# \#nc21 **URL:** https://help.nextcloud.com/tag/nc21/218.md [Latest](https://help.nextcloud.com/latest.md) · [Categories](https://help.nextcloud.com/categories.md) · [Tags](https://help.nextcloud.com/tags.md) --- ## [How to enable Secure View for tagged files in group folders](https://help.nextcloud.com/t/how-to-enable-secure-view-for-tagged-files-in-group-folders/110075)
**Author:** [@darccio](https://help.nextcloud.com/u/darccio)\ **Replies:** 1\ **Last updated:** [June 19, 2025, 5:04am UTC](https://help.nextcloud.com/t/how-to-enable-secure-view-for-tagged-files-in-group-folders/110075 "2025-06-19T05:04:14Z")
I’m having a hard time trying to accomplish something that seems possible, but maybe I’m missing something else. I want to enable Secure view for tagged files as “confidential”. The tag is visible in the collaborative t… --- ## [Nextcloud Displays White Screen on Desktop After Upgrade](https://help.nextcloud.com/t/nextcloud-displays-white-screen-on-desktop-after-upgrade/207611)
**Author:** [@sophi-josephine](https://help.nextcloud.com/u/sophi-josephine)\ **Replies:** 9\ **Last updated:** [February 20, 2025, 8:50am UTC](https://help.nextcloud.com/t/nextcloud-displays-white-screen-on-desktop-after-upgrade/207611 "2025-02-20T08:50:04Z")
Hi everyone, Since upgrading to Nextcloud 21, my installation works perfectly with API clients, but I’m having issues when trying to log in via a web browser. Instead of the usual interface, I get a Whitescreen with an … --- ## [Multiple user agents in the same line of log](https://help.nextcloud.com/t/multiple-user-agents-in-the-same-line-of-log/217336)
**Author:** [@ychaouche](https://help.nextcloud.com/u/ychaouche)\ **Replies:** 1\ **Last updated:** [February 12, 2025, 4:23pm UTC](https://help.nextcloud.com/t/multiple-user-agents-in-the-same-line-of-log/217336 "2025-02-12T16:23:16Z")
The Basics Nextcloud Server version 21.0.2.1 Operating system and version Debian 10 Web server and version nginx 1.14.2 PHP version 7.3 Is this the first time you’ve seen this error? (Yes) When did this problem seem to … --- ## [Windows illegal filename characters - can't find the github bug report](https://help.nextcloud.com/t/windows-illegal-filename-characters-cant-find-the-github-bug-report/117924)
**Author:** [@alexanderdd](https://help.nextcloud.com/u/alexanderdd)\ **Replies:** 13\ **Last updated:** [December 10, 2024, 2:54pm UTC](https://help.nextcloud.com/t/windows-illegal-filename-characters-cant-find-the-github-bug-report/117924 "2024-12-10T14:54:38Z")
Hello, pretty sure that a bug report on github already exists, but now I could not find it, also not here on the forum. Can someone help me find it? steps to reproduce: in webinterface, create file with \* in filename… --- ## [Nextcloud 21 nodeinfo and webfinger](https://help.nextcloud.com/t/nextcloud-21-nodeinfo-and-webfinger/109423)
**Author:** [@nextcloud-jeforce](https://help.nextcloud.com/u/nextcloud-jeforce)\ **Replies:** 37\ **Last updated:** [October 23, 2024, 10:48am UTC](https://help.nextcloud.com/t/nextcloud-21-nodeinfo-and-webfinger/109423 "2024-10-23T10:48:01Z")
Since updating to 21 or a major issue, I created the following message: Your web server is not set up correctly to resolve “/.well-known/webfinger”. See the documentation for more information. \*Your web server is not … --- ## [\[SOLVED\] Nextcloud cannot connect to SMTP server known to be running: how to fix?](https://help.nextcloud.com/t/solved-nextcloud-cannot-connect-to-smtp-server-known-to-be-running-how-to-fix/108509)
**Author:** [@satsuma](https://help.nextcloud.com/u/satsuma)\ **Replies:** 4\ **Last updated:** [October 15, 2024, 9:46am UTC](https://help.nextcloud.com/t/solved-nextcloud-cannot-connect-to-smtp-server-known-to-be-running-how-to-fix/108509 "2024-10-15T09:46:34Z")
Nextcloud version (eg, 20.0.5): 21.0.0 Operating system and version (eg, Ubuntu 20.04): Debian 10 (via Linode Marketplace app) Apache or nginx version (eg, Apache 2.4.25): Apache, version don’t know. PHP version (eg,… --- ## [Connection refused from within nextcloud web app but works from shell](https://help.nextcloud.com/t/connection-refused-from-within-nextcloud-web-app-but-works-from-shell/123736)
**Author:** [@vitachaos](https://help.nextcloud.com/u/vitachaos)\ **Replies:** 2\ **Last updated:** [September 11, 2024, 8:01pm UTC](https://help.nextcloud.com/t/connection-refused-from-within-nextcloud-web-app-but-works-from-shell/123736 "2024-09-11T20:01:37Z")
When I am trying to run sudo -u www-data /var/www/html/nextcloud/occ vitachaos -n --path=vitachaos/files/Educational/ I am getting the following error: An unhandled exception has been thrown: Doctrine\\DBAL\\Excepti… --- ## [Undefined class constant 'MAJOR\_VERSION' after upgrade to 21](https://help.nextcloud.com/t/undefined-class-constant-major-version-after-upgrade-to-21/108736)
**Author:** [@leon12](https://help.nextcloud.com/u/leon12)\ **Replies:** 5\ **Last updated:** [August 29, 2024, 3:01pm UTC](https://help.nextcloud.com/t/undefined-class-constant-major-version-after-upgrade-to-21/108736 "2024-08-29T15:01:41Z")
Hi, I just updated my nextcloud docker instance to a newer version. However, now when I want to access the settings, files or contacts, I get an error page. The calender works fine. Nextcloud version (eg, 20.0.5): 21.0… --- ## [Fail to download files bigger than 1.2GB](https://help.nextcloud.com/t/fail-to-download-files-bigger-than-1-2gb/201890)
**Author:** [@sheshman](https://help.nextcloud.com/u/sheshman)\ **Replies:** 2\ **Last updated:** [August 28, 2024, 6:07am UTC](https://help.nextcloud.com/t/fail-to-download-files-bigger-than-1-2gb/201890 "2024-08-28T06:07:29Z")
Support introHello, Using Nextcloud 21.09 on Cyberpanel 2.3 with PHP 8.0, when i try to download a file more than 1.2GB it returns Nextcloud version (eg, 29.0.5): 21.09 Operating system and version (eg, Ubuntu 24.04): U… --- ## [Ihr Speicher ist voll, daher können keine Dateien mehr aktualisiert oder synchronisiert werden!✖](https://help.nextcloud.com/t/ihr-speicher-ist-voll-daher-konnen-keine-dateien-mehr-aktualisiert-oder-synchronisiert-werden/125051)
**Author:** [@bnj](https://help.nextcloud.com/u/bnj)\ **Replies:** 45\ **Last updated:** [August 23, 2024, 6:41am UTC](https://help.nextcloud.com/t/ihr-speicher-ist-voll-daher-konnen-keine-dateien-mehr-aktualisiert-oder-synchronisiert-werden/125051 "2024-08-23T06:41:14Z")
Ich bekomme in Nextcloud die Meldung, dass mein Speicher voll ist und kann nicht mehr synchronisieren. Nun habe ich erstens festgestellt dass massenhaft Daten im Papierkorb lagen, die ich bereits gelöscht habe. Diese … --- ## [Accessing nextcloud from anywhere](https://help.nextcloud.com/t/accessing-nextcloud-from-anywhere/113428)
**Author:** [@Johnscaban](https://help.nextcloud.com/u/Johnscaban)\ **Replies:** 57\ **Last updated:** [August 19, 2024, 3:32pm UTC](https://help.nextcloud.com/t/accessing-nextcloud-from-anywhere/113428 "2024-08-19T15:32:59Z")
Nextcloud Version: 21.0.0 Operating System: Ubuntu 20.04 LTS Apache2 and PHP 7.4 Issue: I am unable to access nextcloud from outside my network. I recently installed ubuntu 20.04 and I set up as static ip. After that… --- ## [Disable server-side-encryption](https://help.nextcloud.com/t/disable-server-side-encryption/125176)
**Author:** [@J-B](https://help.nextcloud.com/u/J-B)\ **Replies:** 3\ **Last updated:** [August 13, 2024, 6:05am UTC](https://help.nextcloud.com/t/disable-server-side-encryption/125176 "2024-08-13T06:05:10Z")
Hello, I activated the server-side encryption a long time ago. I would like to deactivate the encryption now and am afraid that the data will no longer be readable afterwards. Does anyone have experience with this? Is … --- ## [NC 21 and mysql 5.7 on Shared Hosting](https://help.nextcloud.com/t/nc-21-and-mysql-5-7-on-shared-hosting/112454)
**Author:** [@ocruz](https://help.nextcloud.com/u/ocruz)\ **Replies:** 11\ **Last updated:** [October 20, 2023, 3:09pm UTC](https://help.nextcloud.com/t/nc-21-and-mysql-5-7-on-shared-hosting/112454 "2023-10-20T15:09:56Z")
Nextcloud version (eg, 20.0.5): 21 Operating system and version (eg, Ubuntu 20.04): Ubuntu Apache or nginx version (eg, Apache 2.4.25): Apache PHP version (eg, 7.4): 7.4 The issue you are facing: Im just new. Insta… --- ## [Not able to update any app in my nextcloud instance](https://help.nextcloud.com/t/not-able-to-update-any-app-in-my-nextcloud-instance/121613)
**Author:** [@vitachaos](https://help.nextcloud.com/u/vitachaos)\ **Replies:** 9\ **Last updated:** [August 2, 2024, 5:16am UTC](https://help.nextcloud.com/t/not-able-to-update-any-app-in-my-nextcloud-instance/121613 "2024-08-02T05:16:55Z")
after failing to update from the UI , I tried updating from the command line but that too doesnt seem to work. I am running single instance on |Operating System:|Linux 4.4.154-95-rockchip-gd2ab1f26e1b3 aarch64| PHP Ve… --- ## [Nexcloud 28 with DUO Security 2FA (Two Factor)](https://help.nextcloud.com/t/nexcloud-28-with-duo-security-2fa-two-factor/119061)
**Author:** [@ardhie](https://help.nextcloud.com/u/ardhie)\ **Replies:** 12\ **Last updated:** [August 1, 2024, 6:06pm UTC](https://help.nextcloud.com/t/nexcloud-28-with-duo-security-2fa-two-factor/119061 "2024-08-01T18:06:14Z")
I use Ubuntu 22.04, APACHE, PHP 8.2 and Nexcloud 28 open and download from then extract zip to your Nextcloud path at folder \[nextcloud\_path\]/apps/twofactor\_duo ========================================================… --- ## [Netcloud 20.0.1 well-known/webfinger and well-known/nodeinfo errors](https://help.nextcloud.com/t/netcloud-20-0-1-well-known-webfinger-and-well-known-nodeinfo-errors/113158)
**Author:** [@jstockley](https://help.nextcloud.com/u/jstockley)\ **Replies:** 14\ **Last updated:** [April 30, 2024, 6:07am UTC](https://help.nextcloud.com/t/netcloud-20-0-1-well-known-webfinger-and-well-known-nodeinfo-errors/113158 "2024-04-30T06:07:14Z")
Hey all, I have been running nextcloud 21 on my ubuntu 20.04.2 VM and have been running into this issue There are some warnings regarding your setup. Your web server is not properly set up to resolve "/.well-known/webf… --- ## [LDAP password change with AD (Server 2019) fails with Unknown extended request OID, data 0, v4563](https://help.nextcloud.com/t/ldap-password-change-with-ad-server-2019-fails-with-unknown-extended-request-oid-data-0-v4563/115065)
**Author:** [@dtuecks](https://help.nextcloud.com/u/dtuecks)\ **Replies:** 4\ **Last updated:** [February 23, 2024, 5:01pm UTC](https://help.nextcloud.com/t/ldap-password-change-with-ad-server-2019-fails-with-unknown-extended-request-oid-data-0-v4563/115065 "2024-02-23T17:01:52Z")
I integrated LDAP support with AD (Windows Server 2019). Unfortunately my users cannot change passwords. My setup is as follows: Nextcloud 21.0.1 on Ubuntu 20.04.2 LTS. Installed Windows Server 2019 with AD DS and … --- ## [NC 21.0.4.1 MariaDB 10.3.31 Upgrade from PHP 7.4 to 8.0: Failed to connect to the database: An exception occurred in the driver: SQLSTATE\[HY000\] \[2006\] MySQL server has gone away in /var/www/html/nextcloud/lib/private/DB/Connection.php:85](https://help.nextcloud.com/t/nc-21-0-4-1-mariadb-10-3-31-upgrade-from-php-7-4-to-8-0-failed-to-connect-to-the-database-an-exception-occurred-in-the-driver-sqlstate-hy000-2006-mysql-server-has-gone-away-in-var-www-html-nextcloud-lib-private-db-connection-php-85/124286)
**Author:** [@herrep](https://help.nextcloud.com/u/herrep)\ **Replies:** 3\ **Last updated:** [February 12, 2024, 5:26am UTC](https://help.nextcloud.com/t/nc-21-0-4-1-mariadb-10-3-31-upgrade-from-php-7-4-to-8-0-failed-to-connect-to-the-database-an-exception-occurred-in-the-driver-sqlstate-hy000-2006-mysql-server-has-gone-away-in-var-www-html-nextcloud-lib-private-db-connection-php-85/124286 "2024-02-12T05:26:58Z")
Dear community, My server hosts Nextcloud version 21.0.4.1 and has been upgraded to Ubuntu 20.04.3 LTS. In the course of this update, PHP 7.4 got replaced by PHP 8.0. After this, Nextcloud access to the database (MariaD… --- ## [The downloaded file does not match the checksum, it will be resumed](https://help.nextcloud.com/t/the-downloaded-file-does-not-match-the-checksum-it-will-be-resumed/119669)
**Author:** [@maxxer](https://help.nextcloud.com/u/maxxer)\ **Replies:** 3\ **Last updated:** [January 31, 2024, 11:11pm UTC](https://help.nextcloud.com/t/the-downloaded-file-does-not-match-the-checksum-it-will-be-resumed/119669 "2024-01-31T23:11:18Z")
Hi. I’ve a folder shared from a foreign NC19 to our NC21, and from time to time I get the error above on some files in that directory. As I can have access to the remote NC19 installation, I usually move the file away … --- ## [cURL error 28: Operation timed out after 30000 milliseconds with 0 bytes received - Federated Nextcloud](https://help.nextcloud.com/t/curl-error-28-operation-timed-out-after-30000-milliseconds-with-0-bytes-received-federated-nextcloud/113088)
**Author:** [@Argon267](https://help.nextcloud.com/u/Argon267)\ **Replies:** 7\ **Last updated:** [January 10, 2024, 8:02pm UTC](https://help.nextcloud.com/t/curl-error-28-operation-timed-out-after-30000-milliseconds-with-0-bytes-received-federated-nextcloud/113088 "2024-01-10T20:02:29Z")
Nextcloud version: 21.0.1.1 Operating system and version: Ubuntu 20.04 Apache or nginx version: Apache 2.4.41 PHP version: 7.4 The issue you are facing: Sharing files over a federated folder. Bigger files (\>500MB) r… --- ## [Can't access nextcloud after setting up redis](https://help.nextcloud.com/t/cant-access-nextcloud-after-setting-up-redis/118233)
**Author:** [@notmike](https://help.nextcloud.com/u/notmike)\ **Replies:** 24\ **Last updated:** [December 29, 2023, 3:41pm UTC](https://help.nextcloud.com/t/cant-access-nextcloud-after-setting-up-redis/118233 "2023-12-29T15:41:33Z")
Support introposted this on “installation” section, didn’t notice a support section until now i’m new to nextcloud. Almost done setting up a fresh nextcloud 21 until i reached redis. I followed this guide for my nextcl… --- ## [Encrypt:scan:legacy-format finds files which doesn't have a proper header in files\_version and files\_trashbin](https://help.nextcloud.com/t/encryptlegacy-format-finds-files-which-doesnt-have-a-proper-header-in-files-version-and-files-trashbin/114672)
**Author:** [@floogy](https://help.nextcloud.com/u/floogy)\ **Replies:** 3\ **Last updated:** [December 3, 2023, 1:03pm UTC](https://help.nextcloud.com/t/encryptlegacy-format-finds-files-which-doesnt-have-a-proper-header-in-files-version-and-files-trashbin/114672 "2023-12-03T13:03:38Z")
Hello, what shall I do with the files encrypt:scan:legacy-format finds, which doesn’t have a proper header, and are located in files\_version and files\_trashbin? It found 56 files. I guess they all may came with a header … --- ## [Collabora does'nt open documents in firefox correctly](https://help.nextcloud.com/t/collabora-doesnt-open-documents-in-firefox-correctly/175291)
**Author:** [@Tomek\_Jelonek](https://help.nextcloud.com/u/Tomek_Jelonek)\ **Replies:** 2\ **Last updated:** [November 28, 2023, 2:57pm UTC](https://help.nextcloud.com/t/collabora-doesnt-open-documents-in-firefox-correctly/175291 "2023-11-28T14:57:33Z")
I encountered a problem today. Collabora opens blank documents. The problem started after updating Firefox to version 120. After reinstalling Firefox to 119, documents open correctly again. What is it about ? are these a… --- ## [How to upgrade to the current stable major version?](https://help.nextcloud.com/t/how-to-upgrade-to-the-current-stable-major-version/127726)
**Author:** [@ygoe](https://help.nextcloud.com/u/ygoe)\ **Replies:** 5\ **Last updated:** [November 21, 2023, 3:44pm UTC](https://help.nextcloud.com/t/how-to-upgrade-to-the-current-stable-major-version/127726 "2023-11-21T15:44:09Z")
I can’t help but upgrading Nextcloud is a sure source of frustration every single time. Each upgrade makes me think about looking for alternatives but then I can’t find the time for that. This time I have installed 21.0… --- ## [Low cost Nextcloud Hosting](https://help.nextcloud.com/t/low-cost-nextcloud-hosting/114497)
**Author:** [@nunobispo](https://help.nextcloud.com/u/nunobispo)\ **Replies:** 5\ **Last updated:** [November 19, 2023, 9:10am UTC](https://help.nextcloud.com/t/low-cost-nextcloud-hosting/114497 "2023-11-19T09:10:14Z")
Hello, My name is Nuno Bispo and I’m a software developer with over 11 years experience. This year I started a new startup with the goal of providing cloud services to a more generic audience and all base on open-source… --- ## [Can't upgrade. Stuck in step 5](https://help.nextcloud.com/t/cant-upgrade-stuck-in-step-5/170992)
**Author:** [@dstu](https://help.nextcloud.com/u/dstu)\ **Replies:** 4\ **Last updated:** [November 17, 2023, 12:56pm UTC](https://help.nextcloud.com/t/cant-upgrade-stuck-in-step-5/170992 "2023-11-17T12:56:34Z")
Hi, I’m running version 20.0.14 and I’m trying to upgrade to version 21.0.9, but when I click on the “Open updater” button, I get this message: Step 5 is currently in process. Please reload this page later. It’s bee… --- ## [How d you guys listen to music from nextcloud on the iphone?](https://help.nextcloud.com/t/how-d-you-guys-listen-to-music-from-nextcloud-on-the-iphone/121903)
**Author:** [@vitachaos](https://help.nextcloud.com/u/vitachaos)\ **Replies:** 6\ **Last updated:** [November 13, 2023, 5:23pm UTC](https://help.nextcloud.com/t/how-d-you-guys-listen-to-music-from-nextcloud-on-the-iphone/121903 "2023-11-13T17:23:31Z")
I thought I could use nextcloud audio player on the iphone! but I have discovered when the phone screen times out the audio player also stops playing. Does anyone uses Nextcloud to listen to music from phone ? I don’t t… --- ## [How to verify notify\_push works correctly?](https://help.nextcloud.com/t/how-to-verify-notify-push-works-correctly/116685)
**Author:** [@h3rb3rt](https://help.nextcloud.com/u/h3rb3rt)\ **Replies:** 5\ **Last updated:** [November 3, 2023, 5:24pm UTC](https://help.nextcloud.com/t/how-to-verify-notify-push-works-correctly/116685 "2023-11-03T17:24:18Z")
Hi, I worked my way through the notify\_push installation, went quite smooth on my server. Used the wizzard on the CLI. Now everything seems setup correct, I also opened up the ports on my firewall, but how do I verify i… --- ## [Updater.phar only offer old Stable release](https://help.nextcloud.com/t/updater-phar-only-offer-old-stable-release/172772)
**Author:** [@alium](https://help.nextcloud.com/u/alium)\ **Replies:** 3\ **Last updated:** [October 26, 2023, 7:57pm UTC](https://help.nextcloud.com/t/updater-phar-only-offer-old-stable-release/172772 "2023-10-26T19:57:51Z")
I tried to update my running Nextcloud with the Version 21.0.9, because this Version is not compatible with PHP Version 8.1.20. When is run the updater.phar it offers only to Update to my already installed Version 21.0… --- ## [Can't upgrade from 21.0.9 to 22.2.10](https://help.nextcloud.com/t/cant-upgrade-from-21-0-9-to-22-2-10/171177)
**Author:** [@dstu](https://help.nextcloud.com/u/dstu)\ **Replies:** 3\ **Last updated:** [October 21, 2023, 12:01am UTC](https://help.nextcloud.com/t/cant-upgrade-from-21-0-9-to-22-2-10/171177 "2023-10-21T00:01:34Z")
root@Server:/var/www/nextcloud# sudo -u www-data php7.4 ./occ update:check Nextcloud 22.2.10 is available. Get more information on how to update at How to upgrade — Nextcloud latest Administration Manual latest documen… [Next page](https://help.nextcloud.com/tag/nc21/218.md?match_all_tags=true&page=1&tags%5B%5D=nc21)