Differences

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

--- en:aktuelles [2018-09-13 14:23] – Thomas Thiel
+++ en:aktuelles [2019-06-24 10:11] – Thomas Thiel
@@ Line 1: / Line 1: @@
-~~NOTOC~~
+ ~~NOTOC~~
 ====== 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.
 ----
-===== 2018-09-14: Maintenance WiFi Networks =====
+====== 2019-06-24: Loss of central Storage at B-IT ======
+Last Friday around noon we experienced a total loss of several central components of our userstorage for UNIX (NFS) and Windows (SMB). Sadly we had to realize that we lost a rather important large storage component completely, so we had to recover the affected storage areas from our backup to alternative server systems. Because of that, a certain loss of data in the confines of the regular backup schedule (usually daily in the night) has to be expected.
-Due to the continued problems with our core router, we are trying to take some load away from it by changing the routing configuration of our WiFi Networks to other components. Because of that you can expect some outages of the wifi throughout the day.
+The data rescue operation is completed by now, all services were restored again.
 ----
-===== 2018-09-05: Status of the core network routing problem =====
+===== 2019-05-29: New Host Keys login.bit =====
-We just experienced another network outage, which was intended this time to collect data for the problem analysis of the hardware vendor. We continue to work on a solution, utilizing our support contractor and the hardware vendor.
+The SSH Login Server of the b-it was reinstalled and received new host keys. If you want to verify, please refer to the following fingerprints:
-By now we punched down the possible suspects to the IPv6 core of the router, which now remains disabled to ensure a stable IPv4 operation.
+SHA256:
-We thank you all four your continuous patience and support.
+| SHA256:xfo6iWzDsy0MwsKCX1qISP6Q7fuAmeDxlmZI3kiFX1g root@login2 | (ECDSA) |
+| SHA256:xMB8gcZWBVR+5xCDqHpxDkY81oRClxV2HFl1Ft7HKYM root@login2 | (ED25519) |
+| SHA256:QhXyzQWSI6BMGCjafXbgA+UVRLpgtfhPGXr90jNAZ3k root@login2 | (RSA) |
+\\
+MD5:
+| MD5:e5:ab:e3:80:bb:83:ba:b0:bb:df:d3:aa:a7:94:c5:1d root@login2 | (ECDSA) |
+| MD5:b0:d5:91:48:17:9e:70:b5:de:48:66:6c:21:14:37:fc root@login2 | (ED25519) |
+| MD5:3d:8e:c3:d0:33:80:c7:a6:e5:30:6f:c4:da:8b:56:5d root@login2 | (RSA) |
+\\
 ----
+===== 2019-05-20: eduroam, eduroam-cs and the new certificate =====
+Until the replacement of the eduroam-cs certificate within IT, the certificate specified [[en:eduroam|here]] must still be used when connecting to eduroam-cs! We will have completed the conversion to the new CA within the next few days, so you can also use the new certificate within eduroam-cs, as stated in the HRZ newsletter. We will announce this accordingly here.
-===== 2018-09-03: Further problems with our central network routing components =====
+----
+===== 2019-04-29: No Audio available in Room 0.107 =====
-As the recent proceedings in patching up our central routers were not successful, we are continuing to experience massive problems with our core network, resulting in massive performance issues and complete blackouts of network connectivity. This problem is of a non-trivial nature, we are continuing to investigate the issue, utilizing our support partners and the hardware vendor itself.
-At the moment we seem to have pinned down the problem to the IPv6 core of the router. To stabilize the situation as good as possible, we have disabled IPv6 routing for the time being, hoping to reactivate it after resolving the problem.
-Please continue to be patient and remember that the whole setup in this building is completely new, some problems simply were to be expected.
+Because of a device defect, there is currently no audio available in room 0.107. Please bring your own speakers or contact GSG for alternatives. We hope that the replacement amplifier will be installed during week 19.
 ----
+===== 2019-04-16 11:45: Takeover of the regulated help desk operation =====
+From now on, access to our IT Helpdesk in room ** 0.014 ** is open to all students and staff at regular core times. There, we are happy to answer your questions about the IT infrastructure and solve your technical problems.
-===== 2018-08-31: Maintenance window of central network routing components =====
+The help desk is staffed at the following core times:
+^ Weekday ^ core time ^
+| Mon | 10-14 pm |
+| Tue-Thu | 12-16 pm |
+| Fri | 12-14 pm |
+\\
+Please refrain from contacting our staff in other offices (except transponder matters) so that we can do our job properly.
-In the time between 7:30 a.m. and 9:00 a.m. we will update the central routing components. As a direct result there will be total network service outages during this period in the whole c.s. dept. and the b-it. We apologize for the inconvenience.
 ----
-===== 2018-08-28: Outage of network connectivity =====
+===== 2019-04-12 10:00: DNS resolver 131.220.51.34 has been switched off =====
-We just experienced a breakdown of the central routing components of the c.s. dept and b-it. the problem was corrected and we are investigating the cause.
+The DNS resolver 131.220.51.34 had been replaced by
-Thank you for your patience.
+.220.4.11
+.220.4.17
+a00:5ba0:10:330::b
+a00:5ba0:10:330::11
-----
+a few weeks ago and has been turned off on Friday, April 12th, 2019, 10:00 local time.
-===== Commissioning the new print account =====
+(We will return our temporary network 131.220.50.0/23 to the University
+Computing Center shortly.)
+Most machines (computers, printers, scanners, etc.) are configured by DHCP
+automatically and have switched already, We have told about others, that we
+had detected, to the colleagues in the work groups that manage them.
-The printing system known from the Römerstraße is online in a revised version since Monday, 06.08.2018. Further information can be found in the tab "[[en:print | Print Services]]".
+Should there still be machines that are manually configured to use
+.220.51.34 by the users themselves: you have to change the DNS resolver
+setting to the values shown above. However, as far as we can see,
+there are only a few left, that are already known to their
+administration. So the only problematic machines are such that were
+switched off for the last few days.
 ----
-===== Guest WiFi available for Workshops and conferences etc. =====
+===== 2019-01-29: Scanning from the multifunction device "feder" in the BYOD room (U1.040) =====
-For any sort of special event or just for short-time guests we are now offering temporary access to our WiFi infrastructure through a sponsored [[en:guestaccounts|guest portal system]]. If you are hosting an such event or awaiting guests, please [[mailto:gsg@informatik.uni-bonn.de|contact us]] for further information.
+It is now possible to scan from "feder" not only onto a USB storage device, but also into an E-mail. You have to
+login first, using the display of "feder" ("Alternate Login").
+Please don't forget to log out afterwards.
 ----
-===== WiFi network will be down on Friday 2018-07-20 =====
-<HTML><div style='background:#CAF2C1;padding:5px;border:2px solid #00C000'><span style="color:green;font-weight:bold;">UPDATE:</span> we successfully finished the maintenance on the wifi components. All services are back up again.</div></HTML>
-\\
-Due to maintenance on the primary WiFi infrastructure, the WiFi networks of C.S. Dept. and B-IT will be partially down during the morning.
-Please be patient, we will announce the end of the works here.
-Thomas Thiel\\
-GSG