Differences

This shows you the differences between two versions of the page.

--- en:aktuelles [2022-07-15 11:08] – Torsten Steinhäuser
+++ en:aktuelles [2024-01-05 09:12] – Thomas Thiel
@@ Line 2: / Line 2: @@
 ====== News and Service Indications ======
-Here you will find recent Information and service indications for our infrastructure. If you are interested to receive these informations via email, please subscribe to [[https://lists.iai.uni-bonn.de/mailman/listinfo.cgi/gsg-op|gsg-op@lists.iai.uni-bonn.de]]. We are using this list to announce technical issues, maintenance windows and the results of these proceedings.
+Here you will find recent Information and Service Indications for our infrastructure. If you are interested to receive these informations via email, please subscribe to [[https://lists.iai.uni-bonn.de/mailman/listinfo.cgi/gsg-op|gsg-op@lists.iai.uni-bonn.de]]. We are using this list to announce technical issues, maintenance windows and the results of these proceedings.\\
+\\
 ----
-===== 2022-07-15: E-Mail service informatik & b-it offline =====
+===== 2023-12-11: Eduroam was out or order =====
-The email addresses @informatik, @cs and @bit are affected.\\ The problem is being worked on.
+<del>As the Universities Computing Center  [[https://unibonn.statuspage.io/|conveyed (see there for news)]], the [[en:Eduroam]] access is out of order.</del>
-\\
-----
-===== 2022-04-05: Authentication Problems with Matrix Service =====
-After the last Update of the matrix Service, some users may have experienced problems logging into out matrix service. This problem is now fixed. Existing sessions were not affected by this problem.\\
+<html><div class="tpl_update">Eduroam is working again.</div></html>
+Members and students of the Computer Science department and the  B-IT can also use our own [[en:wifistd|wireless network "802.1X"]].\\
 \\
 ----
-===== 2022-03-03: new Chat-Function on GSG-Supportpages =====
+===== 2023-12-12/13: TVS maintenance window =====
-As we are trying to further accomodate incoming support requests especially from students, we added a new chat function to this page to give you an opportunity to request aid directly from us without the need for a physical helpdesk. If this service is maintainable, we will try to implement it into other central services (like i.e. WUMI).
-If you want to use the chat, just click on the blue bar on the bottom right part of the page footer.\\
-----
-===== 2021-12-09: increased disk quota on /home/stud =====
-After enlargement of /home/stud, we were able to increase the default disk quota for students on that filesystem to 5 GiB / 80000 files. See also at [[en:accounts:students:plattenplatz|Disk Space]]\\
-----
-===== 2021-12-06 19:00 to 2021-12-06 21:00: works on /home/stud =====
-To facilitate enlargement of /home/stud , it wasn't available in
+<html><div class="tpl_update">The tutorial assignment system is operational again.</div>
-the night from
+</html>
-        Mon, 6th of December to Tue, 7th of December, 2021
+This semester's data will be available until end of semester.
-Also, some systems using this set of home directories have needed a reboot
+<del>TVS will not be available on 12th and possibly 13rd of December //from 10am to 12pm,// while doing a software update.
-(login-stud, pool-u..., bitcuda-NN, ...)
+If you still need your data, please read them out before. This will also be possible afterwards, of course, </del>\\
+\\
+----
+===== 2023-08-07: Change  of WiFi Certificate of C.S.dept. and B-IT =====
-Last copy of data from the old /home/stud was: Dec 6th, 1900 CET.
+Today we did renew the certificate for our wifi infrastructure. At the same time we switched over to the new certification authority hosted by the DFN (GEANT, just like the HRZ did some days before, you may remember the mail about eduroam).
-----
+This means that all wifi configurations of your devices that are used to
-===== 2021-11-11: Discontinuation of the "Azure Dev Tools for Teaching" Program =====
+connect to the computer science dept. or the b-it (eduroam-cs and
+.1X) have to be reconfigured to check for the new certificate/and
+or CA.
+You will find the current [[en:wifistd|fingerprints and certificate downloads]] at the usual place.
-Due to new licensing provisions, we are no longer able to offer the “Azure Dev Tools for Teaching” licensing program. Via the program formerly known as "Microsoft Imagine" or "Microsoft Developer Network Academic Alliance (MSDNAA)", students and teaching staff in computer science and B-IT were able to access licensed MS software free of charge.\\
+The VPN service is *not* affected by these changes.\\
 \\
 ----
-===== 2021-10-23: BigBlueButton Maintenance =====
+=====2023-07-14: Configuration change also for "eduroam-cs"=====
-**Update:** the Upgrade was successfully completed.
+The [[https://www.hrz.uni-bonn.de/en/news/reinstall-eduroam-on-all-end-devices-by-15-july-2023|configuration change/re-installation of Eduroam for members of Bonn University]] is also necessary for the Eduroam branch in our building (eduroam-cs). The updated configuration parameters are [[en:eduroam|available on our Web page]].
-Starting at around 11:00 am, we will undergo a comprehensive upgrade of the entire BBB environment to the latest software versions. Since a long overdue restructuring of the load balancing and DB backend systems is pending at the same time, there is unfortunately a longer downtime. Basic functionalities may also be available again at short notice, but the cluster will not be able to develop its full scope of services until late in the afternoon. We expect the work to be completed around 5:00 p.m.\\
+According to HRZ, a connection with the old parameters **won't be possible after July 15th, 2023**.
+If you have an Informatics/B-IT account issued by us, you can (and should preferably) use the network _802.1X_ in our building. [[en:wifistd|Here are the usage instructions.]]\\
 \\
 ----
-===== 2021-10-01: BigBlueButton slides and whiteboard functionality available again =====
+===== 2023-07-10: Student printer (feder) malfunctioning =====
-a workaround for the problem has just been implemented; Currently running
+**Update:** The parts have been changed.
-BBB meetings will not benefit from this yet, but the following ones
-will once again have slides and whiteboard functionality.
-Please note that the workaround may fail on some systems due to
+The student printer in U1.040 (feder) is malfunctioning. We already identified the problem and replacement parts have been ordered. They shall arrive by 12th July 2023. Until then we ask for your patience.\\
-cached redirects; if this happens on your browser, please clear all of your browser caches that are associated with the BBB nodes
-bbb-node*.informatik.uni-bonn.de or use a alternative browser until the redirects
-in your standard browser have expired.
-Thus, the full functionality of the BBB should be restored for the time being.\\
 \\
 ----
-===== 2021-10-01: BigBlueButton service without slide functionality =====
+===== 2023-02-02: Wifi services unavailable =====
-Probably as a result of yesterday's problem, no more slides can currently be displayed in the BBB. Thank you to everyone who reported the problem to us, we are already busy solving the problem. \\
+**UPDATE (09:40h) : all wifi services are fully restored by now.**
-\\
-----
+We are currently experiencing a total loss of WiFi authentication
-===== 2021-09-30: BigBlueButton service back online =====
+inside the whole building of the Computer Science Dept. and the B-IT due
+to a failure of a central component.
-Our BigBlueButton Instance is back online.\\
+We are already working on a solution to the problem. Unfortunately we
-\\
+cannot predict how long these repairs will take. Due to the nature of
+the problem, it could be a longer process.
+Other services are not affected by the disruption.\\
+\\
 ----
-===== 2021-09-30: BigBlueButton service temporarily unavailable =====
+===== 2023-01-30: New transponder forms =====
-The load-balancing layer of our BigBlueButton Instance is temporarily unavailable. We are working on the problem.\\
+There are new versions (V9) of all transponder forms available (German only). If you have saved the forms locally, please replace them with the current versions. You can find those as usual on our homepage:  [[ de:transponder | Transponder ]]\\
 \\
 ----
-===== 2021-09-17: overleaf back online =====
+===== 2022-09-19: Poster printouts unavailable at the moment =====
-Overleaf is once again up and running. All Accounts need to be re-created due to the Database-Errors.\\
+We are unable to print your posters at the moment due to defective hardware in our poster plotter. Please utilize the similar service from the  [[https://www.hrz.uni-bonn.de/en/all-services/print-scan/poster-printing?set_language=en|University IT and Data Center]].\\
 \\
+**Update (2022-10-05):** the plotter has been repaired, we resumed to provide our plotting services.\\
-----
-===== 2021-08-06: unscheduled downtime of overleaf =====
-Due to inconsistencies in the DB backend, the overleaf instance of the C.S.Dept. is down at the moment.\\
 \\
 ----
-===== 2021-07-27: unscheduled downtime of BigBlueButton, a b-it fileserver and some VMs =====
+===== 2022-09-15: Availability of Pool PCs during nighttime =====
-** Update: All central services are by now fully available again. **
-Due to problems with the storage backend of an older virtualization cluster, there are currently massive problems when using some VMs, in particular:
-  *  BigBlueButton Load Balancer (bbb.informatik.uni-bonn.de)
-  *  a central file server of the B-IT
-as well as the machines
-  * vm-wuebbel-01
-  * sentry
-  * mail-info4
-  * bbb4mm
-  * leonov
-  * inf1-srv-01
-  * login.bit.uni-bonn.de
-The affected systems are immediately shut down completely in order to accelerate the repair of the affected storage backend. After repairs have been completed, the systems will be moved to a newer cluster in the short to medium term.
-The central BigBlueButton IT service is also affected, the individual BBB servers are available (ongoing conferences are not affected), but new rooms cannot be opened or existing ones can be entered. I hope to be able to use the load balancer again tomorrow at the latest.
-I apologize for the inconvenience, we are working on eliminating the problem.
+In order to reduce power consumption, the publicly accessible Pool PCs are automatically shut down over night, from 8 p.m. CEST to 8 a.m. CEST.\\
+More information can be found on the [[https://gsg.cs.uni-bonn.de/doku.php?id=en:pool:remoteaccess#availability_at_night|Pool remote access page]].
+\\
 ----
+===== 2022-07-19: WiFi Certificate about to expire, replacement imminent =====
-===== 2021-06-07 External Connectivity Issues =====
+**UPDATE 2022-07-25:** the certificate was successfully replaced.
-Last night and today in the morning we had some connectivity issues due to a problem with our uplink to the Hochschulrechenzentrum (HRZ). The HRZ has issued a maintenance report regarding this incident:
+As the current certificate used for our wifi authentication services is about to
+expire, we will be updating to a new certificate soon. Your operating system could
+be set up to notify you about this for security reasons. If this happens, you can
+safely accept the new certificate and make sure it is the right one by comparing
+the certificate fingerprints to the ones issued on our [[en:wifistd|wifi documentation]] page.
+\\
-https://www.hrz.uni-bonn.de/de/betriebsmeldungen/1623044209514
-The problem has been solved by now.
 ----
-===== 2021-05-31 Loss of All Network Connectivity. =====
+===== 2022-07-15: E-Mail service computer science & b-it unavailable =====
-There has been a complete breakdown of all network connections
+**Update: The e-mail-service is restored.**\\
-within computer science at about ~17:00 due to an error in the
+The email addresses @informatik, @cs and @bit are affected. The problem is being worked on.
-Stack communication of our central router. Individual stack participants
+\\
-got into repetitive reboot loops. We could find the source of the problem
-and eliminate it. All services should be available again.
 ----
-===== 2021-05-14 Downtime Staffhomes I/II/IV/V/theory/zentral ended. =====
+===== 2022-04-05: Authentication Problems with Matrix Service =====
-The staffhomes on these filesystems are available again, e.g. on login-staff:
-  * /home/I
-  * /home/II
-  * /labor/II
-  * /home/IV
-  * /home/V
-  * /home/theory
-===== 2021-03-30: Overleaf Instance in the C.S.Dept./B-IT =====
-For all users of the c.s. Dept and the B-IT, we are now maintaining an overleaf instance for collaborative publishing.
-More Informations about this [[en:overleaf|can be found here]]...
+After the last Update of the matrix Service, some users may have experienced problems logging into out matrix service. This problem is now fixed. Existing sessions were not affected by this problem.\\
+\\
 ----
-===== 2021-03-01: New SSH Login Servers  =====
+===== 2022-03-03: new Chat-Function on GSG-Supportpages =====
-We deployed two new ssh login servers for you:
+As we are trying to further accomodate incoming support requests especially from students, we added a new chat function to this page to give you an opportunity to request aid directly from us without the need for a physical helpdesk. If this service is maintainable, we will try to implement it into other central services (like i.e. WUMI).
-for staffers: login-staff.informatik.uni-bonn.de
+If you want to use the chat, just click on the blue bar on the bottom right part of the page footer.\\
-for students: login-stud.informatik.uni-bonn.de
-The new fingerprints are available at the usual URL:
-https://gsg.cs.uni-bonn.de/doku.php?id=en:ssh:fingerprints
-The old servers will be available for you until friday (2021-03-05,
-:00am). At that time we will shut them down and redirect their DNS
-names to the new servers for some time to aid your migration there.
 ----