The I2T research group offers to the Internet community a public NTP Stratum 1 server that is reachable through IPv4 and IPv6. This service has been announced in support.ntp.org website for public usage and forms part of the pool.ntp.org project.
The server is a Pentium III PC with a GPS Motorola M12 Oncore as refclock. The software that it runs comes from free software projects: FreeBSD (OS), ntpd (NTP server), Gnuplot (server statistics), ...
In the next graphic you can see the clock signal offset as well as its frequency stability during the current day:
In the next graphic you can see some basic system usage statistics:
| 2009-12-09 | Server is up again. Christian. |
| 2009-12-08 | Server is down. After updating FreeBSD to the latest release, 8.0p1, ntpd crashes when it tries to boot and use an Oncore reference clock. The bug seems to be has been repored several weeks ago (http://groups.google.com/group/mailing.freebsd.current/browse_thread/thread/ed5a85934d33e305). Christian. |
| 2009-04-25 | Software updated and minor configuration changes. Christian. | 2008-07-18 | Updated the software and made configuration changes in order to improve server's performance. Christian. |
The service is primarily intended to be used by Stratum 2 time servers; client systems should avoid using this service whenever possible.
Users of this service are not required to send us a notification email.
The OpenAccess Policy guidelines from the NTP Public Services Project public time server lists should be followed:
I2T is the name of a research group of the Faculty of Engineering of Bilbao that belongs to the University of the Basque Country (Basque Country, Spain). Its investigation labour is focused on telematics, specially telematic security.