diff options
| -rw-r--r-- | DISTRO_PORTING | 24 | ||||
| -rw-r--r-- | README | 5 | ||||
| -rw-r--r-- | configure.ac | 5 |
3 files changed, 12 insertions, 22 deletions
diff --git a/DISTRO_PORTING b/DISTRO_PORTING index 51a244389d..68107e46c9 100644 --- a/DISTRO_PORTING +++ b/DISTRO_PORTING @@ -25,21 +25,19 @@ HOWTO: NTP POOL: - By default, timesyncd uses the Google NTP servers - time[1-4].google.com. They serve time that is not standards - compliant, and can be up to .5s off. Google does not - officially support these servers for the broader - audience. Distributions and vendors really should not ship - OSes or devices with these NTP servers configured. Instead, - please register your own vendor pool at ntp.org and make it - the built-in default by passing --with-ntp-servers= to - configure. Registering vendor pools is free: + By default, timesyncd uses the Google Public NTP servers + time[1-4].google.com. They serve time that uses a leap second + smear, and can be up to .5s off from servers that use stepped + leap seconds. - http://www.pool.ntp.org/en/vendors.html + https://developers.google.com/time/smear + + If you prefer to use leap second steps, please register your own + vendor pool at ntp.org and make it the built-in default by + passing --with-ntp-servers= to configure. Registering vendor + pools is free: - Again, if you ship your software or device with the default - NTP servers, then you will get served wrong time, and will - rely on services that might not be supported for long. + http://www.pool.ntp.org/en/vendors.html PAM: The default PAM config shipped by systemd is really bare bones. @@ -275,11 +275,6 @@ WARNINGS: false positives will be triggered by code which violates some rules but is actually safe. - Currently, systemd-timesyncd defaults to use the Google NTP - servers if not specified otherwise at configure time. You - really should not ship an OS or device with this default - setting. See DISTRO_PORTING for details. - ENGINEERING AND CONSULTING SERVICES: Kinvolk (https://kinvolk.io) offers professional engineering and consulting services for systemd. Please contact Chris Kühl diff --git a/configure.ac b/configure.ac index ab1d17c531..ef8a8087af 100644 --- a/configure.ac +++ b/configure.ac @@ -1146,10 +1146,7 @@ AC_ARG_WITH(ntp-servers, AS_HELP_STRING([--with-ntp-servers=NTPSERVERS], [space-separated list of default NTP servers]), [NTP_SERVERS="$withval"], - [NTP_SERVERS="time1.google.com time2.google.com time3.google.com time4.google.com" - AC_MSG_WARN([*** Using Google NTP servers. - Do not ship OSes or devices with these default settings. - See DISTRO_PORTING for details!])]) + [NTP_SERVERS="time1.google.com time2.google.com time3.google.com time4.google.com"]) AC_DEFINE_UNQUOTED(NTP_SERVERS, ["$NTP_SERVERS"], [Default NTP Servers]) AC_SUBST(NTP_SERVERS) |