Difference between revisions of "Recente Storingen"

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                   mol-secr multimedia neuropi ns3 nwi-backup onlyme owc pcb planthgl
                   plantkunde-hgl sdisk share snn sofie spmdata1 tdisk tece teceleiding
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                   mol-secr multimedia neuropi ns3 nwi-backup onlyme owc pcb planthgl
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Revision as of 13:26, 7 January 2014

{{#customtitle:Recent Service Interruptions}}


Current Service Interruptions and Maintenance

BASS Java 7 problem

  Begin        : 20131201
  End          : 201312??
  Affected     : Users of BASS with Oracle forms (Java)

The ISC let us know that after the installation of patches installed in BASS during the weekend of December 1, the possibility to use a recent version of Java (version 7) has erroneously disappeared. The ISC is looking for a solution, but is not clear yet when this will be resolved.


Scan to email sometimes doesn't work for Konica Minolta C364e

  Begin         : 2013???? ??:??
  End           : unknown    (temporary after switching off and on a KM MFP C364e)
  Affected      : Users of a KM MFP C364e as a scanner

Users report to us that the scanning to e-mail sometimes doesn't work, with an error like "Server not found. Scan deleted". The problem has been reported to KM. As far as we know, the problem occurs only seldom. It can temporarily be resolved by switching the machine off and on again.


Report a problem

Use this form to report less urgent problems. For urgent problems, call 20000 (helpdesk).


Recently Resolved Service Interruptions and Maintainance

To be quickly informed about service interruptions one can subscribe to the CPK mailinglist.

Network problems

  Begin        : 20140106 11:29
  End          : 20140106 11:40

Due to an error by an ISC network administrator, all internal and external RU network traffic was blocked for a short period.

Moving network shares to new servers

  Begin         : 20131223
  End           : 20131224
  Affected      : Users of the following network shares:
                  acfiles2 botany botany-general carta comsol digicd encapson encapson2
                  exoarchief felix gi2 gi3 hfml-45t hfml-data hfml-engineering ifl iris
                  mailmanincludes mbaudit1 mbaudit2 mbbioel mbcns mbcortex mbdata mbread
                  mbwrite mestrelab mi2 mi3 milkun4 milkun4rw molchem molchem2 molphtec
                  mol-secr multimedia neuropi ns3 nwi-backup onlyme owc pcb planthgl
                  plantkunde-hgl sdisk/software share snn sofie spmdata1 tdisk/cursus tece teceleiding
                  temp tracegastemp wallpaper xpcursus xpsoftware

In the course of these two days, above network shares will be moved to new servers. During the move action, a share will not be available. If you encounter any problems connecting to a network share using Windows, always connect using the "share-name minus srv" naming scheme: \\sharenaam-srv.science.ru.nl\sharenaam. See also Diskruimte#Naming.

Postponed replacement of home-server "bundle"

  Begin        : 20131223 07:30
  End          : 20131223 09:00 (expected)
  Affected     : Users with homedirectory server "bundle" (as can be seen on http://DIY.science.ru.nl)

The replacement of the old home server "bundle" has been postponed and will now guaranteed take place on Monday morning December 23. Because the data have been synchronized with the new server, there will not be much downtime. The new server should be very dependable: hardware RAID-6, double processors and power supplies and a 5-year support contract from the supplier. The performance has improved, e.g. by using hardware RAID with a 1 GB write cache with battery backup.


Interruption of network in Huygens wing 1

  Begin        : 20131217 19:00
  End          : 20131217 24:00
  Affected     : Users of the network in Huygens wing 1, especially the ground floor.

Tuesday night December 17 19:00-24:00 hours, maintenance work will be done affecting the data network in Huygens wing 1. The wired and wireless network will suffer service interruptions a few times during that period. The main inconvenience will be on the ground floor.

Service interruption Konica Minolta MFP's outside of Huygens building

  Begin         : 20131209 12:48
  End           : 20131209 13:40 after reset of a KM MFP
  Affected      : Users of the KM MFP's outside of the Huygens building

C&CZ changed the DHCP-configuration of the KM MFP's, because KM had told us all KM's had an identical configuration after the upgrade of the night of December 4. Soon thereafter the KM's outside of the Huygens building showed problems. After changing the DHCP-configuration back to the previous version and restarting the MFP's, the problem was resolved. The firmware upgrade of these machines still has to take place.

Konica Minolta MFP's firmware upgrade

  Begin         : 20131204 02:00
  End           : 20131204 06:00
  Affected      : Nightly users of the KM MFP's

Wednesday night, the firmware of the Konica Minolta multifunctionals will be upgraded. This should resolve existing problems, like the not waking up from sleep mode. Please report all remaining problems, for MFP-hardware and paper to KM via phone: 55955 option 4.

Power dip December 3

  Begin         : 20131203  ca 09:36
  End           : 20131203  ca 10:00
  Affected      : all RU/UMCN users

Tuesday morning around half past nine, there was a short power dip for RU/UMCN, probably due to a switch error at Liander. This power dip, that is not listed on the power interruption website, made all systems restart that were not on UPS power. Because only the network switches in Huygens wing 1 and 7 are on UPS power, a lot of users lost their connection to the network, including wireless and IP-telephony, for about 20 minutes. Apparatus that restarted faster than the network, might have needed an extra restart to restore the connection to the network.

Poster printer "kamerbreed" broken

  Begin         : 20130925 17:00
  End           : 20131120 14:00
  Affected      : Users of the poster printer "kamerbreed"

The motherboard of the printer had to be replaced. Because there is no maintenance contract for this old printer and spare parts were hard to get, repair has taken a long time.


Gipphoenix network problem

  Begin         : 20131118 06:33
  End           : 20131029 09:16
  Affected      : Users of virtual machines hosted by gipphoenix

For unknown reasons, the network interface of the server was not online. Running ifdown / ifup eth2 resolved the problem.

Web lectures unavailable for 20 minutes

  Begin         : 20131115 10:35
  End           : 20131029 17:17
  Affected      : Users of Blackboard / Web lectures

For unknown reasons one of the servers had a high load and stopped servicing users. A reboot solved the problem.

U: / home server bundle problems

  Begin         : 20131029 ca. 16:00
  End           : 20131029 17:17
  Affected      : Users of this U: / home server

For unknown reasons the server had a high load and stopped servicing users. A reboot solved the problem.

Again IMAP mail server problem

  Begin         : 20131028 13:35 
  End           : 20131028 14:08
  Affected      : all users wanting to read Science mail 

Just like 3 days ago, the IMAP server got overloaded after noon. It took a reboot to bring the service back in operation. We suspect that our making of a backup-snapshot triggers this and now have disabled the snapshot during working hours.

IMAP mail server problem

  Begin         : 20131025 13:23 
  End           : 20131025 14:18
  Affected      : all users wanting to read Science mail 

During an extra backup the IMAP server got overloaded. It took a reboot to bring the service back in operation.

print_mail_to_link('Wireless_', 'ru.nl_authentication_problem')">Wireless @ru.nl authentication problem

  Begin         : 20131023  ca 14:30
  End           : 20131023  ca 16:15
  Affected      : all wireless @ru.nl users 

Yesterday afternoon around 14:30 the ISC conducted a seemingly innocent maintenance on the LDAP-server, but immediately after that auth-requests from Radius were no longer serviced. This made it impossible for wireless users to authenticate with their u/s/e number. Users in the realm @science.ru.nl were not affected by this.

Power dip October 22, ca. 11:00

  Begin         : 20131022  ca 10:55
  End           : 20131022  ca 11:00
  Affected      : all RU/UMCN users

Tuesday morning around 11 o'clock, there was a short power dip for RU/UMCN. This power dip, that is not listed on the power interruption website, made all systems restart that were not on emergency power. Because only the network switches in Huygens wing 1 and 7 are on emergency power, a lot of users lost their connection to the network, including wireless and IP-telephony, for about 5 minutes. Apparatus that restarted faster than the network, might have needed an extra restart to restore the connection to the network. A department reported that a departmental printer did not survive the power dip.

Again mail problems after supplying password to phishers

 Begin         : 20131010 00:04
 End           : 20131010 00:33
 Affected      : Users of Science mail

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

PLEASE: do not naively click on a link in an e-mail!

Printto/printsmb/phpmyadmin server problems again

  Begin         : 20131001 15:18
  End           : 20131001 15:31
  Affected      : Users of phpmyadmin, printto and printsmb printer servers

The printserver crashed again, for yet unknown reasons. A reboot of the machine solved the problem.

U: / home server bundle problems

  Begin         : 20130930 13:46
  End           : 20130930 14:02
  Affected      : Users of this U: / home server

The server crashed. A reboot of the machine solved the problem.

Printto/printsmb/phpmyadmin server problems

  Begin         : 20130927 11:02
  End           : 20130927 11:10
  Affected      : Users of phpmyadmin, printto and printsmb printer servers

The printserver crashed. A reboot of the machine solved the problem.

Sound on Linux dual-boot PC's disabled

  Begin         : 20130923
  End           : 201?????
  Affected      : Users of sound in Linux on dual boot PC's

The availability of sound in Windows appeared to be depending on the state in which Linux had left it. Therefore the sound in Linux on dual boot PC's has been disabled, in order to have it available on Windows.

BASS RU problem

  Begin         : 20130603     00:00
  End           : 20130926     08:00
  Affected      : all FNWI users using the Port Forwarder to connect to BASS RU.

The central BASS RU environment has been updated last weekend. Part of this upgrade was a change of the web address of the second logon screen, as announced on our BASS page. This morning it became clear that access to the second logon screen via the Port Forwarder didn't work anymore. Therefore the UCI rolled back the change of the second logon screen. This means that AFTER LOGGING ON TO THE PROXY at https://admin.ru.nl/ BASS is available again via https://bassruap01.uci.ru.nl:8010/OA_HTML/AppsLocalLogin.jsp

This problem will be finally resolved when the Port Forwarder will be stopped on October 1, 2013.

Printto/printsmb server problems

  Begin         : 20130924 11:41
  End           : 20130924 12:22
  Affected      : Users of the printto and printsmb printer servers

The printserver crashed. A reboot of the machine solved the problem.

File server heap problems

  Begin         : 20130917 16:25
  End           : 20130917 17:15
  Affected      : Users of 75 shared network disks

The fileserver failed to see its disks. A reboot of the machine solved the problem.

File server chunk failed reboot

  Begin         : 20130916 06:30
  End           : 20130916 13:05
  Affected      : Users of the following disks:
                arb botgarden ccs4 excienwi exoarchief FIT gi1 gipsy isis-dhz
                itt iwwr1 leonardo mercator micord molspec olcwis ons pvs
                ratio tzacad vb vscxray WiskundeToernooi zeegras

The fileserver failed the regular Monday morning reboot. Only after a rescue boot and a removal of all snapshots rebooting the machine worked.

Mail problems after supplying password to phishers

 Begin         : 20130906 10:13
 End           : 20130906 10:20
 Affected      : Users of Science mail

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

PLEASE: do not naively click on a link in an e-mail!

Peter van Campen 6 sep 2013 11:17 (CEST)

B/W KM printer pr-hg-00-002 printed in color

 Begin         : 20130902 13:33
 End           : 20130903 15:02
 Getroffen     : students of the Faculty of Science

The b/w tuned Konica Minolta printer/MFP pr-hg-00-002 suddenly printed in color. C&CZ refunded the student's budget and stopped the printer until KM had corrected the settings.

Peter van Campen 3 sep 2013 17:49 (CEST)

And again mail problems after supplying password to phishers

 Begin         : 20130904 12:22
 End           : 20130904 12:30
 Affected      : Users of Science mail

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

PLEASE: do not naively click on a link in an e-mail!

Peter van Campen 4 sep 2013 12:38 (CEST)

And yet again mail problems after supplying password to phishers

 Begin         : 20130903 13:12
 End           : 20130903 13:30
 Affected      : Users of Science mail

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

PLEASE: do not naively click on a link in an e-mail!

Peter van Campen 3 sep 2013 13:33 (CEST)

DNS nameserver problem

  Begin         : 20130902     04:30
  End           : 20130902     08:30
  Affected      : DNS clients

The DNS server on ns1.science.ru.nl didn't start after the reboot, due to a syntax error in one of the zone files. When this had been corrected, it started without problems.

Peter van Campen 2 sep 2013 18:27 (CEST)

Wireless access to BASS problem

  Begin         : 20130812     00:00
  End           : 20130823     ca. 15:00
  Affected      : all FNWI users using the wireless network to connect to bass.ru.nl.

From August 12 the wireless network in the Science buildings is being replaced. The new IP numbers appear to not be able to connect directly to BASS. We expect that this will be changed soon.

Peter van Campen 20 aug 2013 11:56 (CEST)

Yet again mail problems after supplying password to phishers

 Begin         : 20130829 05:30
 End           : 20130829 06:30
 Affected      : Users of Science mail

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

PLEASE: do not naively click on a link in an e-mail!

Peter van Campen 29 aug 2013 06:36 (CEST)

Fileserver chunk needs reboot

 Begin         : 20130829 07:30
 End           : 20130829 08:00 (expected)
 Affected      : Users of file services:
                 arb botgarden ccs4 excienwi exoarchief FIT gi1 gipsy isis-dhz
                 itt iwwr1 leonardo mercator micord molspec olcwis ons pvs
                 ratio tzacad vb vscxray WiskundeToernooi zeegras

Wim Janssen 28 aug 2013 25:37 (CEST)


Again mail problems after supplying password to phishers

 Begin         : 20130822 22:38
 End           : 20130822 23:18
 Affected      : Users of Science mail

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

PLEASE: do not naively click on a link in an e-mail!

Peter van Campen 22 aug 2013 23:27 (CEST)

Mail problems after supplying password to phishers

 Begin         : 20130822 01:45
 End           : 20130822 06:30
 Affected      : Users of Science mail

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

PLEASE: do not naively click on a link in an e-mail!

Peter van Campen 22 aug 2013 06:34 (CEST)

Windows Roaming Profile problem

 Begin         : 20130801 00:00
 End           : 20130807 12:00
 Affected      : Windows B-Fac Users with roaming profiles

An error in distributing a Group Policy Object (GPO) caused roaming profiles to fail for the last week. The start date/time of the problem is unknown, This is an estimate.

Wim Janssen 7 aug 2013 12:23 (CEST)

Lilo3 reboot for different IP number

 Begin         : 20130715 11:00
 End           : 20130715 11:15
 Affected      : Users of lilo (lilo3)

Today lilo3 appeared to have an incorrectly chosen IP number. A reboot fixed this.

Peter van Campen 15 jul 2013 12:56 (CEST)

Mail problems after supplying password to phishers

 Begin         : 20130701 23:50
 End           : 20130702 00:35
 Affected      : Users of Science mail

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

PLEASE: do not naively click on a link in an e-mail!

Peter van Campen 2 jul 2013 00:42 (CEST)

Mail problems after supplying password to phishers

 Begin         : 20130627 17:49
 End           : 20130627 18:19
 Affected      : Users of Science mail

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

PLEASE: do not naively click on a link in an e-mail!

Wim Janssen 28 jun 2013 23:20 (CEST)

Mail problems after supplying password to phishers

 Begin         : 20130627 17:49
 End           : 20130627 18:19
 Affected      : Users of Science mail

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

PLEASE: do not naively click on a link in an e-mail!

Peter van Campen 27 jun 2013 18:23 (CEST)

Mail problems after supplying password to phishers

 Begin         : 20130624 09:00
 End           : 20130624 10:05
 Affected      : Users of Science mail

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

PLEASE: do not naively click on a link in an e-mail!

Wim Janssen 24 juni 2013 11:06 (CEST)

Mail problems after supplying password to phishers

 Begin         : 20130623 15:54
 End           : 20130623 16:30
 Affected      : Users of Science mail

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

PLEASE: do not naively click on a link in an e-mail!

DNS nameserver problem

  Begin         : 20130617     04:30
  End           : 20130617     08:45
  Affected      : DNS clients

The DNS server on ns1.science.ru.nl didn't start after the reboot, due to a syntax error in one of the zone files. When this had been coreected, it started without problems.

Peter van Campen 17 jun 2013 11:19 (CEST)

Mail problem (IMAP server)

  Begin         : 20130612     13:45
  End           : 20130612     14:27
  Affected      : all FNWI users wanting to read mail on the IMAP-server.

The IMAP server had a problem, which made a reboot necessary.

Peter van Campen 12 jun 2013 14:29 (CEST)

Maintenance Wireless@RU

  Begin         : 20130606     10:00 pm
  End           : 20130606     12:00 pm
  Affected      : all users using the wireless networks ru-wlan and eduroam.

On Thursday June 6th from 10:00 pm the wireless networks ru-wlan and eduroam will be unavailable for at least 2 hours. All existing connections will be cut off. The wireless network Science however will not be effected and will be kept available.

Marcel Kuppens 3 jun 2013 13:51 (CEST)

OpenID server problem

  Begin         : 20130524 ca. 03:30
  End           : 20130529     14:15
  Affected      : all FNWI users wanting to login on a wiki using OpenID.

During the renewal of the OpenID server a configuration error was made. When users reported problems logging in, we started searching for the origin of problem. When it was found, it could easily be corrected and the server could be restarted with the correct configuration.

Peter van Campen 29 mei 2013 16:49 (CEST)

Homeserver bundle crashed

  Begin         : 20130521 ca. 17:00
  End           : 20130521     17:27
  Affected      : all FNWI users with a homedirectory on fileserver bundle

The fileserver crashed. After a reboot everything was back to normal.

Peter van Campen 22 mei 2013 13:58 (CEST)

Fileserver stack crashed due to failed hard disk

  Begin         : 20130429 04:08
  End           : 20130501 09:15
  Affected      : Users of disk volumes/network shares on file server Stack.
  Problem       : Stack: Crash due to defective disk
  Solution      : Deactivated disk using hot spare and reboot

Wim Janssen 02 may 2013 10:00 (CET)

Homeserver bundle failed reboot

  Begin         : 20130429 06:30
  End           : 20130429 11:30
  Affected      : all FNWI users with a homedirectory on fileserver bundle

The fileserver failed to reboot during the regular Monday morning shutdown schedule. It was possible to gain access to the system console only after having removed all power from the chassis. Snapshots were removed using the rescue reboot but rebooting the machine resulted in a faulty filesystem. We were able to boot the system after all filesystems had been checked offline. These actions resulted in a unusual long downtime.

Erik Joost Visser 29 apr 2013 12:00 (CET)

Homeserver bundle failed reboot

  Begin         : 20130422 06:30
  End           : 20130422 09:50
  Affected      : all FNWI users with a homedirectory on fileserver bundle

The fileserver failed the regular Monday morning reboot. Only after a rescue boot and a manual removal of all snapshots rebooting the machine worked.

Disk server stack offline

  Begin        : 20130408 08:55
  End          : 20130408 09:30
  Affected     : Users of disk volumes/network shares on file server Stack.
  Problem      : Stack:  Crash due to failing disk
  Solution     : Deactivated disk using hot spare

Disk server pile offline

  Begin        : 20130408 06:30
  End          : 20130408 08:15
  Affected     : Users of disk volumes on file server Pile (userhomes).
  Problem      : Pile: Did not shutdown properly during weekly reboot due to a kernel panic which was 
  Solution     : Executed power-cycle of the system

Erik Joost Visser 8 apr 2013 9:30 (CET)

Mail problems after supplying password to phishers

 Begin         : 20130319 11:45
 End           : 20130319 12:14
 Affected      : Users of Science mail

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam.

PLEASE: do not naively click on a link in an e-mail!

File server miii no private network

  Begin        : 20130315 17:30
  End          : 20130318 09:00
  Affected     : Users of network disks of the server miii.
  Problem      : While performing maintenance (removing a network card) a network cable was not inserted correctly.

Wim Janssen 18 mrt 2013 11:11 (CET)

Disk server pile offline

  Begin        : 20130318 06:30
  End          : 20130318 07:36
  Affected     : Users of disk volumes on file server Pile.
  Problem      : Pile: Was waiting for interactive input after reporting a warning (^d)

Network problems due to installation of Matlab R2013a

Begin         : 20130313 13:00
End           : 20130313 13:40
Affected      : users of the network

Yesterday Matlab R2013a has been installed. Today at 13:00 hours many servers started to automatically copy this 5.4 GB to their local disc. Some parts of the network were overloaded by all these copying, which made accessing the network slow for many users. The distribution of this software will now be scheduled to happen over a longer period, primarily outside of working hours.

Peter van Campen 13 mrt 2013 18:31 (CET)

More IP-numbers for ru-wlan and Science (wireless)

Monday, March 4th 2013 at 18:00 hours, the number of IP numbers that is available in the FNWI buildings for ru-wlan and Science will be doubled. Because ru-wlan moves to a new range, users of ru-wlan will lose connectivity for at most 15 minutes. There was already a plan to replace ru-wlan and Science within the FNWI buildings by the RU-wide Eduroam and ru-wlan, but the wireless network usage has grown so fast that we can not wait for this plan to be realized. Last week some wireless users at times could not even get an IP address, although the lease time had been brought down to 30 minutes. Therefore this temporary measure became necessary on such short notice.

Marcel Kuppens 4 mar 2013 12:20 (CET)

Short interval in wireless network service

On Monday feb 18 at 6:00 pm there will be some maintenance at the wireless network which will effect the following locations at Toernooiveld:

FNWI cellar A1
FEL
Huygens: Library of Science, terrace behind Huygens, cantine, room HG-1.132
KDV1 en KDV2
Linnaeus building
Logistic Centre
Mercator I
Mercator II, ground floor and 7nd floor
Mercator III, 2nd floor
Transitorium FNWI (ACSW and FELIX)
UBC

We expect the service will be completely available again within 30 minutes.

Marcel Kuppens 18 feb 2013 10:53 (CET)

Mail problems after supplying password to phishers

 Begin         : 20130212
 End           : 20130214 (for now)
 Affected      : Users of Science mail, specifically of horde webmail

The last few days three Science users have supplied their Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam. This time they even used a fake copy of the horde Science webmail website. The big differences with the real horde Science webmail website are:

  • the URL is not within science.ru.nl
  • the connection is not a secure https connection, there is no lock
  • the username and password do not arrive at C&CZ servers, but in the hands of Internet criminals.

PLEASE: do not naively click on a link in an e-mail!

New Radius server for ru-wlan and eduroam (wireless)

On Monday, January 28th 2013 at 8:00 am, one of the servers that is being used by the wireless network of the RU, will be replaced. This replacement will affect you as a user of the wireless networks ru-wlan and eduroam: There will appear a new certificate when connecting. You can just accept this, after which the connection should work. If this appears not to be the case, then it’s best that you remove your old Eduroam- respectively your old RU-WLAN settings first to activate the new connection .

Specifically for iPhone / iPad users: We recommend that you first remove your old Eduroam- respectively your old RU-WLAN profile before activating the new connection without a profile. If that unexpectedly fails, please review the information on www.ru.nl/wireless for iPhone/iPads. If necessary, you can also download a new profile from that site.

Marcel Kuppens 17 jan 2013 10:53 (CET)

Homeserver bundle crashed

  Begin         : 2013-01-16 ~ 13:30
  Einde         : 2013-01-16 ~ 14:00
  Affected      : all FNWI users with a homedirectory on fileserver bundle

Because the file server crashed, it had to be rebooted.

LDAP server vernieuwd

  Date         : 20121214
  Affected     : Users with a Fedora based desktop PC

Older Fedora desktop PC's may experience startup problems after an upgrade of one of our LDAP servers. A fix is available and has been applied. If you still encounter this problem, please contact C&CZ.

Mail problems after supplying password to phishers

  Begin        : 20121116 04:45
  End          : 20121117 ca 12:00
  Affected     : Users of horde webmail and users wanting to send mail to e.g. hotmail.com

Horde webmail again appeared to be misused for sending spam. This could happen because a naive user gave the Science password to phishers/spammers. After first stopping horde, early Friday morning we disabled the account of the naive user and restarted horde. Saturday morning it appeared that this short spam-outbreak had caused administrators of hotmail.com to add our mail server to their blacklist. Therefore we switched the IP-number of this mail server Saturday morning.

Homeserver bundle will be rebooted

  Begin         : 2012-10-24 ~ 12:45
  Einde         : 2012-10-24 ~ 13:00
  Affected      : all FNWI users with a homedirectory on fileserver bunlde

Because the file server refuses to accept a spare disk, it needs a reboot.

Homeserver bundle unavailable

  Begin         : 2012-10-22 12:15
  End           : 2012-10-22 13:00
  Affected      : all FNWI users with a homedirectory on fileserver bunlde

At the moment, we are solving the problem.

Services unavailable due to power and network outage

  Begin         : 20121018 03:00
  End           : 20121018 10:00
  Affected      : all users until 09:30; afterwards: "bundle" home directories, wireless, "plus" network shares and several websites

During the night of wednesday on thursday a power outage resulted in a network outage in the basement computing facilities. The power was restored to the network equipment using a bypass thus circumventing the UPS at about 09:15. Further checks implied that most servers had not become powerless so that most services became automatically available again. Network drivers on "bundle" had to be restarted in order to get access to home directories for a large number of users. Furthermore, several websites had to be restarted which made it possible for PC's to boot properly. During the day, an unrelated issue with the RAID storage of "plus" has been fixed as well granting access to the following network shares: sofie, ams*, molchem, mb*, encapson, milkun4, snn, neuropi, digicd. carta, ... Since wireless devices were unable to acquire IP addresses, i.e. gain access to the network, a split-brain situation was diagnosed within the DHCP service which was resolved around 13:00.

Announced downtime: home server "pile" down for reboot

  Begin        : 20121012 07:00
  End          : 20121012 09:00
  Affected     : Users with homedirectory server "pile" (as can be seen on http://DIY.science.ru.nl)

Next Friday morning, the home server "pile" will be rebooted. There are problems with the snapshots, which could make a reboot take more time. Therefore we schedule the reboot for early next Friday.

Peage top-up unit near Huygens restaurant in maintenance

In order to test new software, the Peage top-up unit near the Huygens restaurant was switched to maintenance mode. This unit is not used often yet, therefore this wil not have caused problems. Students that wanted to top-up their Peage account, could do that only elsewhere on campus. See the http://www.ru.nl/peage Peage website], locations are the halls of the Erasmus, Spinoza and Library buildings.

Eduroam incoming doesn't work for iPhone/iPad/iPod

  Begin         : spring 2012 (?)
  End           : 20121005
  Affected      : incoming Eduroam users with an iPhone/iPad/iPod

The UCI network management reports that at this moment the incoming version of Eduroam doesn't work for iPhone/iPad/iPod. A solution is being worked upon. Eduroam incoming means that one uses the wireless network of a remote institute, with authentication (login/password) being checked by RU or Science.

Horde webmail server down because of spam

  Begin        : 20120925 23:05
  End          : 20120926 10:20
  Affected     : Users of horde webmail

Yesterday evening, horde webmail appeared to be misused for sending spam. This could happen because a naive user gave the Science password to spammers. First we stopped horde. This morning we disabled the account of the naive user and restarted horde.

Disk server "Stack" offline

  Begin        : 20120924 06:30
  End          : 20120924 09:35
  Affected     : Users of disk volumes on file server Stack.

Disk server "Plenty" offline

  Begin        : 20120924 06:30
  End          : 20120924 09:00
  Affected     : Users of disk volumes on file server Plenty. The S and T disks that are used in the PC rooms.

During the weekly reboot (monday mornings), the server got stuck in the BIOS.

Announced downtime: home server "pile" down for replacement

  Begin        : 20120724 07:00
  End          : 20120724 09:00 (ca)
  Affected     : Users with homedirectory server "pile" (as can be seen on http://DIY.science.ru.nl)

Next Tuesday morning, the home server "pile" will be replaced by a new, more powerful server. Because the data have been synchronized with the new server, there will not be much downtime.

Postponed: Announced downtime: home server "pile" down for replacement

The downtime below has been postponed, because we had a few questions on the new server, that could not be answered in time. To be continued...

  Begin        : 20120724 07:00
  End          : 20120724 09:00 (ca)
  Affected     : Users with homedirectory server "pile" (as can be seen on http://DIY.science.ru.nl)

Next Tuesday morning, the home server "pile" will be replaced by a new, more powerful server. Because the data have been synchronized with the new server, there will not be much downtime. The new server should be very dependable: hardware RAID-6, double processors and power supplies and a 5-year support contract from the supplier. The performance has improved, e.g. by using hardware RAID with a 1 GB write cache with battery backup.

Partly announced downtime for mailman + horde webmail server

  Begin        : 20120712 09:09
  End          : 20120712 14:00 (ca)
  Affected     : Users of horde webmail and/or mailman mailing lists

This morning, horde webmail appeared to be misused for sending spam. This could happen because naive users gave their Science password to spammers. After we found out who the users were and had them change their password, we decide to also replace a defective cpu fan. Therefore also Mailman mailing lists will be down from 13:00 to 14:00 hours.


SMTP server blacklisted by MS Live Hotmail

  Begin        : 20120711 03:08
  End          : 20120711 14:55
  Affected     : Science mail users trying to send mail to MS-domains: hotmail.com, live.com, ...

This morning, users reported that mail from smtp.science.ru.nl to hotmail users was being bounced by hotmail. We have tried to let the hotmail administrators change this fast, but when this took too long, we changed the IP-number of our smtp-server.

Planned service interruption: file server with problems

  Begin        : 20120622 17:03
  End          : 20120624 19:30
  Affected     : stack fileservices

A hardware failure of a boot disk of the fileserver stack was reported Friday morning June 22. We decided to repair this after working hours. Thus at approximately 17:00 the defective boot disk was removed from the machine and replaced by a spare one. Enabling the disk, making it bootable, restoring file systems and rebooting the machine (after removing all snapshots) took a lot of time. When this was resolved Friday evening, the NFS/SMB fileservice was not active on the mounted filesystems. It took a reboot Sunday evening to resolve all problems.

Tracelab server poly defective

  Begin       : 20120621 14:12
  End         : 20120621 17:15
  Affected    : Tracelab for users. For administrators also Prism&Deploy and the WDS-service

A hardware failure of the server poly was reported at 2012-06-21 14:12. After a restart of the machine, it stopped working again. No more recoveries were attempted and an identical spare machine was outfitted with the disks from the defective server. Disks had to be synchronized before making the machine available again.

Servers without electric power

  Begin       : 20120607 13:45
  End         : 20120607 15:30
  Affected    : e-mail and users of the fileservers bundle, heap and stack

A power failure in a rack in a server room brought some C&CZ servers down. After less than two hours all problems were dealt with. Affected systems ware mainly: postvak (Science mail server), bundle (user homedisk), heap/stack (network discs), resser/kookpunt/brievenbus/rustug (mail transport smtp servers)

Planned Service: website-databases and maybe Linux clients

20 Apr 2012 17:00 - 17:15

A defective hard disc has been replaced in a server, but the server needs to be rebooted to ensure that this is reboot proof. The MySQL database of roughly 70 websites will therefore be down for a short time. Since this server also provides the Kerberos authentication for Linux clients, Linux clients might encounter service interruptions during a short period.

Windows server "plenty" with xpsoftware unavailable

Thursday July 7, around 13.00 hours the server "plenty" could not be reached. Because this server serves the "xpsoftware" share for the Managed Windows PC's, all these PC's had a problem. After the server was restarted and the disks had been checked, it was available again at 14:26.


Downtime Science servers: Sunday July 3, 09:00 - 12:00 hours

In order to improve the cooling of a server room, we plan to move three racks of Science servers a few meters on Sunday morning, July 3. We will have to switch off a lot of servers temporarily. Therefore several services will be unavailable some time starting July 3, 09:00 hours. We expect the downtime will last until 10:00 hours for servers with a lot of different users. The cn compute cluster will probably be fully operational again at 12:00 hours.

The servers/services affected are:

fileservers: plenty/pile/bundle with shares like:
             amsbackup2 bbb-priv botany bsweet comsol exoarchief gi3 hfml-data ifl iris
             lambiek mestrelab mi1/2/3 molchem2 molphtec morph multimedia olsen pcb planthgl
             sdisk share snn2 spmdata1 tdisk tece temp wallpaper xpcursus xpsoftware
potkast: films via Blackboard
ts2: Windows Terminal Server
lilo1: Linux Login Server, alternative: lilo/lilo2
cn compute cluster
horde webmail
License server for: Comsol

With apologies for the inconvenience
C&CZ

Peter van Campen 22 jun 2011 09:57 (UTC)

Network outage June 22, 10:55-11:30

This morning, in the network hub for Huygens South a UPS (battery power supply) went down, which made a set of network switches loose power. Because of this, users in Huygens wing 1 and spin-off companies lost their connection to the network. After bypassing the UPS, everything was up and running again at 11:30. We are still searching for the exact origin of this outage.

New SSH keys for new login servers

The LInux LOgin server lilo has been replaced. The name now points to the new machine lilo2, because that one is faster than the other login server lilo1. Therefore it is quite normal to accept once the new SSH-key.

Planned Service: Limited computer services

12 Feb 2011 7:00 - 11:00

A backup cooling system will be installed in our main computer room. Therefore the air conditioning system must be switched off, which means that most of the computer facilities in this room must be shut down. This includes the cluster nodes cn00 through cn53 and many of the web- and file- (network share) servers. It is advised to expect a very limited service level. We will try to keep all home directories and the mail system available. For detailed information about the impact please contact C&CZ.

Printer lp5

24 Jan 2011 - 11 Mar 2011

Printer lp5 has been moved to HG00.089. You can't use this printer at the moment, there's a problem with the power supply unit.

Fixed phone problem

7 Mrt 2011

You can't reach certain fixed phones at the university right now, mobile phones and Skype do work ok though.

Mailserver blacklisted

4 Feb 2011 9:00 - 12:00

One of our mail servers has been sending loads of spam after a successful phishing attack. Since then, our server has been blacklisted on several domains. Currently this affects the delivery of email to @hotmail and @live addresses.