There are two aspects to this.  First the technical ...

You can configure Linux DHCP so it only issues IP addresses
to computers for which the MAC addresses are explicitly listed.
That way, it will never respond for Windows non-LTSP clients.
You can configure EtherBoot so that it only accepts DHCP
responses from a server with the vendor specific tag set.
That way, the LTSP clients will ignore the Windows server.

From: rob <[EMAIL PROTECTED]>
> Or, is there any reason why your Linux DHCP server can't 
> serve your win clients as well and just turn off DHCP server 
> on the Win server?

We switched our DHCP and DNS to Linux from Windows because
it was both slow and unreliable; but if your administrators
are happy, there is no immediate reason to transition over.

> A Linux dhcp server will serve win clients quite nicely.

Yes, but the redundancy is the real benefit ...

Suppose you create two identical network service machines.
Each has DHCP, DNS, TFTP and NFS running, offering LTSP boot.
If either crashes suddenly, no Windows/Linux user will notice.
Half your LTSP clients will just have to reboot to recover.

The DHCP assigns IPs in distinct halves of your network;
each client will select one at random (maybe do LTSP boot).
The DNS has identical files, except one line is commented out
in each machine to indicate who is the domain master or slave;
changes made on the master will automatically propagate over.
The DHCP config, TFTP directory and NFS tree are periodically
mirrored from the primary machine to the secondary using RSYNC.

For the ultimate in laziness, you can make those few config
files on the master linux machine accessible over Samba so that
you can put an editor icon in the corner of your Windows desktop.

When we forgot to restart one of the two servers, after the UPS
had told it to shut down during the infamous CA power problems,
it was a week before anybody noticed ... and (even then) only
when the administrators were trying to log in to make a change.

Achieving the same combination of redundancy _and_ single point
of configuration _and_ trivial configuration backup / recovery,
is much harder under Windows.  Never trust your hardware.


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