[occi-wg] Comments on draft OGF protocol description requested

Sam Johnston samj at samj.net
Wed Apr 22 05:38:15 CDT 2009


This is an increasingly important topic - I would like to see cloud
infrastructure workloads (especially virtual machines) sandboxed by default
and pinholes created for requisite services. For bonus points the ability to
specify application level parameters such as allowable HTTP verbs and URL
regexps would be helpful. I also think this would be a worthy extension for
OCCI at some point in the future (as this is a sensible place for such

I fear that this specific implementation could be a little on the complex
side and would prefer to see something like a simple text protocol
(e.g. ufw<http://www.ubuntugeek.com/ufw-uncomplicated-firewall-for-ubuntu-hardy.html>)
over SSL/HTTPS, though I admit I haven't fully considered the security

I would suggest this is something we can discuss together after the
implementable draft is done next month.


On Wed, Apr 22, 2009 at 10:58 AM, Ralph Niederberger <
r.niederberger at fz-juelich.de> wrote:

> Dear all,
> my name is Ralph Niederberger. I am one of the chairs of the FVGA-WG at
> OGF. We are currently investigating in designing a new protocol for
> dynamic opening of ports within firewalls by authorized user applications.
> Sorry for crossposting to all of the infrastructure-area mailing lists, but
> I would
> like to get feedback from all of you concerning a draft protocol we are
> just
> preparing within our group. And because our area-directors did not provide
> me with
> information on an infrastructure-area mailing list, where I could send it
> once, I had to
> send it to all RG/WGs
> The draft description I have appended to this email.
> It would be very helpful, if you could comment on this proposal, so that
> the
> Firewall Virtualisation for Grid Applications - Work Group can work on
> your comments at the next OGF meeting.
> We know that there are many other developments, which already have tried to
> solve this issue, but have not seen any solution, which is widely used
> and/or
> provides a similar easy to use interface and broad range of usability.
> Our intention is to get as much as possible feedback, so that we can decide
> as
> soon as possible, if the direction we are going is the right one or if we
> have missed
> anything  important.
> Dependent on your feedback, we would like to go for this solution or change
> the
> draft accordingly.
> Then we would like to start the following steps in parallel:
> a.) Getting in touch with IETF for standardization issues.
> b.) Implementation of a first very limited prototype (showing that it works
> as suggested).
> Step b could be separated into different parts:
> b1.) prototype implementation for linux iptables
> b2.) prototype in close cooperation with a Firewall developer (-> a first
> FiTP aware firewall).
>    Anyone having contact to these guys would be fine.
> b3.) Communication prototypes for out of band signalling, i.e. for
> firewalls which are FiTP
>    unaware. So the auth server has to start a subroutine for firewall
> configuration (via CLI,
>    special firewall managament software, https, ...)
>    b3 could be done for several firewall systems, e.g. Cisco Pix,
> Checkpoint, ...
>   Here we would need experts having access to those kinds of firewalls
> within test environments.
> Next steps are very dependent on the outcome of steps a.) and b.) above.
> I would like to thank you all in advance for your feedback.
> best regards
> Ralph Niederberger
> --
> ***************************************************
> Ralph Niederberger
> Juelich Supercomputing Centre
> Institute for Advanced Simulation
> Phone:  +49 2461 61-4772
> Fax:    +49 2461 61-6656
> E-Mail: r.niederberger at fz-juelich.de
> WWW:    http://www.fz-juelich.de/jsc/
> JSC is the coordinator of the
> John von Neumann Institute for Computing
> and member of the
> Gauss Centre for Supercomputing
> ***************************************************
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> Vorsitzende des Aufsichtsrats: MinDirig'in Bärbel Brumme-Bothe
> Geschäftsführung: Prof. Dr. Achim Bachem (Vorsitzender),
> Dr. Ulrich Krafft (stellv. Vorsitzender), Prof. Dr. Harald Bolt,
> Dr. Sebastian M. Schmidt
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