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memhamwan / memhamwan.github.io

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Setup NTP server #44

Closed turnrye closed 3 years ago

turnrye commented 3 years ago

Placeholder for ntp.leb.memhamwan.net which is an rpi with a passive Poe power splitter and an adafruit ultimate gps hat.

Generally followed https://www.satsignal.eu/ntp/Raspberry-Pi-NTP.html

turnrye commented 3 years ago

NTP setup This installation was using a Sparkfun Ultimate GPS hat on a Raspberry Pi 2

Install raspberry pi using the latest version; this run used the version from 2020-10-26 installed via the Rapberry Pi flashing utility Disable the serial-terminal but leave serial enabled using the raspi-config command Apt-get update and upgrade

sudo apt-get install gpsd gpsd-clients python-gps sudo systemctl stop gpsd.socket sudo systemctl disable gpsd-socket

gpsmon

sudo gpsd /dev/ttyAMA0 /dev/pps0 -n -F /var/run/gpsd.sock

sudo apt-get install libcap-dev libssl-dev pps-tools

sudo ppstest /dev/pps0 sudo dpkg-reconfigure tzdata

wget https://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-4.2/ntp-4.2.8p15.tar.gz tar -zxvf ntp-4.2.8p15.tar.gz ntp-4.2.8p15/ cd ntp-4.2.8p15/ ./configure --enable-linuxcaps make -j5 sudo make install sudo /etc/init.d/ntp stop sudo cp /usr/local/bin/ntp /usr/bin sudo cp /usr/local/sbin/ntp /usr/sbin sudo /etc/init.d/ntp start

ntpq -c peer -c as -c rl

/etc/ntp.conf

server 127.127.28.0 prefer #minpoll 4 maxpoll 4
fudge 127.127.28.0 time1 +0.500 refid flag1 GPS stratum 2

server 127.127.28.2 minpoll 3 maxpoll 3 true
fudge 127.127.28.2 refid SHM2 stratum 1

server 127.127.22.0 minpoll 4 maxpoll 4 true
fudge 127.127.22.0 refid PPS

fudge 127.127.22.0 flag3 1

turnrye commented 3 years ago

Setup gpsd to autostart on restart, and verified this.

Username for this is hamwan.

turnrye commented 3 years ago

Reconfigured all of the routers to use the new NTP server

turnrye commented 3 years ago

This is done.