# Welcome to the chrony configuration file. See chrony.conf(5) for more
# information about usuable directives.
server 192.168.1.200 minpoll 2 maxpoll 4 iburst xleave
server 192.168.1.199 minpoll 2 maxpoll 4 iburst 
server 192.168.1.110 minpoll 4 maxpoll 6 iburst
server 192.168.1.101 minpoll 2 maxpoll 4 iburst
server 192.168.1.102 minpoll 4 maxpoll 6 iburst
server 192.168.1.103 minpoll 4 maxpoll 6 iburst
server 192.168.1.104 minpoll 4 maxpoll 6 iburst
server north-america.pool.ntp.org iburst
pool 2.debian.pool.ntp.org iburst

# This directive specify the location of the file containing ID/key pairs for
# NTP authentication.
keyfile /etc/chrony/chrony.keys

# This directive specify the file into which chronyd will store the rate
# information.
driftfile /var/lib/chrony/chrony.drift

# Uncomment the following line to turn logging on.
log tracking refclocks statistics

# Log files location.
logdir /var/log/chrony

# Stop bad estimates upsetting machine clock.
maxupdateskew 100.0

# This directive enables kernel synchronisation (every 11 minutes) of the
# real-time clock. Note that it can’t be used along with the 'rtcfile' directive.
rtcsync

# Step the system clock instead of slewing it if the adjustment is larger than
# one second, but only in the first three clock updates.
makestep 1 3
rtcsync

#enable GPS input
refclock SHM 0 offset 0.5 delay 0.2 refid NMEA