[ale] Remote file systems and tunnels

[jdp at algoloma.com (JD)]

On 09/16/2013 02:41 PM, Alex Carver wrote:
> I'm working on setting up a pair of systems that will need to have the storage
> volumes on one (file server) mounted by the other (application server).  The
> first problem is they're both going to be on different subnets (no choice).
> 
> I'd like to have a secure link between the two.  I could set up NFS though that
> exposes the NFS server's ports to all machines (although I suppose I could also
> run iptables and allow only the app server through).  I was thinking it might be
> possible to tunnel NFS (or something similar and suitable) via SSH.  Then I only
> need the SSH port open on the server.
> 
> The problem is that any document I find for tunneling NFS seems to be several
> years old.
> 
> Thoughts?

Dedicated storage network ... er ... you know, a SAN. In a business of any size,
DO NOT run storage traffic over the same links as other traffic.
Lots of reasons. VLANs are not enough either.

In a home, you could make a case for sharing the physical network, but I still
wouldn't, not when cheap GigE switches are just $20.