Alexander, First off, CentOS7 came with cronyd. Which was very annoying because when I tried to remove it, it had 2 prereqs: anaconda initial-setup Now, I don't know why the setup program kept these 2 around. I think CentOS7 needs a bit growing up. Anyway, I disabled chrony: systemctl disable time-sync systemctl stop time-sync Then I installed ntp. However, when I started it it seems that it was not compiled with: --enable-all-clocks So, I downloaded the latest and re-compiled with: ./configure --with-crypto --enable-all-clocks --enable-step-slew I built it as per the document and everything looks good -G On 12/12/2014 04:29 AM, Alexander Dalloz wrote: > Am 11.12.2014 um 21:57 schrieb xaos: >> Hello everyone, >> >> If anyone is interested, I have created a HOWTO >> on running a Motorola GPS receiver connected to >> a CentOS 7 box via serial port (com1), >> with 1PPS over DCD. >> >> The trick here is that CentOS 7 uses systemd >> and setup was a bit different. Anyway, >> everything works. >> >> The result is a highly accurate NTP server, Stratum 1. >> >> Here is the documentation. >> >> http://www.maximaphysics.com/Centos_7_GPS_Setup.html >> >> Let me know if something does not look right. >> >> -George, N2FGX > > Hello George, > > thanks for the interesting article. > > Mind you one question: why did you replace the NTPd shipping with > CentOS 7 by a source compilation? Is the NTPd version provided by > CentOS lacking some important feature for that usecase? > > Regards > > Alexander > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos