NTPsec project - a secure, hardened, and improved implementation of Network Time Protocol derived from NTP Classic, Dave Mills’s original. Drop root privileges early Enable debugging with gdb Install contrib heat generating scripts Use libbsd instead of internal funcs Set local clock deps Make visualizations of offsets, jiffies, etc. Oncore driver Trimble driver Trutime driver (deprecated) Enable gpsd daemon support JJY driver Enable support for generic time radios and GPSDOs Spectracom driver Obtain refclock info from shared memory-segment PPS cesium clock driver Hewlett Packard GPS driver Zyfer driver Arbiter 1088A/B GPS driver NMEA GPS driver NIST/USNO/PTB Modem Time Services Support for undisciplined local clock (not recommended) Oncore driver Trimble driver Trutime driver (deprecated) Enable gpsd daemon support JJY driver Enable support for generic time radios and GPSDOs Spectracom driver Obtain refclock info from shared memory-segment PPS cesium clock driver Hewlett Packard GPS driver Zyfer driver Arbiter 1088A/B GPS driver NMEA GPS driver NIST/USNO/PTB Modem Time Services Support for undisciplined local clock (not recommended) Specify the interval over which a leap second is applied (experimental)