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RE: [Xen-users] Is using w! safe to share data between domains?

To: "John A. Sullivan III" <jsullivan@xxxxxxxxxxxxxxxxxxx>, "Mark Williamson" <mark.williamson@xxxxxxxxxxxx>
Subject: RE: [Xen-users] Is using w! safe to share data between domains?
From: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
Date: Thu, 19 May 2005 18:47:15 +0100
Cc: ian.pratt@xxxxxxxxxxxx, xen-users@xxxxxxxxxxxxxxxxxxx
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Thread-topic: [Xen-users] Is using w! safe to share data between domains?
I suspect that in reality you'll get away with periodically mounting the
partition read-only, copying out the data you want, then unmounting it.
You can leave it mounted rw in the other domain the whole time.

Ian

> On Thu, 2005-05-19 at 16:21 +0100, Mark Williamson wrote:
> > On Thursday 19 May 2005 10:37, John A. Sullivan III wrote:
> > > I have a slightly unusual situation where I need to pass 
> data from 
> > > one domain to another but, for security reasons, one of 
> the domains 
> > > will not be on the network.  I would like to pass the data via a 
> > > shared disk partition.  I would like to know if what I 
> have done is safe.
> > 
> > Have you considered giving the networkless domain a vif but 
> > firewalling it off from everything you don't trust?  Having network 
> > available would make this kind of sharing much easier, 
> since you could 
> > use NFS (purely networked), GFS or OCFS2 (both disk-based 
> but require a network component to work).
> > 
> <snip>
> Yes, that was the second choice.  We are trying to protect 
> our Certificate Authorities as much as possible.  Thanks to 
> everyone for their help - John
> --
> John A. Sullivan III
> Open Source Development Corporation
> +1 207-985-7880
> jsullivan@xxxxxxxxxxxxxxxxxxx
> 
> If you would like to participate in the development of an 
> open source enterprise class network security management 
> system, please visit http://iscs.sourceforge.net
> 
> 
> _______________________________________________
> Xen-users mailing list
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> http://lists.xensource.com/xen-users
> 

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