Drop me links to the AG 2.0 specs after the presentation please

Terry Disz disz at mcs.anl.gov
Wed Oct 2 21:58:11 CDT 2002


MessageJay,

The open mash tools bring up the video windows all muted so you can traverse
venues without getting swamped. They start out grey which may be what you
were seeing.

I have been using them on my W2k laptop with no trouble at all. I even stuck
on an old Intel USB camera and it worked right away.

Terry
  -----Original Message-----
  From: owner-ag-dev at mcs.anl.gov [mailto:owner-ag-dev at mcs.anl.gov]On Behalf
Of Ivan R. Judson
  Sent: Wednesday, October 02, 2002 9:21 PM
  To: 'Jay Beavers'
  Cc: 'Todd Needham'; 'Michael E. Papka'; 'Ag-Dev at Mcs. Anl. Gov'
  Subject: RE: Drop me links to the AG 2.0 specs after the presentation
please



  Hey Jay,

  Thanks for the feedback already.  I need to read over the WS-Security
spec, I know it's been in flux lately, but I need to get more familiar with
it. Maybe while I'm home after the baby comes tomorrow (shyeah).

  We do have this general problem of thinking of ACE/ACL's and enforcement
infrastructure, which i think is rich for work.  We do have to leverage
Globus for our security, but I know Globus has done some work on SASL
integration.  Has Passport done anything to be a SASL option?  If so, we
could consider targeting SASL abstracting the actual security implementation
out of the infrastructure (which might benefit everyone).  I'll read up on
SASL to see if this makes more or less sense.

  We haven't specified SQL schemas yet since that assumes a SQL database as
a web service backend.  I'd be happy if we get interfaces concretely defined
in WSDL, leveraging data types defined by XML Schemas.  Those map directly
to SQL data structures with .Net but also leave us the option of other
implementations.

  Can you remind me of where the WSDL descriptions of the components you
developed are?

  Thanks,

  --Ivan
    -----Original Message-----
    From: Jay Beavers [mailto:jbeavers at microsoft.com]
    Sent: Tuesday, October 01, 2002 1:40 PM
    To: judson at mcs.anl.gov
    Cc: Todd Needham; Michael E. Papka
    Subject: RE: Drop me links to the AG 2.0 specs after the presentation
please


    Some thoughts for you:



    Authentication / Authorization



    Have you looked at the WS-Security specification?  It provides for
attaching X.509 certificates to SOAP messages and signing the messages.  In
reviewing the Globus Toolkit 2.0's security model, it seemed that
WS-Security would be a great way of using Globus certificates with web
service calls.  The "Web Services Development Kit" has a preview
implementation of WS-Security for .NET  You can download the WSDK Preview.
See Using WS_Security with the WSDK for an example with source code of how
to use the WSDK to sign and authenticate a web service call using X.509 v3
certificates.



    Unfortunately, the WSDK still doesn't have ACL/ACE functionality for
authorizing users' access to objects.  I'm prototyping a couple of classes
that basically mirror the ACL/ACE/group design from VMS/NT for an unrelated
project if you're interested in collaborating in this area.  The idea is to
have a generic "authorization" object that you can "attach" to an object,
set the ACL, serialize the ACL for easy storage, and perform authorization
checks.



    SQL Schemas



    I didn't see any details on web service interfaces of SQL schema in the
discussions.  I'd like to talk at this level so that we can get
interoperability going.  I've done a first pass at SQL schema
synchronization with Shawn Davis and I think I should be AG Venue Server
functionality compatible with my next venue server release.  I'd love to be
in a position where we (MSR) release a subset of functionality and both ANL
and NCSA are able to add on functionality to the same server by adding
additional functionality on top of the same data store.



    Web Service Interfaces



    I'd like to synchronize on web service interfaces too.  I've provided
you guys with our WSDL and source for the web service calls used by CXP.  I'
d like to get feedback and to synchronize these as well, probably following
the same pattern as above where we provide a subset of functionality but
that subset is 100% compatible.





    I look forward to talking more after the retreat.



     - jcb



    -----Original Message-----
    From: Ivan R. Judson [mailto:judson at mcs.anl.gov]
    Sent: Monday, September 30, 2002 7:57 PM
    To: Jay Beavers
    Cc: Todd Needham; 'Michael E. Papka'
    Subject: RE: Drop me links to the AG 2.0 specs after the presentation
please





    Hey Dude,



    Don't worry about it; sometimes that happens.



    http://www.mcs.anl.gov/fl/events/agtech/



    These aren't as detailed as I'd like, but they are a start. We'll see if
things work tomorrow :-)



    --Ivan



      -----Original Message-----
      From: Jay Beavers [mailto:jbeavers at microsoft.com]
      Sent: Monday, September 30, 2002 10:16 AM
      To: Judson at MCS.anl.gov
      Cc: Todd Needham
      Subject: Drop me links to the AG 2.0 specs after the presentation
please

      Sorry I couldn't join you this morn Ivan.  Seems technical
difficulties were to be the order of the day.



      I was unable to use OpenMash instead of ddvic to enable sending of my
video.  If I switched from ddvic to OpenMash, all video windows came in as
blank grey.



      I was unable to send audio from rat.  It would see the signal locally,
but my send indicators stayed grey instead of green.



      I was unable to connect to the DPPT server.  Don't ask me why, I don't
know.





      So if you could, please drop me the PPT links later.  I'll take a look
at them and send feedback via email.



      - jcb

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