Servus & Hallo,
Ich hoffe auf eine kleine „Erleuchtung“ da mir gerade die Ideen ausgehen.
Ein Benutzer kann seit 4 Tage keine Termine mehr eintragen, bzw. wenn es versucht wird einen Termin einzutragen bleibt das Einstellungsfenster nach dem „Klick“ auf „Speichern & Schließen“ geöffnet.
Nach ein paar Sekunden (10-15) kommt eine JSON Meldung (siehe Bild), danach schließt man das Fenster manuell. Je länger man sich damit jedoch Zeit lässt, umso mehr Termine werden dadurch im Kalender eingetragen (pro sec. 1-3 Duplikate).
Es ist auch egal ob der Besitzer des Kalenders oder der Kalender über eine „Freigabe“ durch einen zweiten Benutzer bearbeitet wird, der Fehler bleibt gleich.
Ich bin dankbar 
für jeden Idee die euch dazu einfällt.
Chris
dpkg -l | grep -w 'kopano4ucs\|kopano-server-packages\|kopano-webapp\|z-push-kopano'
ii kopano-server-packages 8.7.1.0-0+9.1 all Metapackage to install the entire Kopano Core stack
ii kopano-webapp 3.5.14.2539+111.1 all New and improved WebApp for Kopano
ii kopano-webapp-plugin-desktopnotifications 2.0.3.26+32.3 all Kopano WebApp Desktop notifications plugin
ii kopano-webapp-plugin-filepreviewer 2.2.0.26+24.3 all Kopano File previewer plugin
ii kopano-webapp-plugin-files 2.1.5.305+101.2 all Adds Files functionality to Kopano enabling access to WebDAV and other files backends.
ii kopano-webapp-plugin-filesbackend-owncloud 2.1.0.87+42.5 all Adds Owncloud specific functionality to Kopano Files plugin.
ii kopano-webapp-plugin-filesbackend-smb 2.1.0.50+31.5 all Adds Samba specific functionality to Kopano Files plugin.
ii kopano-webapp-plugin-folderwidgets 3.5.14.2539+111.1 all Kopano WebApp folder widgets plugin
ii kopano-webapp-plugin-mdm 3.0.133+47.1 all Kopano WebApp MDM plugin
ii kopano-webapp-plugin-smime 2.2.2.240+24.3 all Kopano WebApp S/MIME plugin
ii kopano-webapp-plugin-spell 2.0.0.19+37.5 all Kopano WebApp Spellchecker plugin
ii kopano-webapp-plugin-spell-de-de 2.0.0.3+34.4 all Kopano WebApp Spellchecker German dictionary plugin
ii kopano-webapp-plugin-spell-en 2.0.0.1+34.4 all Kopano WebApp Spellchecker English dictionary plugin
ii kopano-webapp-plugin-spell-nl 2.0.0.1+35.4 all Kopano WebApp Spellchecker Dutch dictionary plugin
ii kopano-webapp-plugin-titlecounter 3.5.14.2539+111.1 all Kopano WebApp Titlecounter plugin
ii kopano-webapp-plugin-webappmanual 3.5.14.2539+111.1 all Kopano WebApp Manual plugin
ii kopano4ucs 1.6.2 all Kopano4ucs integration package for Univention Corporate Server
ii kopano4ucs-app 1.6.6 all Package for UCS app specific logic
ii kopano4ucs-lib 1.6.6 all Library package for common Kopano4ucs functions
ii kopano4ucs-schema 1.6.2 all LDAP schema for the Kopano4ucs integration
ii kopano4ucs-udm 1.6.2 all UDM extensions for the Kopano4ucs integration
ii kopano4ucs-webapp 1.6.6 all Kopano4ucs kopano-webapp integration package for Univention Corporate Server
ii kopano4ucs-z-push 1.5.33 all Meta package for Z-Push installation
ii z-push-kopano 2.4.5+0-0 all Z-Push for Kopano
ii z-push-kopano-gabsync 2.4.5+0-0 all GAB sync for Kopano
univention-app info
UCS: 4.4-6 errata786
Installed: adtakeover=5.0 cups=2.2.1 fetchmail=6.3.26 kopano-core=8.7.1.0-1 kopano-webapp=3.5.14.2539-2 letsencrypt=1.2.2-8 samba4=4.10 z-push-kopano=2.4.5
Upgradable:
journalctl -n 50 -u kopano-server
-- Logs begin at Fri 2020-08-07 11:50:01 CEST, end at Thu 2020-10-29 08:43:27 CET. --
Okt 29 01:04:09 ucs kopano-server[31811]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 01:04:14 ucs kopano-server[31811]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 01:04:44 ucs kopano-server[31811]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 01:05:10 ucs kopano-server[31811]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 01:06:12 ucs kopano-server[31811]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 01:06:12 ucs kopano-server[31811]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 01:08:47 ucs systemd[1]: Stopping Kopano Groupware Core Storage Server...
Okt 29 01:08:49 ucs kopano-server[31811]: Shutting down
Okt 29 01:09:47 ucs systemd[1]: kopano-server.service: State 'stop-sigterm' timed out. Killing.
Okt 29 01:09:47 ucs systemd[1]: kopano-server.service: Killing process 31811 (kopano-server) with signal SIGKILL.
Okt 29 01:09:48 ucs systemd[1]: kopano-server.service: Main process exited, code=killed, status=9/KILL
Okt 29 01:09:48 ucs systemd[1]: Stopped Kopano Groupware Core Storage Server.
Okt 29 01:09:48 ucs systemd[1]: kopano-server.service: Unit entered failed state.
Okt 29 01:09:48 ucs systemd[1]: kopano-server.service: Failed with result 'timeout'.
-- Reboot --
Okt 29 01:10:15 ucs systemd[1]: Started Kopano Groupware Core Storage Server.
Okt 29 01:10:16 ucs kopano-server[2042]: Starting kopano-server version 8.7.1 (pid 2042 uid 0)
Okt 29 01:10:16 ucs kopano-server[2042]: Starting kopano-server version 8.7.1 (pid 2042 uid 998)
Okt 29 01:20:19 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 01:20:31 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 01:20:31 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 01:21:01 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 01:21:21 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 01:21:32 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 01:21:32 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 01:22:21 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 01:35:47 ucs kopano-server[2042]: K-1515: Object not found unknown user "Everyone": Everyone not found in LDAP
Okt 29 01:52:50 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 01:52:50 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 01:52:50 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 02:03:41 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 02:04:02 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 02:37:50 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 02:37:50 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 02:52:50 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 02:52:50 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 02:52:50 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 02:52:50 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 03:49:59 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 03:52:50 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 04:35:15 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 04:37:50 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 04:51:02 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 05:03:45 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 05:37:29 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 05:51:33 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 05:51:33 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 05:52:34 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 05:52:34 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 06:33:59 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
Okt 29 06:48:40 ucs kopano-server[2042]: LDAP search error: Can't contact LDAP server. Will unbind, reconnect and retry.
journalctl -u kopano-gateway
-- Logs begin at Fri 2020-08-07 11:50:01 CEST, end at Thu 2020-10-29 08:45:02 CET. --
Sep 17 12:04:15 ucs systemd[1]: Started Kopano Groupware Core IMAP/POP3 Gateway.
Sep 17 12:04:57 ucs kopano-gateway[751]: Starting kopano-gateway version 8.7.1 (pid 751 uid 0)
Sep 17 12:04:57 ucs kopano-gateway[751]: Starting kopano-gateway version 8.7.1 (pid 751 uid 998)
-- Reboot --
Sep 22 03:30:18 ucs systemd[1]: Started Kopano Groupware Core IMAP/POP3 Gateway.
Sep 22 03:31:00 ucs kopano-gateway[751]: Starting kopano-gateway version 8.7.1 (pid 751 uid 0)
Sep 22 03:31:00 ucs kopano-gateway[751]: Starting kopano-gateway version 8.7.1 (pid 751 uid 998)
-- Reboot --
Sep 22 03:58:21 ucs systemd[1]: Started Kopano Groupware Core IMAP/POP3 Gateway.
Sep 22 03:58:55 ucs kopano-gateway[753]: Starting kopano-gateway version 8.7.1 (pid 753 uid 0)
Sep 22 03:58:55 ucs kopano-gateway[753]: Starting kopano-gateway version 8.7.1 (pid 753 uid 998)
Okt 29 01:08:47 ucs systemd[1]: Stopping Kopano Groupware Core IMAP/POP3 Gateway...
Okt 29 01:08:51 ucs kopano-gateway[753]: POP3/IMAP Gateway will now exit
Okt 29 01:08:58 ucs systemd[1]: Stopped Kopano Groupware Core IMAP/POP3 Gateway.
-- Reboot --
Okt 29 01:09:54 ucs systemd[1]: Started Kopano Groupware Core IMAP/POP3 Gateway.
Okt 29 01:09:58 ucs kopano-gateway[990]: Starting kopano-gateway version 8.7.1 (pid 990 uid 0)
Okt 29 01:09:58 ucs kopano-gateway[990]: Starting kopano-gateway version 8.7.1 (pid 990 uid 998)
Gegeben:
UCS & Kopano System virtualisiert auf einem Proxmox 6.1-7.
5 Benutzer mit W10 die über die Web-Kopano Oberfläche die Mail & Kalender Funktionen benutzen.
System läuft bisher seit 15 Monate ohne Probleme.