Thanks for this quick answer. Here is the modified file. I found the following 20 servers to be stratum 1 (with ntpdate -q and a perl regex): ntp1.arnes.si ntp2.arnes.si ntp.cesnet.cz ntps1-0.cs.tu-berlin.de ntps1-1.cs.tu-berlin.de ntps1-2.uni-erlangen.de canon.inria.fr chronos.cru.fr clock.cuhk.edu.hk time.ien.it cronos.cenam.mx ntp0.nl.net ntp1.nl.net ntp2.nl.net ntp.certum.pl vega.cbk.poznan.pl time1.stupi.se goodtime.ijs.si ntp2.ja.net laikas.pfi.lt
This is unrelated but the following servers were unreachable (ntpdate returns "no server suitable for synchronization found"): wuarchive.wustl.edu gilbreth.ecn.purdue.edu molecule.ecn.purdue.edu bernina.ethz.ch time.esec.com.au ntpa2.kph.uni-mainz.de ** Attachment added: "ntp-servers-list.c" https://bugs.launchpad.net/ubuntu/+source/gnome-system-tools/+bug/674868/+attachment/1732250/+files/ntp-servers-list.c -- [time-admin] ntp server selection should not suggest stratum 1 servers https://bugs.launchpad.net/bugs/674868 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
