Ntp

Revision as of 03:22, January 25, 2015 by Threesixes (Talk | contribs)

net-misc/ntp


Source Repository:Repository:Gentoo Portage Tree

http://www.ntp.org/

Summary: Network Time Protocol suite/programs

Use Flags

openntpd
Allow ntp to be installed alongside openntpd
parse-clocks
Add support for PARSE clocks
samba
Provide support for Samba's signing daemon (needed for Active Directory domain controllers)

News

Drobbins

IP Space Migration Continues

All Funtoo user containers in the 8.28 IP space will be moving into our new IP space (172.97) over the next few days. If you have DNS set up -- be sure to watch your container and update to the new IP! container.host.funtoo.org DNS will be updated after the move.
2015-08-27 by Drobbins
Drobbins

Funtoo Hosting IP Move

Funtoo user containers with IPs in the 72.18.x.x range will be gradually migrating to new IP addresses this week. If you have DNS entries for your containers, please be aware that your DNS will need to be updated.
2015-08-11 by Drobbins
Drobbins

New ARM Stages

New ARM Stages, built with a new toolchain, are now hitting mirrors. Existing ARM users should re-install using these stages (dated Aug 3, 2015 or later,) rather than upgrade using emerge.
2015-08-06 by Drobbins
More...

Ntp

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Installation

# 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

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


Hardware Clock

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

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


External Resources

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