Nextcloud problems / questions

You can configure Nextcloud via CLI from command line.
To simplify this, DietPi has added a shortcut to the otherwise necessary

sudo -u www-data php /var/www/nextcloud/occ

Simply run ncc from your console:

ncc list
root@DietPi:~# sudo -u www-data php /var/www/nextcloud/occ
Nextcloud 25.0.2

  command [options] [arguments]

  -h, --help            Display this help message
  -q, --quiet           Do not output any message
  -V, --version         Display this application version
      --ansi            Force ANSI output
      --no-ansi         Disable ANSI output
  -n, --no-interaction  Do not ask any interactive question
      --no-warnings     Skip global warnings, show command output only
  -v|vv|vvv, --verbose  Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug

Available commands:
  check                                  check dependencies of the server environment
  help                                   Display help for a command
  list                                   List commands
  status                                 show some status information
  upgrade                                run upgrade routines after installation of a new release. The release has to be installed before.
  activity:send-mails                    Sends the activity notification mails
  app:disable                            disable an app
  app:enable                             enable an app
  app:getpath                            Get an absolute path to the app directory
  app:install                            install an app
  app:list                               List all available apps
  app:remove                             remove an app
  app:update                             update an app or all apps
  background:ajax                        Use ajax to run background jobs
  background:cron                        Use cron to run background jobs
  background:webcron                     Use webcron to run background jobs
  background-job:execute                 Execute a single background job manually
  background-job:list                    List background jobs
  broadcast:test                         test the SSE broadcaster
  circles:check                          Checking your configuration
  circles:maintenance                    Clean stuff, keeps the app running
  circles:manage:config                  edit config/type of a Circle
  circles:manage:create                  create a new circle
  circles:manage:destroy                 destroy a circle by its ID
  circles:manage:details                 get details about a circle by its ID
  circles:manage:edit                    edit displayName or description of a Circle
  circles:manage:join                    emulate a user joining a Circle
  circles:manage:leave                   simulate a user joining a Circle
  circles:manage:list                    listing current circles
  circles:manage:setting                 edit setting for a Circle
  circles:members:add                    Add a member to a Circle
  circles:members:details                get details about a member by its ID
  circles:members:level                  Change the level of a member from a Circle
  circles:members:list                   listing Members from a Circle
  circles:members:remove                 remove a member from a circle
  circles:members:search                 Change the level of a member from a Circle
  circles:memberships                    index and display memberships for local and federated users
  circles:remote                         remote features
  circles:shares:files                   listing shares files
  circles:sync                           Sync Circles and Members
  circles:test                           testing some features
  config:app:delete                      Delete an app config value
  config:app:get                         Get an app config value
  config:app:set                         Set an app config value
  config:import                          Import a list of configs
  config:list                            List all configs
  config:system:delete                   Delete a system config value
  config:system:get                      Get a system config value
  config:system:set                      Set a system config value
  dav:create-addressbook                 Create a dav addressbook
  dav:create-calendar                    Create a dav calendar
  dav:delete-calendar                    Delete a dav calendar
  dav:list-calendars                     List all calendars of a user
  dav:move-calendar                      Move a calendar from an user to another
  dav:remove-invalid-shares              Remove invalid dav shares
  dav:send-event-reminders               Sends event reminders
  dav:sync-birthday-calendar             Synchronizes the birthday calendar
  dav:sync-system-addressbook            Synchronizes users to the system addressbook
  db:add-missing-columns                 Add missing optional columns to the database tables
  db:add-missing-indices                 Add missing indices to the database tables
  db:add-missing-primary-keys            Add missing primary keys to the database tables
  db:convert-filecache-bigint            Convert the ID columns of the filecache to BigInt
  db:convert-mysql-charset               Convert charset of MySQL/MariaDB to use utf8mb4
  db:convert-type                        Convert the Nextcloud database to the newly configured one
  encryption:change-key-storage-root     Change key storage root
  encryption:decrypt-all                 Disable server-side encryption and decrypt all files
  encryption:disable                     Disable encryption
  encryption:enable                      Enable encryption
  encryption:encrypt-all                 Encrypt all files for all users
  encryption:list-modules                List all available encryption modules
  encryption:migrate-key-storage-format  Migrate the format of the keystorage to a newer format
  encryption:set-default-module          Set the encryption default module
  encryption:show-key-storage-root       Show current key storage root
  encryption:status                      Lists the current status of encryption
  federation:sync-addressbooks           Synchronizes addressbooks of all federated clouds
  files:cleanup                          cleanup filecache
  files:repair-tree                      Try and repair malformed filesystem tree structures
  files:scan                             rescan filesystem
  files:scan-app-data                    rescan the AppData folder
  files:transfer-ownership               All files and folders are moved to another user - outgoing shares and incoming user file shares (optionally) are moved as well.
  group:add                              Add a group
  group:adduser                          add a user to a group
  group:delete                           Remove a group
  group:info                             Show information about a group
  group:list                             list configured groups
  group:removeuser                       remove a user from a group
  integrity:check-app                    Check integrity of an app using a signature.
  integrity:check-core                   Check integrity of core code using a signature.
  integrity:sign-app                     Signs an app using a private key.
  integrity:sign-core                    Sign core using a private key.
  l10n:createjs                          Create javascript translation files for a given app
  log:file                               manipulate logging backend
  log:manage                             manage logging configuration
  log:tail                               Tail the nextcloud logfile
  log:watch                              Watch the nextcloud logfile
  maintenance:data-fingerprint           update the systems data-fingerprint after a backup is restored
  maintenance:mimetype:update-db         Update database mimetypes and update filecache
  maintenance:mimetype:update-js         Update mimetypelist.js
  maintenance:mode                       set maintenance mode
  maintenance:repair                     repair this installation
  maintenance:repair-share-owner         repair invalid share-owner entries in the database
  maintenance:theme:update               Apply custom theme changes
  maintenance:update:htaccess            Updates the .htaccess file
  notification:generate                  Generate a notification for the given user
  notification:test-push                 Generate a notification for the given user
  preview:repair                         distributes the existing previews into subfolders
  preview:reset-rendered-texts           Deletes all generated avatars and previews of text and md files
  recognize:classify                     Classify all files with the current settings in one go (will likely take a long time)
  recognize:cleanup-tags                 Delete all tags that have no files associated with them anymore
  recognize:download-models              Download the necessary machine learning models
  recognize:recrawl                      Go through all files again
  recognize:remove-legacy-tags           Remove tags set by old recognize versions
  recognize:reset-faces                  Remove all face detections from previously classified files
  recognize:reset-tags                   Remove all tags from previously classified files
  security:bruteforce:reset              resets bruteforce attemps for given IP address
  security:certificates                  list trusted certificates
  security:certificates:import           import trusted certificate in PEM format
  security:certificates:remove           remove trusted certificate
  serverinfo:update-storage-statistics   Triggers an update of the counts related to storages used in serverinfo
  sharing:cleanup-remote-storages        Cleanup shared storage entries that have no matching entry in the shares_external table
  sharing:expiration-notification        Notify share initiators when a share will expire the next day.
  support:report                         Generate a system report
  tag:add                                Add new tag
  tag:delete                             delete a tag
  tag:edit                               edit tag attributes
  tag:list                               list tags
  text:reset                             Reset a text document
  theming:config                         Set theming app config values
  trashbin:cleanup                       Remove deleted files
  trashbin:expire                        Expires the users trashbin
  trashbin:restore                       Restore all deleted files
  trashbin:size                          Configure the target trashbin size
  twofactorauth:cleanup                  Clean up the two-factor user-provider association of an uninstalled/removed provider
  twofactorauth:disable                  Disable two-factor authentication for a user
  twofactorauth:enable                   Enable two-factor authentication for a user
  twofactorauth:enforce                  Enabled/disable enforced two-factor authentication
  twofactorauth:state                    Get the two-factor authentication (2FA) state of a user
  update:check                           Check for server and app updates
  user:add                               adds a user
  user:add-app-password                  Add app password for the named user
  user:delete                            deletes the specified user
  user:disable                           disables the specified user
  user:enable                            enables the specified user
  user:info                              show user info
  user:lastseen                          shows when the user was logged in last time
  user:list                              list configured users
  user:report                            shows how many users have access
  user:resetpassword                     Resets the password of the named user
  user:setting                           Read and modify user settings
  versions:cleanup                       Delete versions
  versions:expire                        Expires the users file versions
  workflows:list                         Lists configured workflows
root@DietPi:~# ncc
-bash: ncc: command not found
root@DietPi:~# ncc list
-bash: ncc: command not found

did you reboot the system after installation of NC?

yes , now did it again and was working :wink:

Got some other Nextcloud / Nginx problem

Nextcloud gives me the warning

The “Strict-Transport-Security” HTTP header is not set to at least “15552000” seconds. For enhanced security, it is recommended to enable HSTS as described in the security tips :arrow_upper_right:.

So I enabled HSTS in dietpi-letsencrypt

But in the file /etc/nginx/sites-available/default


isn’t included as I expected from the Certbot?

The line should be?

add_header Strict-Transport-Security: max-age=31536000; includeSubdomains" always; # managed by Certbot

I tried to edit it manual but now Nextcloud / Nginx isn’t running at all !?

other question:

Can Certbot handle subdomains?

How to give in in the dietpi-letsencrypt?

* ?

Wildcards are not supported by default. You need to enter each domain, sub domain individually.

Tried to re-install Nextcloud
Didn’t work to get Nextcloud running again !?

Any idea how to solve this?

Regarding the Cert
Domain and subdomain separated with a comma and run the Certbot?,


just revert the changes you did on Nginx configuration. NC is not a separat app. It’s based on web server. You need to get Nginx back running.

Forgot to note the original line

Where to find it?

add_header Strict-Transport-Security "max-age=31536000" always; # managed by Certbot

Thank you, it’s working again!

Warning by Nextcloud

The “Strict-Transport-Security” HTTP header is not set to at least “15552000” seconds.
For enhanced security, it is recommended to enable HSTS as described in the security tips :arrow_upper_right:.

See HTTP Strict Transport Security (HSTS) and NGINX - NGINX

Setting the Strict Transport Security (STS) response header in NGINX and NGINX Plus is relatively straightforward:

nano /etc/nginx/sites-available/default

Search the original line
add_header Strict-Transport-Security "max-age=31536000" always; # managed by Certbot

and replace with
add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always; # managed by Certbot

Should the add 'includeSubDomains" ’ not automaticly be done by the Certbot or the installation of Nextcloud?

Do I need to run the Certbot multiple times after each other for the main domain and seperate for the wanted subdomain?
Or run it just once with the main domain and wanted subdomain seperated by , or ; ?

I get this error running the Certbot by DietPi-LetsEncrypt ‘

[FAILED] Setting was found multiple times 
The pattern $1 
server_name[[:blank:]]  was found multiple times in file $3                                                                                  /etc/nginx/sites-available/default 
7:        server_name;  
49:        server_name;
Either the pattern $1 needs to be more specific or the desired setting can appear multiple times by design and it cannot be predicted which instance to edit.  
Please retry with more specific parameter $1 or apply the setting manually:         


nano /etc/nginx/sites-available/default

# /etc/nginx/sites-available/default
server {

        root /var/www;
        index index.php index.html index.htm index.nginx-debian.html;


        include /etc/nginx/sites-dietpi/*.conf;

        location / {
                try_files $uri $uri/ =404;

        location ~ \.php(?:$|/) {
                include snippets/fastcgi-php.conf;
                fastcgi_pass php;

    listen [::]:443 ssl ipv6only=on; # managed by Certbot
    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot

    ssl_trusted_certificate /etc/letsencrypt/live/; # managed by Certbot
    ssl_stapling on; # managed by Certbot
    ssl_stapling_verify on; # managed by Certbot

    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always; # managed by Certbot


server {
    if ($host = {
        return 301 https://$host$request_uri;
    } # managed by Certbot

        listen 80 default_server;
        listen [::]:80 default_server;

    return 404; # managed by Certbot


server {
    if ($host = {
        return 301 https://$host$request_uri;
    } # managed by Certbot
    server_name; # managed by Certbot
    return 404; # managed by Certbot

    listen [::]:443 ssl; # managed by Certbot
    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot

    add_header Strict-Transport-Security "max-age=31536000" always; # managed by Certbot

    ssl_trusted_certificate /etc/letsencrypt/live/; # managed by Certbot
    ssl_stapling on; # managed by Certbot
    ssl_stapling_verify on; # managed by Certbot


server {
    if ($host = {
        return 301 https://$host$request_uri;
    } # managed by Certbot

    if ($host = {
        return 301 https://$host$request_uri;
    } # managed by Certbot

        listen 80 ;
        listen [::]:80 ;
    server_name; # managed by Certbot
    return 404; # managed by Certbot



Another question:

My personal info isn’t saved


Items like

  • Phone number
  • Website

Profile visibility of the items is set to Hide

I get the Authentocation required notification , fill in my password but after leaving the page it isn’t saved with the Checkmark and I don’t see a save button!?

  • Website solution > https:// needs to be included before www.

  • Phone number solution > Seems the config /var/www/nextcloud/config/config.php is missing:

‘default_phone_region’ => ‘optional’,

I have stumbled across a not-so-great solution, but it worked for me.
Simply open up some type of notepad, type the number there and copy and then paste it to the phone number field.
It actually worked for me, i would imagine others who are experiencing this issue.
For you more advanced technical wizards, i believe that the data entry times out for some reason, as i could only manually type a few digits before the Checkmark was to appear.

Security & setup warnings

  • You have not set or verified your email server configuration, yet. Please head over to the Basic settings in order to set them. Afterwards, use the “Send email” button below the form to verify your settings.

Having a Gmail address I havent been able to set the server settings
Have tried all ‘solutions’ I found regarding Nextcloud mail settings

A problem occurred while sending the email. Please revise your settings. (Error: Failed to authenticate on SMTP server with username “hemertje” using 1 possible authenticators. Authenticator LOGIN returned Expected response code 235 but got code “535”, with message "535-5.7.8 Username and Password not accepted. Learn more at 535 5.7.8 Check Gmail through other email platforms - Gmail Help 19-20020a170906329300b007bc8ef7416asm9433234ejw.25 - gsmtp ".)

Security & setup warnings

Branch 7.4 is End of Life and his Security Updates by januari 1 2023

How to update to PHP version 8.1 or 8.2?

Security & setup warnings

  • The PHP module “imagick” is not enabled although the theming app is. For favicon generation to work correctly, you need to install and enable this module.

Is this the proper way to install and enable this module?

cd /var/www/nextcloud 
sudo -u www-data php occ db:add-missing-indices

Security & setup warnings

  • The PHP modules “gmp” and/or “bcmath” are not enabled. If you use WebAuthn passwordless authentication, these modules are required.

If I’m correct these last two messages on my system can be ignored?

Imagick is deprecated?
I don’t use passwordless webauth, so I don’t need gmp / bcmath.

These modules could be ignored if not needed.

You need to wait on the release of Debian Bookworm Summer 2023 or go with a 3rd party installation of PHP.