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#Pfsense raspberry pi reddit how to#
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#Pfsense raspberry pi reddit Bluetooth#

The GPS antenna will need to have a good view of GPS satellites.

#Pfsense raspberry pi reddit Bluetooth#

Disable Bluetooth and steal the hardware UART.A GPSDO (GPS Disciplined Oscillator) is typically used which locks a temperature-compensated oscillator to the GPS time and provides a stable, reliable reference. Proper GPS synchronization uses a PPS output (or similar) from the device, fed directly into an interrupt-generating line, for example a GPIO or parallel port. Any such-configured NTP server certainly can serve as a backup for local timekeeping when Internet connectivity is not available, but should never be advertised on the Internet as a Stratum 1 clock. Your notion of time will likely be delayed by tens of milliseconds if not hundreds of milliseconds.

#Pfsense raspberry pi reddit serial#

Please realize that connecting a consumer-grade (designed for location, not for time keeping) GPS unit over USB serial does not have the accuracy of “proper” GPS synchronization due to significant and inconsistent delays in the serial line itself, as well as in the USB system. You will find plenty of useful information in the Acknowledgments section, but I suggest you start with reading this excellent blogpost. NTPSec provides a secure method of retrieving time from public ntp servers with the help of TLS. I used the signal from the GPS in conjunction with my PfSense firewall and should the GPS fail, I have configured a fallback of which the Raspberry Pi will pull time through NTPSec. It is comparing time with public NTP servers which are secured with the use of Network Time Security (NTS). This is how I used a GPS HAT (Hardware Attached on Top) connected to a Raspberry Pi 3 to work stand-alone/and or with a secure (NTPSec) Internet server, to provide a NTP service on my network.īy accomplishing this, the Raspberry Pi 3 works as a Stratum 1 NTP server on my network. This site uses Just the Docs, a documentation theme for Jekyll.

Suricata installation and configuration.

Stratum 1 NTP Server using Raspberry Pi.

OpenSSL Certificate Authority on Ubuntu Server.

Installing Kali on a Raspberry Pi 3 Model B.

Installation and configuration of Home Assistant.

#Pfsense raspberry pi reddit how to#

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