How to link two servers

[mad_horax]

Hi,

I want to link two servers (nets) 192.168.1.x and 10.0.0.x which use Fedora with firewalls.

Please help me to configure the servers!


Thanks in advance!

[Zotter]

You're wanting a router.

Routers are what are used between two nets to route appropriate traffic between them.

And when you drop in a router, you get a network of networks. An Internetwork. Sound familiar?

Fortunately, you have some flex with Linux. If you don't have a router to park between the two boxes, you can add a 2nd IP to each server's interface belonging to the other's LAN.

Server 1 - eth0 192.168.1.x eth0:0 10.0.0.x
Server 2 - eth0 10.0.0.x eth0:0 192.168.1.x

Add in appropriate routes and voila - the two private networks are talking to each other. (hint: man route)

You could also just add static routes for each LAN to each machine - see previous hint

You could also drop a 2nd NIC into each server and do similar.

Now, getting the services on each server to listen on multiple IPs - doable, but depends on the service as to how.

Likely a better idea would be to re address one or the other to match a common LAN range. Make that a DMZ, stick it behind your edge device and you're in production.


So - what exactly - are you doing?

[mad_horax]

You're cool, Zotter.

I had in my mind to do something as you suggested, but half part. I meant to double only the IP from my 192.168.0.x server to 10.0.0.y on eth1. Your idea is the appropriate one for my task. (set also the GW, BBDN, NW for server1:eth1 - it has 2 netboards)

My problem starts due to do an automatically SCP between servers with id_rsa authorization.

It is really necessary to double the IPs each other IP class for both servers?

Thanks a lot!