Differences

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

--- en:aktuelles [2021-12-02 09:35] – /home/stud replacement Ignatios Souvatzis
+++ en:aktuelles [2024-01-05 09:11] – 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.
 ----
-===== 2021-12-06 19:00 to 2021-12-07 09:00: works on /home/stud =====
+===== 2023-12-11: Eduroam was out or order =====
+<del>As the Universities Computing Center  [[https://unibonn.statuspage.io/|conveyed (see there for news)]], the [[en:Eduroam]] access is out of order.</del>\\
+\\
+<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"]].\\
+\\
+----
+===== 2023-12-12/13: TVS maintenance window =====
-To facilitate enlargement of /home/stud , it won't be available in
+<html><div class="tpl_update">The tutorial assignment system is operational again.</div>
-the night from
+</html>\\
+\\
+This semester's data will be available until end of semester.\\
+\\
+<del>TVS will not be available on 12th and possibly 13rd of December //from 10am to 12pm,// while doing a software update.
+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 =====
-        Mon, 6th of December to Tue, 7th of December, 2021
+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).
-Also, systems using this set of home directories may need a reboot
+This means that all wifi configurations of your devices that are used to
-(login-stud, pool-u..., bitcuda-NN, ...)
+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.
-Last copy of data from the old /home/stud: Dec 6th, 1900 CET.
+You will find the current [[en:wifistd|fingerprints and certificate downloads]] at the usual place.
-Please stop long-running processes before that.
-We aim to provide availability of the new /home/stud  on Dec 7th, 0900 CET
+The VPN service is *not* affected by these changes.\\
+\\
+----
+=====2023-07-14: Configuration change also for "eduroam-cs"=====
+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]].
-----
+According to HRZ, a connection with the old parameters **won't be possible after July 15th, 2023**.
-===== 2021-11-11: Discontinuation of the "Azure Dev Tools for Teaching" Program =====
-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.\\
+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.]]\\
 \\
 ----
-===== 2021-10-23: BigBlueButton Maintenance =====
+===== 2023-07-10: Student printer (feder) malfunctioning =====
-**Update:** the Upgrade was successfully completed.
+**Update:** The parts have been changed.
-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.\\
+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.\\
 \\
 ----
-===== 2021-10-01: BigBlueButton slides and whiteboard functionality available again =====
+===== 2023-02-02: Wifi services unavailable =====
-a workaround for the problem has just been implemented; Currently running
+**UPDATE (09:40h) : all wifi services are fully restored by now.**
-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
+We are currently experiencing a total loss of WiFi authentication
-cached redirects; if this happens on your browser, please clear all of your browser caches that are associated with the BBB nodes
+inside the whole building of the Computer Science Dept. and the B-IT due
-bbb-node*.informatik.uni-bonn.de or use a alternative browser until the redirects
+to a failure of a central component.
-in your standard browser have expired.
-Thus, the full functionality of the BBB should be restored for the time being.\\
+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.
-===== 2021-10-01: BigBlueButton service without slide functionality =====
-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. \\
+Other services are not affected by the disruption.\\
 \\
 ----
-===== 2021-09-30: BigBlueButton service back online =====
+===== 2023-01-30: New transponder forms =====
-Our BigBlueButton Instance is back online.\\
+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 ]]\\
 \\
 ----
-===== 2021-09-30: BigBlueButton service temporarily unavailable =====
+===== 2022-09-19: Poster printouts unavailable at the moment =====
-The load-balancing layer of our BigBlueButton Instance is temporarily unavailable. We are working on the problem.\\
+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.\\
-----
-===== 2021-09-17: overleaf back online =====
-Overleaf is once again up and running. All Accounts need to be re-created due to the Database-Errors.\\
 \\
 ----
-===== 2021-08-06: unscheduled downtime of overleaf =====
+===== 2022-09-15: Availability of Pool PCs during nighttime =====
-Due to inconsistencies in the DB backend, the overleaf instance of the C.S.Dept. is down at the moment.\\
-\\
+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]].
+\\
 ----
-===== 2021-07-27: unscheduled downtime of BigBlueButton, a b-it fileserver and some VMs =====
+===== 2022-07-19: WiFi Certificate about to expire, replacement imminent =====
-** 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.
+**UPDATE 2022-07-25:** the certificate was successfully replaced.
-I apologize for the inconvenience, we are working on eliminating the problem.
+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.
+\\
 ----
+===== 2022-07-15: E-Mail service computer science & b-it unavailable =====
-===== 2021-06-07 External Connectivity Issues =====
+**Update: The e-mail-service is restored.**\\
+The email addresses @informatik, @cs and @bit are affected. The problem is being worked on.
+\\
-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:
-https://www.hrz.uni-bonn.de/de/betriebsmeldungen/1623044209514
-The problem has been solved by now.
 ----
-===== 2021-05-31 Loss of All Network Connectivity. =====
+===== 2022-04-05: Authentication Problems with Matrix Service =====
-There has been a complete breakdown of all network connections
-within computer science at about ~17:00 due to an error in the
-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.
+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.\\
+\\
 ----
-===== 2021-05-14 Downtime Staffhomes I/II/IV/V/theory/zentral ended. =====
+===== 2022-03-03: new Chat-Function on GSG-Supportpages =====
-The staffhomes on these filesystems are available again, e.g. on login-staff:
+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).
-  * /home/I
+If you want to use the chat, just click on the blue bar on the bottom right part of the page footer.\\
-  * /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]]...
-----
-===== 2021-03-01: New SSH Login Servers  =====
-We deployed two new ssh login servers for you:
-for staffers: login-staff.informatik.uni-bonn.de
-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.
 ----