|Source Repository:||Repository:Gentoo Portage Tree|
Summary: Chrony is a pair of programs (chronyd and chronyc) which are used to maintain the accuracy of the system clock on a computer. chronyd has been specifically written to work well for systems which have only an intermittent (e.g. dial-up) connection to the network where the NTP servers are. It still works well in a "permanently connected" mode.
- Support for command and monitoring
- Support for the Network Time Protocol (NTP)
- Support for the PTP (Precision Time Protocol) Hardware Clock (PHC) interface
- Support for the Linux Pulse Per Second (PPS) interface
- Support for reference clocks
- Support for the Linux Real Time Clock interface
- Support for asynchronous DNS
IP Space Migration ContinuesAll 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.
Funtoo Hosting IP MoveFuntoo 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.
New ARM StagesNew 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.
Accurate System Time (NTP)
It's important that your Funtoo Linux system has an accurate clock. NTP (network time protocol) can ensure your clock is accurate at all time.
The recommended NTP client/server is Package:Chrony.
# emerge chrony # rc-update add chronyd default
Use something like the following for your
server time.apple.com maxupdateskew 100 driftfile /etc/chrony/chrony.drift keyfile /etc/chrony/chrony.keys commandkey 1 dumponexit dumpdir /var/log/chrony initstepslew 10 time.apple.com logdir /var/log/chrony log measurements statistics tracking logchange 0.5 mailonchange firstname.lastname@example.org 0.5 rtcfile /etc/chrony/chrony.rtc rtconutc sched_priority 1 lock_all
Chronyd can then be started immediately by running
rc to start all new services:
Because Funtoo Linux starts network daemons without waiting for an Internet connection to become available, and because chrony will attempt to synchronize the clock over the Internet when it first starts, you must manually configure chronyd to be dependent on whatever method you use to enable your outbound network connectivity. For example, if using
dhcpcd, add the following to
You should notice a marked improvement in your system clock's accuracy. If your system time was off by a significant amount,
chronyd will gradually correct your clock while the system runs.