[ntp:questions] NTP server with no network, no GPS signal
nomail at example.com
Fri Apr 29 13:01:58 UTC 2011
Yan Seiner <yan at seiner.com> wrote:
> Cristian Seres wrote:
>> I am looking for a solution to install an NTP server in a very
>> restricted network which can not be connected to other networks even
>> through a firewall because of strict security policy. RS232 and usb
>> are ok. Using GPS or DCF77 reference clocks would require a long
>> antenna wire to get signal. Installing the antenna cable would be
>> expensive, but there is good LAN cabling between a space with good GPS
>> signal and the room with high security.
>> What kind of cheap solutions would you think of? For instance, is it
>> possible to feed time signal from one NTP server to another via
>> RS232/usb? Or is there an affordable usb/rs232 reference clock which
>> has an IP based separate antenna unit?
>> With best regards,
> Get a wifi access point that's supported by OpenWRT and has a USB port.
> Install OpenWRT. Install gpsd and ntpd. Get a gps USB puck. Set up
> access point in room with good gps reception. Use the AP as the ntpd
> server. It works quite well and is quite reliable and cheap.
The "we want maximum security but it must not cost a dime" people he
is working for will be delighted by the idea to add a WiFi access :-)
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