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Configuring alternate DHCP server

By: rekha singh | 06 Mar 2010 12:39 pm

I am trying to figure out how to configure an alternate DHCP server. The production server cannot run PXE per administrative rules.

I need a provisioning server (using satellite)that can run DHCP with PXE boot that will not interfere with production.

It is easy to get a VLAN assigned that is not production. The Sat server has two nics. But how would I configure the DHCP where it would not interfere with the production DHCP?

The server must maintain a production interface to update existing redhat production servers.

Suggestions?

 

 

Comments

At the moment, I would think that the BEST solution would be a dedicated segregated LAN for provisioning (staging network) and then you'd be good to go. it MAY work ok using a VLAN to segregate (I've never tried this, so YMMV and all that). And as I said, you can tell dhcpd which NIC to listen on, so you can, in theory, have it only
listen on the VLAN for requests, so it would never answer requests on the other NIC... and you can even bolster that by coming up with some crafty IPTABLES rules that would prevent DHCP requests and replies from being passed between NICs on the system... or just fix it so that the ONLY traffic going out the NON-provisioning NIC are packets related to satellite.

Also, this is really something that would be a GREAT reason to make use of that Red Hat Enterprise support contract...

Cheers,

 

By: rekha singh | 06 Mar 2010

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