The first prerelease for chrony-3.0 is now available. There are several new features that can significantly improve accuracy and stability of synchronisation. Hardware timestamping on Linux combined with the interleaved mode, or a hardware NTP server, allows for sub-microsecond accuracy on local networks.
The sources can be downloaded here: http://download.tuxfamily.org/chrony/chrony-3.0-pre1.tar.gz MD5 and SHA1 sums: 936287211eb111c5155f8ec0717207f7 chrony-3.0-pre1.tar.gz 86d56448cdbe6b9d3816516d2c477d2f76841901 chrony-3.0-pre1.tar.gz Changes since version 2.4.1: Enhancements ------------ * Add support for software and hardware timestamping on Linux * Add support for client/server and symmetric interleaved modes * Add support for MS-SNTP authentication in Samba * Add support for truncated MACs in NTPv4 packets * Estimate and correct for asymmetric network jitter * Increase default minsamples and polltarget to improve stability with very low jitter * Add maxjitter directive to limit source selection by jitter * Add offset option to server/pool/peer directive * Add maxlockage option to refclock directive * Add -t option to chronyd to exit after specified time * Add partial protection against replay attacks on symmetric mode * Don't reset polling interval when switching sources to online state * Improve maximum server throughput on Linux and NetBSD * Remove dump files after start * Add tab-completion to chronyc with libedit/readline * Add ntpdata command to print details about NTP measurements * Indicate truncated addresses/hostnames in chronyc output * Print reference IDs as hexadecimal numbers to avoid confusion with IPv4 addresses -- Miroslav Lichvar
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