Ntp

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Installation

root # emerge net-misc/ntp

Configuration

Client

The ntp-client command immediately synchronizes your clock, and has separate ntp sync settings from the daemon:

/etc/conf.d/ntp-client - setting ntp-client upstream servers

NTPCLIENT_OPTS="-s -b -u \
	0.pool.ntp.org 1.pool.ntp.org \
	2.pool.ntp.org 3.pool.ntp.org"

Server

The ntpd server is also an ntp-client of upstream servers. Ntpd continuously, and gradually synchronizes the local clock.

/etc/ntp.conf - setting ntpd upstream servers

# Pools for Gentoo users
server 0.pool.ntp.org
server 1.pool.ntp.org
server 2.pool.ntp.org
server 3.pool.ntp.org

Runtime

root # rc-update add ntpd
root # rc-update add ntp-client
root # rc

Hardware Clock

To write your NTP sync time to the hardware at shutdown, and read hw clock at start.

root # echo 'clock_hctosys="YES"' >> /etc/conf.d/hwclock
root # echo 'clock_systohc="YES"' >> /etc/conf.d/hwclock
root # rc-service hwclock restart
root # rc-update add hwclock boot

External Resources

http://keetweej.vanheusden.com/query_ntp.php

Package:Ntp

Ntp