2024年6月10日发(作者：)

# hwclock --systohc# hwclock --systohc --utcuse the second option if you use UTC.

Set hwclock manually:

# hwclock --set --date="5/28/2010 16:45:05"Everytime you use the hwclock --set command, it will create or edit the file

/etc/adjtime to determine the systematic drift. Once you have some history, you can use the --adjust option to adjust the

hardware clock appropriately. Run as a cron job if you want the clock to adjust automatically on a regular schedule. Don't use

the --adjust function when using ntpd since ntpd will turn the "11 minute mode" on, which is best left alone. See the hwclock

manpage for more info.

Setup ntpd for automatic synchronization with a remote server.

Run Red Hat's setup utility to make ntpd start on boot up and edit /etc/

Set server and fudge options:

server ge stratum 10Enable multicastclient:

multicastclient # listen on default 224.0.1.1 Edit /etc/sysconfig/ntpd if necessary. The default should be fine.

Start the ntpd daemon:

# service ntpd start