Hello, in system-config-date i have checkbox synchronize date before service startup. Which config switch,file does it affect? I want to turn it on on my CentOS machine without xauth , just editing config files , i was hoping it could be in /etc/sysconfig/ntpd but no.
Thanks in advance!
D.
David Hláčik wrote:
Hello, in system-config-date i have checkbox synchronize date before service startup. Which config switch,file does it affect? I want to turn it on on my CentOS machine without xauth , just editing config files , i was hoping it could be in /etc/sysconfig/ntpd but no.
ok ... I do not see exactly where, but it seems that somewhere a -x switch is set and the file /etc/ntp/step-tickers gets the server name to sync from.
I do no see a -x switch anywhere though
Hello, in system-config-date i have checkbox synchronize date before service startup. Which config switch,file does it affect? I want to turn it on on my CentOS machine without xauth , just editing config files , i was hoping it could be in /etc/sysconfig/ntpd but no.
ok ... I do not see exactly where, but it seems that somewhere a -x switch is set and the file /etc/ntp/step-tickers gets the server name to sync from.
I do no see a -x switch anywhere though
the -x switch is part of the init script. it isn't actually handled by ntpd. the init script will use step-tickers if it has entries, or pull the server lines from ntp.conf, and then invoke ntpdate with the list it figures out.
David Hláčik wrote:
Hello, in system-config-date i have checkbox synchronize date before service startup. Which config switch,file does it affect? I want to turn it on on my CentOS machine without xauth , just editing config files , i was hoping it could be in /etc/sysconfig/ntpd but no.
most likely, the system-config util is setting that option in /etc/sysconfig/ntpd which by default reads...
# Drop root to id 'ntp:ntp' by default. OPTIONS="-u ntp:ntp -p /var/run/ntpd.pid"
# Set to 'yes' to sync hw clock after successful ntpdate SYNC_HWCLOCK=no
# Additional options for ntpdate NTPDATE_OPTIONS=""
if -x is /not/ set in OPTIONS, it calls /usr/sbin/ntpdate with various parameters, this hard sets the system time to the NTP server time. if -x /is/ set, it does the time step thing
if SYNC_HWCLOCK=yes, then it invokes sync_hwclock in the /etc/init.d/ntpd script, which in turn runs /sbin/hwclock with various options as specified.
I am sorry, but when i will config ntp trought system-config-date and check sync time before service startup, it is working, but i do not see any -x switch in /etc/sysconfig/ntp . :(
Thanks
On Fri, May 16, 2008 at 12:55 AM, John R Pierce pierce@hogranch.com wrote:
David Hláčik wrote:
Hello, in system-config-date i have checkbox synchronize date before service startup. Which config switch,file does it affect? I want to turn it on on my CentOS machine without xauth , just editing config files , i was hoping it could be in /etc/sysconfig/ntpd but no.
most likely, the system-config util is setting that option in /etc/sysconfig/ntpd which by default reads...
# Drop root to id 'ntp:ntp' by default. OPTIONS="-u ntp:ntp -p /var/run/ntpd.pid"
# Set to 'yes' to sync hw clock after successful ntpdate SYNC_HWCLOCK=no
# Additional options for ntpdate NTPDATE_OPTIONS=""
if -x is /not/ set in OPTIONS, it calls /usr/sbin/ntpdate with various parameters, this hard sets the system time to the NTP server time. if -x /is/ set, it does the time step thing
if SYNC_HWCLOCK=yes, then it invokes sync_hwclock in the /etc/init.d/ntpd script, which in turn runs /sbin/hwclock with various options as specified.
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