On Mon, May 27, 2019 at 06:32:19AM +0200, Ralf Prengel (ralf.prengel at rprengel.de) wrote: > > Hallo, > > what is the standard way to sync time under Centos 7. > ntp or chrony. YMMV. I have used NTP for many, many years so I am familiar with it and also have ALL config files, I normally just delete chrony and install ntpd, then copy the config files and start ntp. All done, 2 minutes. Chrony cannot supply time info, so if you have clients requesting time info the server cannot serve time, you need ntpd for that. I have many windows stations that pull time from my CentOS servers. -- Jobst Schmalenbach A computer without Microsoft is like chocolate cake without ketchup!