Network Time Server

I have been tasked with suggesting a Network time server for our small to medium size enterprise. The Time Server would be used to sync time with Network devices and for the MS Active Directory Domain.
I would like to hear suggestions from people on a time server. Something not too expensive, Around $3,000.00 give or take, or under. I know there are devices for a few hundred dollars or so, those are fine too. It will be in a server room with no windows, so a cable would need to be run and that cable would be around 300 feet or so to get a signal. It would probably have to be GPS, but as long as it does not have to be replaced in a few years, we will consider other technologies.
Thank you
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Ben HartCommented:
First off you don;t need to spend a dime if you already have a Windows 2008 or 2012 server.

It's easy as cake.. then generate a GPO to assign your client pc's with the NTP settings and you are good to go.

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Jmantsch1Author Commented:
I am told that we require a full NTP server to synchronize time with; that a windows server has a different/slimmed down version of NTP. (SNTP). Is that true?
Ben HartCommented:
Not to my knowledge.  We've used Windows NTP for a decade now.  It's small, runs as a service and is builtin.  You can specify what Time sources you use for the NTP server, then all your client use your Windows box as their authoritative time source.
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Ben HartCommented:
Are you needing to sync time with some special hardware or software or are you just using a normal Domain with Windows clients?
The links above will walk you through configuration but be sure you configure the correct DC.  By default, the computers on the network obtain the time from their authenticating domain controller. The domain controllers on a network obtain their time from their domain's operations master or an explicitly configured time source. Because of this, you must ensure that the operations master in each domain is set to the correct time.

In a nutshell you only need to configure this once and on the ops master.
Jmantsch1Author Commented:
Are you syncing time for Cisco devices such as routers to the Windows NTP server?
Ben HartCommented:
OP, what kind of requirement are you working under in order to have a strict sounding NTP setup?  I'm just curious.. I've never really seen the need to specify an authoritative time source within a normal windows domain.  My current job, NTP was setup when I got here.
Ben HartCommented:
I don;t believe we have needed to change teh default time config on any of our routers.
Jmantsch1Author Commented:
Ben/h1r0; I am more concerned with the Networking devices syncing time. In our network we block NTP port 123 traffic. We want to configure one source for NTP going outside the network; then sync all network devices and AD to that source. I am familiar with w32time and how time is synced in an AD environment.
Ben HartCommented:
There was an issue years ago with using NTP in WIndows Server 2000.. but I have not found evidence of problems syncing a Cisco device to 2008/2012 NTP.
Jmantsch1Author Commented:
Thanks Ben. I'll build a server and give it a try.
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