"David E. Lupo" wrote:
> >From: Pere Camps <[EMAIL PROTECTED]>
> >Subject: hardware clock
> >
> > We are getting quite paranoid @ work and now we'd like to get a
> >hardware clock we could install in one of our firewalls (Nokia) and then
> >syncronize all of the firewalls from it.
> >
> > Does anybody know of any card we could plug into the Nokias? If
> >they don't exist, what about a card for a Sun box?
> >
>
> In addition to the other responses so far, you might check
> http://www.coetanian.com for a stand-alone NTP server with
> external antenna.
What I don't understand is why all of these devices are so bloody
expensive. I could build you the same thing (basically) out of a 386
biscuit PC, a PC/104 GPS card, running linux, and NTP v4, and it would
probably cost me something like $400 in parts and have little
development time.
My suggestion is to get some old PC, put a $100 GPS on it, slap some
operating system on it (I suggest OpenBSD but you could run any x86-
based unix) and use ntp. The cable you need to power and get signals
from the GPS will probably cost you $40. It will be cheaper than any of
the turnkey solutions, and easily replaced/rebuilt/repaired by you
without doing an RMA.
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