Stopping with NTP servers at work / 2021-04-08

2021-04-08 Stopping with NTP servers at work
For almost 20 years I was involved with the running of NTP time servers at work. But the hardware aged and my job is no longer in systems administration and not in the department actually housing the timeservers.

So, time to stop doing it. The pool ntp server has been retracted, DNS names removed and soon I will make one final trip to shut down hardware one last time and remove it from racks. The end for ntp.cs.uu.nl and others.

I still run an NTP server at home which is available in the IPv6 NTP pool. That server also compared itself to one of the servers at work so it has been reconfigured. I added a few upstream servers and made sure all of them are reachable via IPv6.

The log of NTP service at cs.uu.nl was kept, here is the final version:
DateEvent
8 Apr 2021DNS names for ntp service at cs.uu.nl removed
2 Apr 2021Announcement posted to system administration mailing list that ntp service at cs.uu.nl will stop
24 Sep 2014A second stratum-1 ntp appliance is brought on-line, galileo.cs.uu.nl
28 Nov 2011Fixed the networking for stardate, the full time lab is up and running.
23 Nov 2011The antenna cable connectors are soldered on which results in a working setup after a few tries. Stardate is better at reporting the state of the power to the GPS antenna, but has no working network. Huygens has working network and serves time to metronoom.
22 Nov 2011The server ntp.cs.uu.nl is active at its new IP. Our own GPS reference doesn't work yet: we still need to solder the right connectors on the antenna cable. The server is added to the ntp pool and traffic starts to flow a few hours later.
15 Nov 2011The ntp servers are moved to their new location
14 Nov 2011The ntp servers are switched off
13 Nov 2011We retract ntp.cs.uu.nl at its current address from the pool because the serverroom will move physically, the ntp equipment will move to a different location and the IP will change to deal with the traffic better
18 Sep 2011Stats for doei.cs.uu.nl, five years after withdrawing it from the ntp pool
19 Sep 2010Stats for doei.cs.uu.nl, four years after withdrawing it from the ntp pool
4 Mar 2010The turkish adsl provider ttnet falls off the Internet for a few hours, traffic falls from 2000 packets/second to 100 packets/second in that time
22 Jan 2010We volunteer ntp.cs.uu.nl for the turkish part of the ntp pool. Traffic explodes, peaks over 5000 packets/second
18 Sep 2009Stats for doei.cs.uu.nl, three years after withdrawing it from the ntp pool
28 Jul 2009ntp.cs.uu.nl back at full speed in the ntp pool, firewall configuration fixed
15 Jul 2009rear doors of racks closed again
2 Jul 2009 10:00serverroom airco has problems with high temperatures (28-30 C), we open rear doors of racks which makes the temperature go down a bit in the racks but the airco still has hard work
Mar 2009ntp.cs.uu.nl tuned down in the ntp pool to avoid firewall issue
18 Sep 2008Stats for doei.cs.uu.nl, two years after withdrawing it from the ntp pool
17 Jan 2008huygens.cs.uu.nl has a GPS reception failure, fixed with a software update
18 Sep 2007Stats for doei.cs.uu.nl, a year after withdrawing it from the ntp pool
11 Mar 2007airco failure serverroom
5 Mar 2007all ntp servers moved to one rack close together for temperature stability
20 Jan 2007airco failure serverroom
9 Jan 2007huygens.cs.uu.nl added as stratum-1
23 Dec 2006airco failure serverroom
29 Nov 2006powerfailure in our building
1 Nov 2006metronoom.dmz.cs.uu.nl takes over as ntp.cs.uu.nl and joins pool.ntp.org
~ 24 Oct 2006antenna cable to stardate.cs.uu.nl reconnected
~ 6 Oct 2006ntpd on stardate disabled: free running clock starts to differ too much from correct time
~ 25 Aug 2006antenna cable from stardate.cs.uu.nl disconnected because of building and recabling activities
1 Aug 2006doei.cs.uu.nl leaves pool.ntp.org
19 Aug 2003doei.cs.uu.nl joins pool.ntp.org
10 Jan 1999stardate.cs.uu.nl set up as stratum-1 with GPS time reference

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