[AusNOG] EVERYONE should have a Stratum 1 time server, right?

[Oliver Herrmann]

Having the device external to the building with a direct trusted connection to your network sounds awfully secure :P
Even if someone wanted to interfere or mock the GPS antenna signal the worst thing that’s gonna happen is NTP/PTP sync problems and your domain controller going “nope, no kerberos here”.
Having multiple redundant clock leaders with their own GPS antennas on different sides of the building stops that sort of attack pretty well.

On 14 Nov 2022, at 5:01 pm, Giles Pollock <glp71s at gmail.com<mailto:glp71s at gmail.com>> wrote:

Why run an antenna to the roof, when you can put the entire unit on the roof in a weatherproof enclosure? Then you only need to run Cat5e or better back down, which probably is already in place in most cases...

Saves time and worry dealing with weak GPS signals and suitable antennas/coax feeds... If you can't move the signal to the device, move the device to the signal!

On Mon, Nov 14, 2022 at 4:59 PM Mark Delany <g2x at juliet.emu.st<mailto:g2x at juliet.emu.st>> wrote:
On 14Nov22, Nathan Brookfield allegedly wrote:
> Absolutely true but that's why the board has a UFL/IPX so that you can throw an active antenna to somewehre that can see the sky, absolutely not going to work in a data centre but for home or an Office lab, absolutely acheivable.

Agreed. But lets be frank here. The antenna and cabling costs are likely to be orders of
magnitude more than the shield/hat cost.

I have absolutely no problem with that and have paid the price for other radio
technologies (such as adsb) and I may well pay the price to deploy Rob's excellent
shield. But I think ausnog members benefit from understanding the full BOM.


Mark.
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