Newsgroups: comp.parallel.pvm
From: "Paul G. Lever" <paul.lever@mcc.ac.uk>
Subject: Connecting multiple users
Organization: Computer Graphics Unit, Manchester Computing
Date: 7 Sep 1995 16:10:32 GMT
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Message-ID: <42n5ho$ssk@yama.mcc.ac.uk>

I am currently developing a telecollaboration application, with which
I intend to use PVM for parallelising tasks, and also for communication between
multiple users.
	What is required is that a user can contact another user, so that they
can link their applications together, and also utilise any other hosts in the
virtual machine, such as a supercomputer for parallel algorithms.
	As the users may not be known at start up of the pvm master daemon, how
can the master daemon add these remote hosts to the virtual machine, and how do
these remote sites start up a slave pvm daemon which connects to the master,
without the master having knowledge of user passwords on the remote site?
	I suspect that all users will connect to a known site which has a known
pvm daemon running there. What sort of security problems could arise from this?

	I doubt I've have given enough information, so any questions would help
me define the problem better!

Thanks,

Paul

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Paul G. Lever, Computer Graphics Unit, | email: paul.lever@mcc.ac.uk
Manchester Computing, Oxford Road,     | tel: +44 161 275 6095
Manchester, M13 9PL.                   | fax: +44 161 275 6040
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