[gpfsug-discuss] GPFS (partly) inside dmz

[Frederik Ferner]

On 02/11/15 13:53, Martin Gasthuber wrote:
> we are currently in discussion with our local network security people
> about the plan to make certain data accessible to outside scientists
> via ftp - this implies that the host running the ftp daemon runs with
> their ethernet ports inside a dmz. On the other hand, all NSD access
> is through IB (and should stay that way). The biggest concerns are
> around the possible intrude from that ftp host (running as GPFS
> client) through the IB infrastructure to other cluster nodes and
> possible causing big troubles on the scientific data. Did anybody
> here has similar constrains and possible solutions to mitigate that
> risk ?

Martin,

we have a very similar situation here at Diamond with our GridFTP/Globus 
endpoint. We have a machine with full access to our high performance 
file systems in our internal network, which then exports those over NFS 
over a private point to point fibre to a machine in the DMZ. This is 
also firewalled with IPTables on the link on the internal machine to 
only allow NFS traffic. This has so far provided sufficient performance 
to our users.

Kind regards,
Frederik

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Frederik Ferner
Senior Computer Systems Administrator (storage) phone: +44 1235 77 8624
Diamond Light Source Ltd.                       mob:   +44 7917 08 5110

Duty Sys Admin can be reached on x8596


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