[clug] Pop quiz.. (DHCP and servers).

Peter Shevchenko Peter.Shevchenko at rsise.anu.edu.au
Tue Jan 13 23:29:08 GMT 2009

"Andrew Janke" <a.janke at gmail.com> wrote:
> Should you or shouldn't you let your servers/desktops get their IP
> address via DHCP?
> As I see it the pros are:
>    * Easier to config and re-install (one less thing to do)
>    * Easier to change IP configs/DNS/ntp/etc.
> Cons:
>    * DHCP server becomes a big SPOF unless you use large lease times

It is quite easy to setup the dhcp server as a load balancing failover pair
which removes the SPOF problem.  This is how we run our DHCP server for
RSISE and yes it really does work.

see: https://wiki.edubuntu.org/EdubuntuDHCPload-balancingFailover

>    * A tad more network traffic/noise
> In my case given that I use cfengine2 to look after all my servers and
> desktops this is sort of moot but I have always been curious on the
> general consensus for this. If you do I will be interested in your
> comments as to what you set your lease time to.
> ta
> a
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Peter Shevchenko                                   Ph +61 2 6125 1548
IT Administrator - College of Engineering and Computer Science
Australian National University, Canberra ACT 0200 Australia

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