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PlatinumX 09-28-2012 10:53 AM

Connecting two servers without IP
Hey all,

We have many servers (Linux), each of them being part of a "security domain".
Currently, the architecture is done so there is no connection between 2 servers of 2 different security domains.

However, for a specific need, we need to connect two servers (directly or not) of two different security domain.
At application level, it would be to send file from one server to the other one.

Before deploying any solution, the Security Officer gave us his rules.
One is that the connection between the server SHALL NOT use IP protocol.

We expect a throughput of 10Mbps.
Less would not answer business needs.

What would you recommand?
I thought maybe using IPX/SPX between the servers and NCP filesystem.

Any idea?


jefro 09-28-2012 03:15 PM

The old novel stuff may still be a choice.

What you mean to say maybe is you are not allowed to use tcp/ip but that is only one of maybe 30 ethernet type of protocols. Many are not in use and you can't even get the hardware for some anymore. IPX is easily found on a common IPX ethernet connection so it can be scanned and captured if you are worried about that.

It might be possible to get a card with a fast uart chip either in serial or parallel port near that speed. When the chips came out it was too late for serial.

Also IRDA might go that fast.

Not sure if you ever could get banyan vine on linux. The DEC stuff might work like decnet. Might go with a CAN circuit.

Some usb devices might even work or firewire.

Most of that stuff would have to be some serial connection.

/dev/random 09-28-2012 03:27 PM

IPX in this case could work out well. The only thing that might cause issues is contacting other groups of servers...

PlatinumX 10-02-2012 10:12 AM

Jefro talked of using USB wire between servers. Is it possible to allow file transfert at roughly 10 mbps with a USB wire?
Which protocol would be used in that case?
Is there any available GUI?

/dev/random 10-02-2012 10:25 AM

You can try IPX over Serial, (Cisco routers can do this at 10Mbps)
Just make sure it's not a straight through cable, you need a serial null modem cable for this to work (DCE and DTE ends need to exist)

jefro 10-03-2012 02:34 PM

I have been looking for a solution but can't seem to find a usb cable that would act like a device or share. I remember there was a lot of old ways before tcp/ip but I doubt it would be easy to do in linux anymore.

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