separate connections, one for each direction?
> And - is it possible to survive with certificates stored ONLY one the target system B?
> Or does the management system A also need certificates?
> Thank you for answering and
> Best Regards,
>                       Jörg Rockel
>                                           _______________________________________                                          
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