Configuration Parameters — Nextcloud latest Administration Manual latest documentation

# Configuration Parameters

Nextcloud uses the `config/config.php` file to control server operations. `config/config.sample.php` lists all the configurable parameters within Nextcloud, along with example or default values. This document provides a more detailed reference. Most options are configurable on your Admin page, so it is usually not necessary to edit `config/config.php`.

Note

The installer creates a configuration containing the essential parameters. Only manually add configuration parameters to `config/config.php` if you need to use a special value for a parameter. Do not copy everything from `config/config.sample.php` . Only enter the parameters you wish to modify!

## Multiple config.php file

Nextcloud supports loading configuration parameters from multiple files. You can add arbitrary files ending with `.config.php` in the `config/` directory, for example you could place your email server configuration in `email.config.php`. This allows you to easily create and manage custom configurations, or to divide a large complex configuration file into a set of smaller files. These custom files are not overwritten by Nextcloud, and the values in these files take precedence over `config.php`.

## Default Parameters

These parameters are configured by the Nextcloud installer, and are required for your Nextcloud server to operate.

    'instanceid' => '',

This is a unique identifier for your Nextcloud installation, created automatically by the installer. This example is for documentation only, and you should never use it because it will not work. A valid `instanceid` is created when you install Nextcloud.

‘instanceid’ => ‘d3c944a9a’,

    'passwordsalt' => '',

The salt used to hash all passwords, auto-generated by the Nextcloud installer. (There are also per-user salts.) If you lose this salt you lose all your passwords. This example is for documentation only, and you should never use it.

    'trusted_domains' =>
       [
        'demo.example.org',
        'otherdomain.example.org',
        '10.111.112.113',
        '[2001:db8::1]'
      ],

Your list of trusted domains that users can log into. Specifying trusted domains prevents host header poisoning. Do not remove this, as it performs necessary security checks.

You can specify:

- the exact hostname of your host or virtual host, e.g. demo.example.org.

- the exact hostname with permitted port, e.g. demo.example.org:443. This disallows all other ports on this host

- use * as a wildcard, e.g. ubos-raspberry-pi*.local will allow ubos-raspberry-pi.local and ubos-raspberry-pi-2.local

- the IP address with or without permitted port, e.g. [2001:db8::1]:8080 Using TLS certificates where commonName=<IP address> is deprecated

    'datadirectory' => '/var/www/nextcloud/data',

Where user files are stored. The SQLite database is also stored here, when you use SQLite.

Default to `data/` in the Nextcloud directory.

    'version' => '',

The current version number of your Nextcloud installation. This is set up during installation and update, so you shouldn’t need to change it.

    'dbtype' => 'sqlite3',

Identifies the database used with this installation. See also config option `supportedDatabases`

Available:

  - sqlite3 (SQLite3)

  - mysql (MySQL/MariaDB)

  - pgsql (PostgreSQL)

Defaults to `sqlite3`

    'dbhost' => '',

Your host server name, for example `localhost`, `hostname`, `hostname.example.com`, or the IP address. To specify a port use `hostname:####`; to specify a Unix socket use `localhost:/path/to/socket`.

    'dbname' => 'nextcloud',

The name of the Nextcloud database, which is set during installation. You should not need to change this.

    'dbuser' => '',

The user that Nextcloud uses to write to the database. This must be unique across Nextcloud instances using the same SQL database. This is set up during installation, so you shouldn’t need to change it.

    'dbpassword' => '',

The password for the database user. This is set up during installation, so you shouldn’t need to change it.

    'dbtableprefix' => '',

Prefix for the Nextcloud tables in the database.

Default to `oc_`

    'installed' => false,

Indicates whether the Nextcloud instance was installed successfully; `true` indicates a successful installation, and `false` indicates an unsuccessful installation.

Defaults to `false`

## Default config.php Examples

When you use SQLite as your Nextcloud database, your `config.php` looks like this after installation. The SQLite database is stored in your Nextcloud `data/` directory. SQLite is a simple, lightweight embedded database that is good for testing and for simple installations, but for production Nextcloud systems you should use MySQL, MariaDB, or PosgreSQL.

    <?php
    $CONFIG = array (
      'instanceid' => 'occ6f7365735',
      'passwordsalt' => '2c5778476346786306303',
      'trusted_domains' =>
      array (
        0 => 'localhost',
        1 => 'studio',
      ),
      'datadirectory' => '/var/www/nextcloud/data',
      'dbtype' => 'sqlite3',
      'version' => '7.0.2.1',
      'installed' => true,
    );

This example is from a new Nextcloud installation using MariaDB:

    <?php
    $CONFIG = array (
      'instanceid' => 'oc8c0fd71e03',
      'passwordsalt' => '515a13302a6b3950a9d0fdb970191a',
      'trusted_domains' =>
      array (
        0 => 'localhost',
        1 => 'studio',
        2 => '192.168.10.155'
      ),
      'datadirectory' => '/var/www/nextcloud/data',
      'dbtype' => 'mysql',
       'version' => '7.0.2.1',
      'dbname' => 'nextcloud',
      'dbhost' => 'localhost',
      'dbtableprefix' => 'oc_',
      'dbuser' => 'oc_carla',
      'dbpassword' => '67336bcdf7630dd80b2b81a413d07',
      'installed' => true,
    );

## User Experience

These optional parameters control some aspects of the user interface. Default values, where present, are shown.

    'default_language' => 'en',

This sets the default language on your Nextcloud server, using ISO_639-1 language codes such as `en` for English, `de` for German, and `fr` for French. It overrides automatic language detection on public pages like login or shared items. User’s language preferences configured under “personal -> language” override this setting after they have logged in. Nextcloud has two distinguished language codes for German, ‘de’ and ‘de_DE’. ‘de’ is used for informal German and ‘de_DE’ for formal German. By setting this value to ‘de_DE’ you can enforce the formal version of German unless the user has chosen something different explicitly.

Defaults to `en`

    'force_language' => 'en',

With this setting a language can be forced for all users. If a language is forced, the users are also unable to change their language in the personal settings. If users shall be unable to change their language, but users have different languages, this value can be set to `true` instead of a language code.

Defaults to `false`

    'default_locale' => 'en_US',

This sets the default locale on your Nextcloud server, using ISO_639 language codes such as `en` for English, `de` for German, and `fr` for French, and ISO-3166 country codes such as `GB`, `US`, `CA`, as defined in RFC 5646. It overrides automatic locale detection on public pages like login or shared items. User’s locale preferences configured under “personal -> locale” override this setting after they have logged in.

Defaults to `en`

    'force_locale' => 'en_US',

With this setting a locale can be forced for all users. If a locale is forced, the users are also unable to change their locale in the personal settings. If users shall be unable to change their locale, but users have different languages, this value can be set to `true` instead of a locale code.

Defaults to `false`

    'defaultapp' => 'files',

Set the default app to open on login. Use the app names as they appear in the URL after clicking them in the Apps menu, such as documents, calendar, and gallery. You can use a comma-separated list of app names, so if the first app is not enabled for a user then Nextcloud will try the second one, and so on. If no enabled apps are found it defaults to the Files app.

Defaults to `files`

    'knowledgebaseenabled' => true,

`true` enables the Help menu item in the user menu (top right of the Nextcloud Web interface). `false` removes the Help item.

    'allow_user_to_change_display_name' => true,

`true` allows users to change their display names (on their Personal pages), and `false` prevents them from changing their display names.

    'remember_login_cookie_lifetime' => 60*60*24*15,

Lifetime of the remember login cookie. This should be larger than the session_lifetime. If it is set to 0 remember me is disabled.

Defaults to `60*60*24*15` seconds (15 days)

    'session_lifetime' => 60 * 60 * 24,

The lifetime of a session after inactivity.

Defaults to `60*60*24` seconds (24 hours)

    'session_keepalive' => true,

Enable or disable session keep-alive when a user is logged in to the Web UI.

Enabling this sends a “heartbeat” to the server to keep it from timing out.

Defaults to `true`

    'auto_logout' => false,

Enable or disable the automatic logout after session_lifetime, even if session keepalive is enabled. This will make sure that an inactive browser will be logged out even if requests to the server might extend the session lifetime.

Defaults to `false`

    'token_auth_enforced' => false,

Enforce token authentication for clients, which blocks requests using the user password for enhanced security. Users need to generate tokens in personal settings which can be used as passwords on their clients.

Defaults to `false`

    'auth.bruteforce.protection.enabled' => true,

Whether the bruteforce protection shipped with Nextcloud should be enabled or not.

Disabling this is discouraged for security reasons.

Defaults to `true`

    'auth.webauthn.enabled' => true,

By default WebAuthn is available but it can be explicitly disabled by admins

    'skeletondirectory' => '/path/to/nextcloud/core/skeleton',

The directory where the skeleton files are located. These files will be copied to the data directory of new users. Leave empty to not copy any skeleton files.

`{lang}` can be used as a placeholder for the language of the user. If the directory does not exist, it falls back to non dialect (from `de_DE` to `de`). If that does not exist either, it falls back to `default`

Defaults to `core/skeleton` in the Nextcloud directory.

    'lost_password_link' => 'https://example.org/link/to/password/reset',

If your user backend does not allow password resets (e.g. when it’s a read-only user backend like LDAP), you can specify a custom link, where the user is redirected to, when clicking the “reset password” link after a failed login-attempt.

In case you do not want to provide any link, replace the url with ‘disabled’

## Mail Parameters

These configure the email settings for Nextcloud notifications and password resets.

    'mail_domain' => 'example.com',

The return address that you want to appear on emails sent by the Nextcloud server, for example `nc-admin@example.com`, substituting your own domain, of course.

    'mail_from_address' => 'nextcloud',

FROM address that overrides the built-in `sharing-noreply` and `lostpassword-noreply` FROM addresses.

Defaults to different from addresses depending on the feature.

    'mail_smtpdebug' => false,

Enable SMTP class debugging.

Defaults to `false`

    'mail_smtpmode' => 'smtp',

Which mode to use for sending mail: `sendmail`, `smtp` or `qmail`.

If you are using local or remote SMTP, set this to `smtp`.

For the `sendmail` option you need an installed and working email system on the server, with `/usr/sbin/sendmail` installed on your Unix system.

For `qmail` the binary is /var/qmail/bin/sendmail, and it must be installed on your Unix system.

Defaults to `smtp`

    'mail_smtphost' => '127.0.0.1',

This depends on `mail_smtpmode`. Specify the IP address of your mail server host. This may contain multiple hosts separated by a semi-colon. If you need to specify the port number append it to the IP address separated by a colon, like this: `127.0.0.1:24`.

Defaults to `127.0.0.1`

    'mail_smtpport' => 25,

This depends on `mail_smtpmode`. Specify the port for sending mail.

Defaults to `25`

    'mail_smtptimeout' => 10,

This depends on `mail_smtpmode`. This sets the SMTP server timeout, in seconds. You may need to increase this if you are running an anti-malware or spam scanner.

Defaults to `10` seconds

    'mail_smtpsecure' => '',

This depends on `mail_smtpmode`. Specify when you are using `ssl` for SSL/TLS or `tls` for STARTTLS, or leave empty for no encryption.

Defaults to `''` (empty string)

    'mail_smtpauth' => false,

This depends on `mail_smtpmode`. Change this to `true` if your mail server requires authentication.

Defaults to `false`

    'mail_smtpauthtype' => 'LOGIN',

This depends on `mail_smtpmode`. If SMTP authentication is required, choose the authentication type as `LOGIN` or `PLAIN`.

Defaults to `LOGIN`

    'mail_smtpname' => '',

This depends on `mail_smtpauth`. Specify the username for authenticating to the SMTP server.

Defaults to `''` (empty string)

    'mail_smtppassword' => '',

This depends on `mail_smtpauth`. Specify the password for authenticating to the SMTP server.

Default to `''` (empty string)

    'mail_template_class' => '\OC\Mail\EMailTemplate',

Replaces the default mail template layout. This can be utilized if the options to modify the mail texts with the theming app is not enough.

The class must extend `\OC\Mail\EMailTemplate`

    'mail_send_plaintext_only' => false,

Email will be send by default with an HTML and a plain text body. This option allows to only send plain text emails.

    'mail_smtpstreamoptions' => [],

This depends on `mail_smtpmode`. Array of additional streams options that will be passed to underlying Swift mailer implementation.

Defaults to an empty array.

    'mail_sendmailmode' => 'smtp',

Which mode is used for sendmail/qmail: `smtp` or `pipe`.

For `smtp` the sendmail binary is started with the parameter `-bs`:

  - Use the SMTP protocol on standard input and output.

For `pipe` the binary is started with the parameters `-t`:

  - Read message from STDIN and extract recipients.

Defaults to `smtp`

## Proxy Configurations

    'overwritehost' => '',

The automatic hostname detection of Nextcloud can fail in certain reverse proxy and CLI/cron situations. This option allows you to manually override the automatic detection; for example `www.example.com`, or specify the port `www.example.com:8080`.

    'overwriteprotocol' => '',

When generating URLs, Nextcloud attempts to detect whether the server is accessed via `https` or `http`. However, if Nextcloud is behind a proxy and the proxy handles the `https` calls, Nextcloud would not know that `ssl` is in use, which would result in incorrect URLs being generated.

Valid values are `http` and `https`.

    'overwritewebroot' => '',

Nextcloud attempts to detect the webroot for generating URLs automatically.

For example, if `www.example.com/nextcloud` is the URL pointing to the Nextcloud instance, the webroot is `/nextcloud`. When proxies are in use, it may be difficult for Nextcloud to detect this parameter, resulting in invalid URLs.

    'overwritecondaddr' => '',

This option allows you to define a manual override condition as a regular expression for the remote IP address. For example, defining a range of IP addresses starting with `10.0.0.` and ending with 1 to 3: `^10\.0\.0\.[1-3]$`

Defaults to `''` (empty string)

    'overwrite.cli.url' => '',

Use this configuration parameter to specify the base URL for any URLs which are generated within Nextcloud using any kind of command line tools (cron or occ). The value should contain the full base URL: `https://www.example.com/nextcloud`

Defaults to `''` (empty string)

    'htaccess.RewriteBase' => '/',

To have clean URLs without /index.php this parameter needs to be configured.

This parameter will be written as “RewriteBase” on update and installation of Nextcloud to your .htaccess file. While this value is often simply the URL path of the Nextcloud installation it cannot be set automatically properly in every scenario and needs thus some manual configuration.

In a standard Apache setup this usually equals the folder that Nextcloud is accessible at. So if Nextcloud is accessible via “https://mycloud.org/nextcloud” the correct value would most likely be “/nextcloud”. If Nextcloud is running under “https://mycloud.org/” then it would be “/”.

Note that the above rule is not valid in every case, as there are some rare setup cases where this may not apply. However, to avoid any update problems this configuration value is explicitly opt-in.

After setting this value run occ maintenance:update:htaccess. Now, when the following conditions are met Nextcloud URLs won’t contain index.php:

- mod_rewrite is installed

- mod_env is installed

Defaults to `''` (empty string)

    'htaccess.IgnoreFrontController' => false,

For server setups, that don’t have mod_env enabled or restricted (e.g. suEXEC) this parameter has to be set to true and will assume mod_rewrite.

Please check, if mod_rewrite is active and functional before setting this parameter and you updated your .htaccess with occ maintenance:update:htaccess. Otherwise your nextcloud installation might not be reachable anymore. For example, try accessing resources by leaving out index.php in the URL.

    'proxy' => '',

The URL of your proxy server, for example `proxy.example.com:8081`.

Note: Guzzle (the http library used by Nextcloud) is reading the environment variables HTTP_PROXY (only for cli request), HTTPS_PROXY, and NO_PROXY by default.

If you configure proxy with Nextcloud any default configuration by Guzzle is overwritten. Make sure to set `proxyexclude` accordingly if necessary.

Defaults to `''` (empty string)

    'proxyuserpwd' => '',

The optional authentication for the proxy to use to connect to the internet.

The format is: `username:password`.

Defaults to `''` (empty string)

    'proxyexclude' => [],

List of host names that should not be proxied to.

For example: `['.mit.edu', 'foo.com']`.

Hint: Use something like `explode(',', getenv('NO_PROXY'))` to sync this value with the global NO_PROXY option.

Defaults to empty array.

    'allow_local_remote_servers' => true,

Allow remote servers with local addresses e.g. in federated shares, webcal services and more

Defaults to false

## Deleted Items (trash bin)

These parameters control the Deleted files app.

    'trashbin_retention_obligation' => 'auto',

If the trash bin app is enabled (default), this setting defines the policy for when files and folders in the trash bin will be permanently deleted.

The app allows for two settings, a minimum time for trash bin retention, and a maximum time for trash bin retention. Minimum time is the number of days a file will be kept, after which it may be deleted. Maximum time is the number of days at which it is guaranteed to be deleted. Both minimum and maximum times can be set together to explicitly define file and folder deletion. For migration purposes, this setting is installed initially set to “auto”, which is equivalent to the default setting in Nextcloud.

Available values:

- `auto`

    default setting. keeps files and folders in the trash bin for 30 days and automatically deletes anytime after that if space is needed (note: files may not be deleted if space is not needed).

- `D, auto`

    keeps files and folders in the trash bin for D+ days, delete anytime if space needed (note: files may not be deleted if space is not needed)

- `auto, D`

    delete all files in the trash bin that are older than D days automatically, delete other files anytime if space needed

- `D1, D2`

    keep files and folders in the trash bin for at least D1 days and delete when exceeds D2 days (note: files will not be deleted automatically if space is needed)

- `disabled`

    trash bin auto clean disabled, files and folders will be kept forever

Defaults to `auto`

## File versions

These parameters control the Versions app.

    'versions_retention_obligation' => 'auto',

If the versions app is enabled (default), this setting defines the policy for when versions will be permanently deleted.

The app allows for two settings, a minimum time for version retention, and a maximum time for version retention. Minimum time is the number of days a version will be kept, after which it may be deleted. Maximum time is the number of days at which it is guaranteed to be deleted. Both minimum and maximum times can be set together to explicitly define version deletion. For migration purposes, this setting is installed initially set to “auto”, which is equivalent to the default setting in Nextcloud.

Available values:

- `auto`

    default setting. Automatically expire versions according to expire rules. Please refer to Controlling file versions and aging for more information.

- `D, auto`

    keep versions at least for D days, apply expire rules to all versions that are older than D days

- `auto, D`

    delete all versions that are older than D days automatically, delete other versions according to expire rules

- `D1, D2`

    keep versions for at least D1 days and delete when exceeds D2 days

- `disabled`

    versions auto clean disabled, versions will be kept forever

Defaults to `auto`

## Nextcloud Verifications

Nextcloud performs several verification checks. There are two options, `true` and `false`.

    'appcodechecker' => true,

Checks an app before install whether it uses private APIs instead of the proper public APIs. If this is set to true it will only allow to install or enable apps that pass this check.

Defaults to `false`

    'updatechecker' => true,

Check if Nextcloud is up-to-date and shows a notification if a new version is available.

Defaults to `true`

    'updater.server.url' => 'https://updates.nextcloud.com/updater_server/',

URL that Nextcloud should use to look for updates

Defaults to `https://updates.nextcloud.com/updater_server/`

    'updater.release.channel' => 'stable',

The channel that Nextcloud should use to look for updates

Supported values:

  - `daily`

  - `beta`

  - `stable`

    'has_internet_connection' => true,

Is Nextcloud connected to the Internet or running in a closed network?

Defaults to `true`

    'connectivity_check_domains' => [
            'www.nextcloud.com',
            'www.startpage.com',
            'www.eff.org',
            'www.edri.org'
    ],

Which domains to request to determine the availability of an Internet connection. If none of these hosts are reachable, the administration panel will show a warning. Set to an empty list to not do any such checks (warning will still be shown).

Defaults to the following domains:

> - www.nextcloud.com

> - www.startpage.com

> - www.eff.org

> - www.edri.org

    'check_for_working_wellknown_setup' => true,

Allows Nextcloud to verify a working .well-known URL redirects. This is done by attempting to make a request from JS to https://your-domain.com/.well-known/caldav/

Defaults to `true`

    'check_for_working_htaccess' => true,

This is a crucial security check on Apache servers that should always be set to `true`. This verifies that the `.htaccess` file is writable and works.

If it is not, then any options controlled by `.htaccess`, such as large file uploads, will not work. It also runs checks on the `data/` directory, which verifies that it can’t be accessed directly through the Web server.

Defaults to `true`

    'check_data_directory_permissions' => true,

In rare setups (e.g. on Openshift or docker on windows) the permissions check might block the installation while the underlying system offers no means to “correct” the permissions. In this case, set the value to false.

In regular cases, if issues with permissions are encountered they should be adjusted accordingly. Changing the flag is discouraged.

Defaults to `true`

    'config_is_read_only' => false,

In certain environments it is desired to have a read-only configuration file.

When this switch is set to `true` Nextcloud will not verify whether the configuration is writable. However, it will not be possible to configure all options via the Web interface. Furthermore, when updating Nextcloud it is required to make the configuration file writable again for the update process.

Defaults to `false`

## Logging

    'log_type' => 'file',

This parameter determines where the Nextcloud logs are sent.

`file`: the logs are written to file `nextcloud.log` in the default Nextcloud data directory. The log file can be changed with parameter `logfile`. `syslog`: the logs are sent to the system log. This requires a syslog daemon to be active. `errorlog`: the logs are sent to the PHP `error_log` function. `systemd`: the logs are sent to the Systemd journal. This requires a system that runs Systemd and the Systemd journal. The PHP extension `systemd` must be installed and active.

Defaults to `file`

    'logfile' => '/var/log/nextcloud.log',

Name of the file to which the Nextcloud logs are written if parameter `log_type` is set to `file`.

Defaults to `[datadirectory]/nextcloud.log`

    'logfilemode' => 0640,

Log file mode for the Nextcloud loggin type in octal notation.

Defaults to 0640 (writeable by user, readable by group).

    'loglevel' => 2,

Loglevel to start logging at. Valid values are: 0 = Debug, 1 = Info, 2 = Warning, 3 = Error, and 4 = Fatal. The default value is Warning.

Defaults to `2`

    'syslog_tag' => 'Nextcloud',

If you maintain different instances and aggregate the logs, you may want to distinguish between them. `syslog_tag` can be set per instance with a unique id. Only available if `log_type` is set to `syslog` or `systemd`.

The default value is `Nextcloud`.

    'log.condition' => [
            'shared_secret' => '57b58edb6637fe3059b3595cf9c41b9',
            'users' => ['sample-user'],
            'apps' => ['files'],
    ],

Log condition for log level increase based on conditions. Once one of these conditions is met, the required log level is set to debug. This allows to debug specific requests, users or apps

Supported conditions:
  - `shared_secret`: if a request parameter with the name log_secret is set to

      this value the condition is met

  - `users`: if the current request is done by one of the specified users,

      this condition is met

  - `apps`: if the log message is invoked by one of the specified apps,

      this condition is met

Defaults to an empty array.

    'logdateformat' => 'F d, Y H:i:s',

This uses PHP.date formatting; see https://php.net/manual/en/function.date.php

Defaults to ISO 8601 `2005-08-15T15:52:01+00:00` - see DateTime::ATOM (https://secure.php.net/manual/en/class.datetime.php#datetime.constants.atom)

    'logtimezone' => 'Europe/Berlin',

The timezone for logfiles. You may change this; see https://php.net/manual/en/timezones.php

Defaults to `UTC`

    'log_query' => false,

Append all database queries and parameters to the log file. Use this only for debugging, as your logfile will become huge.

    'log_rotate_size' => 100 * 1024 * 1024,

Enables log rotation and limits the total size of logfiles. Set it to 0 for no rotation. Specify a size in bytes, for example 104857600 (100 megabytes = 100 * 1024 * 1024 bytes). A new logfile is created with a new name when the old logfile reaches your limit. If a rotated log file is already present, it will be overwritten.

Defaults to 100 MB

## Alternate Code Locations

Some of the Nextcloud code may be stored in alternate locations.

    'customclient_desktop' =>
            'https://nextcloud.com/install/#install-clients',
    'customclient_android' =>
            'https://play.google.com/store/apps/details?id=com.nextcloud.client',
    'customclient_ios' =>
            'https://itunes.apple.com/us/app/nextcloud/id1125420102?mt=8',
    'customclient_ios_appid' =>
                    '1125420102',

This section is for configuring the download links for Nextcloud clients, as seen in the first-run wizard and on Personal pages.

Defaults to:

  - Desktop client: `https://nextcloud.com/install/#install-clients`

  - Android client: `https://play.google.com/store/apps/details?id=com.nextcloud.client`

  - iOS client: `https://itunes.apple.com/us/app/nextcloud/id1125420102?mt=8`

  - iOS client app id: `1125420102`

## Apps

Options for the Apps folder, Apps store, and App code checker.

    'appstoreenabled' => true,

When enabled, admins may install apps from the Nextcloud app store.

Defaults to `true`

    'appstoreurl' => 'https://apps.nextcloud.com/api/v1',

Enables the installation of apps from a self hosted apps store.

Requires that at least one of the configured apps directories is writeable.

Defaults to `https://apps.nextcloud.com/api/v1`

    'apps_paths' => [
            [
                    'path'=> '/var/www/nextcloud/apps',
                    'url' => '/apps',
                    'writable' => true,
            ],
    ],

Use the `apps_paths` parameter to set the location of the Apps directory, which should be scanned for available apps, and where user-specific apps should be installed from the Apps store. The `path` defines the absolute file system path to the app folder. The key `url` defines the HTTP Web path to that folder, starting from the Nextcloud webroot. The key `writable` indicates if a Web server can write files to that folder.

    'appcodechecker' => true,

Checks an app before install whether it uses private APIs instead of the proper public APIs. If this is set to true it will only allow to install or enable apps that pass this check.

Defaults to `false`

## Previews

Nextcloud supports previews of image files, the covers of MP3 files, and text files. These options control enabling and disabling previews, and thumbnail size.

    'enable_previews' => true,

By default, Nextcloud can generate previews for the following filetypes:

- Image files

- Covers of MP3 files

- Text documents

Valid values are `true`, to enable previews, or `false`, to disable previews

Defaults to `true`

    'preview_max_x' => 4096,

The maximum width, in pixels, of a preview. A value of `null` means there is no limit.

Defaults to `4096`

    'preview_max_y' => 4096,

The maximum height, in pixels, of a preview. A value of `null` means there is no limit.

Defaults to `4096`

    'preview_max_filesize_image' => 50,

max file size for generating image previews with imagegd (default behavior) If the image is bigger, it’ll try other preview generators, but will most likely show the default mimetype icon. Set to -1 for no limit.

Defaults to `50` megabytes

    'preview_libreoffice_path' => '/usr/bin/libreoffice',

custom path for LibreOffice/OpenOffice binary

Defaults to `''` (empty string)

    'preview_office_cl_parameters' =>
            ' --headless --nologo --nofirststartwizard --invisible --norestore '.
            '--convert-to png --outdir ',

Use this if LibreOffice/OpenOffice requires additional arguments.

Defaults to `''` (empty string)

    'enabledPreviewProviders' => [
            'OC\Preview\PNG',
            'OC\Preview\JPEG',
            'OC\Preview\GIF',
            'OC\Preview\HEIC',
            'OC\Preview\BMP',
            'OC\Preview\XBitmap',
            'OC\Preview\MP3',
            'OC\Preview\TXT',
            'OC\Preview\MarkDown',
            'OC\Preview\OpenDocument',
            'OC\Preview\Krita',
    ],

Only register providers that have been explicitly enabled

The following providers are disabled by default due to performance or privacy concerns:

> - OC\Preview\Illustrator

> - OC\Preview\Movie

> - OC\Preview\MSOffice2003

> - OC\Preview\MSOffice2007

> - OC\Preview\MSOfficeDoc

> - OC\Preview\PDF

> - OC\Preview\Photoshop

> - OC\Preview\Postscript

> - OC\Preview\StarOffice

> - OC\Preview\SVG

> - OC\Preview\TIFF

> - OC\Preview\Font

Defaults to the following providers:

> - OC\Preview\BMP

> - OC\Preview\GIF

> - OC\Preview\HEIC

> - OC\Preview\JPEG

> - OC\Preview\MarkDown

> - OC\Preview\MP3

> - OC\Preview\PNG

> - OC\Preview\TXT

> - OC\Preview\XBitmap

> - OC\Preview\OpenDocument

> - OC\Preview\Krita

## LDAP

Global settings used by LDAP User and Group Backend

    'ldapUserCleanupInterval' => 51,

defines the interval in minutes for the background job that checks user existence and marks them as ready to be cleaned up. The number is always minutes. Setting it to 0 disables the feature.

See command line (occ) methods `ldap:show-remnants` and `user:delete`

Defaults to `51` minutes

    'sort_groups_by_name' => false,

Sort groups in the user settings by name instead of the user count

By enabling this the user count beside the group name is disabled as well.

## Comments

Global settings for the Comments infrastructure

    'comments.managerFactory' => '\OC\Comments\ManagerFactory',

Replaces the default Comments Manager Factory. This can be utilized if an own or 3rdParty CommentsManager should be used that – for instance – uses the filesystem instead of the database to keep the comments.

Defaults to `\OC\Comments\ManagerFactory`

    'systemtags.managerFactory' => '\OC\SystemTag\ManagerFactory',

Replaces the default System Tags Manager Factory. This can be utilized if an own or 3rdParty SystemTagsManager should be used that – for instance – uses the filesystem instead of the database to keep the tags.

Defaults to `\OC\SystemTag\ManagerFactory`

## Maintenance

These options are for halting user activity when you are performing server maintenance.

    'maintenance' => false,

Enable maintenance mode to disable Nextcloud

If you want to prevent users from logging in to Nextcloud before you start doing some maintenance work, you need to set the value of the maintenance parameter to true. Please keep in mind that users who are already logged-in are kicked out of Nextcloud instantly.

Defaults to `false`

## SSL

    'openssl' => [
            'config' => '/absolute/location/of/openssl.cnf',
    ],

Extra SSL options to be used for configuration.

Defaults to an empty array.

## Memory caching backend configuration

Available cache backends:

- `\OC\Memcache\APCu` APC user backend

- `\OC\Memcache\ArrayCache` In-memory array-based backend (not recommended)

- `\OC\Memcache\Memcached` Memcached backend

- `\OC\Memcache\Redis` Redis backend

Advice on choosing between the various backends:

- APCu should be easiest to install. Almost all distributions have packages. Use this for single user environment for all caches.

- Use Redis or Memcached for distributed environments. For the local cache (you can configure two) take APCu.

    'memcache.local' => '\OC\Memcache\APCu',

Memory caching backend for locally stored data

- Used for host-specific data, e.g. file paths

Defaults to `none`

    'memcache.distributed' => '\OC\Memcache\Memcached',

Memory caching backend for distributed data

- Used for installation-specific data, e.g. database caching

- If unset, defaults to the value of memcache.local

Defaults to `none`

    'redis' => [
            'host' => 'localhost', // can also be a unix domain socket: '/tmp/redis.sock'
            'port' => 6379,
            'timeout' => 0.0,
            'password' => '', // Optional, if not defined no password will be used.
            'dbindex' => 0, // Optional, if undefined SELECT will not run and will use Redis Server's default DB Index.
    ],

Connection details for redis to use for memory caching in a single server configuration.

For enhanced security it is recommended to configure Redis to require a password. See http://redis.io/topics/security for more information.

    'redis.cluster' => [
            'seeds' => [ // provide some/all of the cluster servers to bootstrap discovery, port required
                    'localhost:7000',
                    'localhost:7001',
            ],
            'timeout' => 0.0,
            'read_timeout' => 0.0,
            'failover_mode' => \RedisCluster::FAILOVER_ERROR,
            'password' => '', // Optional, if not defined no password will be used.
    ],

Connection details for a Redis Cluster

Only for use with Redis Clustering, for Sentinel-based setups use the single server configuration above, and perform HA on the hostname.

Redis Cluster support requires the php module phpredis in version 3.0.0 or higher.

Available failover modes:

  - \RedisCluster::FAILOVER_NONE - only send commands to master nodes (default)

  - \RedisCluster::FAILOVER_ERROR - failover to slaves for read commands if master is unavailable (recommended)

  - \RedisCluster::FAILOVER_DISTRIBUTE - randomly distribute read commands across master and slaves

WARNING: FAILOVER_DISTRIBUTE is a not recommended setting and we strongly suggest to not use it if you use Redis for file locking. Due to the way Redis is synchronized it could happen, that the read for an existing lock is scheduled to a slave that is not fully synchronized with the connected master which then causes a FileLocked exception.

See https://redis.io/topics/cluster-spec for details about the Redis cluster

Authentication works with phpredis version 4.2.1+. See https://github.com/phpredis/phpredis/commit/c5994f2a42b8a348af92d3acb4edff1328ad8ce1

    'memcached_servers' => [
            // hostname, port and optional weight. Also see:
            // http://www.php.net/manual/en/memcached.addservers.php
            // http://www.php.net/manual/en/memcached.addserver.php
            ['localhost', 11211],
            //array('other.host.local', 11211),
    ],

Server details for one or more memcached servers to use for memory caching.

    'memcached_options' => [
            // Set timeouts to 50ms
            \Memcached::OPT_CONNECT_TIMEOUT => 50,
            \Memcached::OPT_RETRY_TIMEOUT =>   50,
            \Memcached::OPT_SEND_TIMEOUT =>    50,
            \Memcached::OPT_RECV_TIMEOUT =>    50,
            \Memcached::OPT_POLL_TIMEOUT =>    50,

            // Enable compression
            \Memcached::OPT_COMPRESSION =>          true,

            // Turn on consistent hashing
            \Memcached::OPT_LIBKETAMA_COMPATIBLE => true,

            // Enable Binary Protocol
            \Memcached::OPT_BINARY_PROTOCOL =>      true,

            // Binary serializer vill be enabled if the igbinary PECL module is available
            //\Memcached::OPT_SERIALIZER => \Memcached::SERIALIZER_IGBINARY,
    ],

Connection options for memcached

    'cache_path' => '',

Location of the cache folder, defaults to `data/$user/cache` where `$user` is the current user. When specified, the format will change to `$cache_path/$user` where `$cache_path` is the configured cache directory and `$user` is the user.

Defaults to `''` (empty string)

    'cache_chunk_gc_ttl' => 60*60*24,

TTL of chunks located in the cache folder before they’re removed by garbage collection (in seconds). Increase this value if users have issues uploading very large files via the Nextcloud Client as upload isn’t completed within one day.

Defaults to `60*60*24` (1 day)

## Using Object Store with Nextcloud

    'objectstore' => [
            'class' => 'OC\\Files\\ObjectStore\\Swift',
            'arguments' => [
                    // trystack will use your facebook id as the user name
                    'username' => 'facebook100000123456789',
                    // in the trystack dashboard go to user -> settings -> API Password to
                    // generate a password
                    'password' => 'Secr3tPaSSWoRdt7',
                    // must already exist in the objectstore, name can be different
                    'container' => 'nextcloud',
                    // prefix to prepend to the fileid, default is 'oid:urn:'
                    'objectPrefix' => 'oid:urn:',
                    // create the container if it does not exist. default is false
                    'autocreate' => true,
                    // required, dev-/trystack defaults to 'RegionOne'
                    'region' => 'RegionOne',
                    // The Identity / Keystone endpoint
                    'url' => 'http://8.21.28.222:5000/v2.0',
                    // required on dev-/trystack
                    'tenantName' => 'facebook100000123456789',
                    // dev-/trystack uses swift by default, the lib defaults to 'cloudFiles'
                    // if omitted
                    'serviceName' => 'swift',
                    // The Interface / url Type, optional
                    'urlType' => 'internal'
            ],
    ],

This example shows how to configure Nextcloud to store all files in a swift object storage.

It is important to note that Nextcloud in object store mode will expect exclusive access to the object store container because it only stores the binary data for each file. The metadata is currently kept in the local database for performance reasons.

WARNING: The current implementation is incompatible with any app that uses direct file IO and circumvents our virtual filesystem. That includes Encryption and Gallery. Gallery will store thumbnails directly in the filesystem and encryption will cause severe overhead because key files need to be fetched in addition to any requested file.

One way to test is applying for a trystack account at http://trystack.org/

    'objectstore' => [
            'class' => 'OC\\Files\\ObjectStore\\Swift',
            'arguments' => [
                    'autocreate' => true,
                    'user' => [
                            'name' => 'swift',
                            'password' => 'swift',
                            'domain' => [
                                    'name' => 'default',
                            ],
                    ],
                    'scope' => [
                            'project' => [
                                    'name' => 'service',
                                    'domain' => [
                                            'name' => 'default',
                                    ],
                            ],
                    ],
                    'tenantName' => 'service',
                    'serviceName' => 'swift',
                    'region' => 'regionOne',
                    'url' => 'http://yourswifthost:5000/v3',
                    'bucket' => 'nextcloud',
            ],
    ],

To use swift V3

    'objectstore.multibucket.preview-distribution' => false,

If this is set to true and a multibucket object store is configured then newly created previews are put into 256 dedicated buckets.

Those buckets are named like the mulibucket version but with the postfix `-preview-NUMBER` where NUMBER is between 0 and 255.

Keep in mind that only previews of files are put in there that don’t have some already. Otherwise the old bucket will be used.

To migrate existing previews to this new multibucket distribution of previews use the occ command `preview:repair`. For now this will only migrate previews that were generated before Nextcloud 19 in the flat `appdata_INSTANCEID/previews/FILEID` folder structure.

## Sharing

Global settings for Sharing

    'sharing.managerFactory' => '\OC\Share20\ProviderFactory',

Replaces the default Share Provider Factory. This can be utilized if own or 3rdParty Share Providers are used that – for instance – use the filesystem instead of the database to keep the share information.

Defaults to `\OC\Share20\ProviderFactory`

    'sharing.maxAutocompleteResults' => 0,

Define max number of results returned by the user search for auto-completion Default is unlimited (value set to 0).

    'sharing.minSearchStringLength' => 0,

Define the minimum length of the search string before we start auto-completion Default is no limit (value set to 0)

    'sharing.enable_share_accept' => false,

Set to true to enable that internal shares need to be accepted by the users by default.

Users can change this for their account in their personal sharing settings

    'sharing.force_share_accept' => false,

Set to true to enforce that internal shares need to be accepted

    'sharing.enable_share_mail' => true,

Set to false to stop sending a mail when users receive a share

## All other configuration options

    'dbdriveroptions' => [
            PDO::MYSQL_ATTR_SSL_CA => '/file/path/to/ca_cert.pem',
            PDO::MYSQL_ATTR_INIT_COMMAND => 'SET wait_timeout = 28800'
    ],

Additional driver options for the database connection, eg. to enable SSL encryption in MySQL or specify a custom wait timeout on a cheap hoster.

    'sqlite.journal_mode' => 'DELETE',

sqlite3 journal mode can be specified using this configuration parameter - can be ‘WAL’ or ‘DELETE’ see for more details https://www.sqlite.org/wal.html

    'mysql.utf8mb4' => false,

During setup, if requirements are met (see below), this setting is set to true and MySQL can handle 4 byte characters instead of 3 byte characters.

If you want to convert an existing 3-byte setup into a 4-byte setup please set the parameters in MySQL as mentioned below and run the migration command: ./occ db:convert-mysql-charset The config setting will be set automatically after a successful run.

Consult the documentation for more details.

MySQL requires a special setup for longer indexes (> 767 bytes) which are needed:

[mysqld] innodb_large_prefix=ON innodb_file_format=Barracuda innodb_file_per_table=ON

Tables will be created with

  - character set: utf8mb4

  - collation: utf8mb4_bin

  - row_format: compressed

See: https://dev.mysql.com/doc/refman/5.7/en/charset-unicode-utf8mb4.html https://dev.mysql.com/doc/refman/5.7/en/innodb-parameters.html#sysvar_innodb_large_prefix https://mariadb.com/kb/en/mariadb/xtradbinnodb-server-system-variables/#innodb_large_prefix http://www.tocker.ca/2013/10/31/benchmarking-innodb-page-compression-performance.html http://mechanics.flite.com/blog/2014/07/29/using-innodb-large-prefix-to-avoid-error-1071/

    'supportedDatabases' => [
            'sqlite',
            'mysql',
            'pgsql',
            'oci',
    ],

Database types that are supported for installation.

Available:

  - sqlite (SQLite3)

  - mysql (MySQL)

  - pgsql (PostgreSQL)

  - oci (Oracle)

Defaults to the following databases:

  - sqlite (SQLite3)

  - mysql (MySQL)

  - pgsql (PostgreSQL)

    'tempdirectory' => '/tmp/nextcloudtemp',

Override where Nextcloud stores temporary files. Useful in situations where the system temporary directory is on a limited space ramdisk or is otherwise restricted, or if external storages which do not support streaming are in use.

The Web server user must have write access to this directory.

## Hashing

    'hashing_default_password' => false,

By default Nextcloud will use the Argon2 password hashing if available.

However if for whatever reason you want to stick with the PASSWORD_DEFAULT of your php version. Then set the setting to true.

Nextcloud uses the Argon2 algorithm (with PHP >= 7.2) to create hashes by its own and exposes its configuration options as following. More information can be found at: https://www.php.net/manual/en/function.password-hash.php ——————————————————————————————————————————————————————————————————————————–

    'hashingMemoryCost' => PASSWORD_ARGON2_DEFAULT_MEMORY_COST,

The allowed maximum memory in KiB to be used by the algorithm for computing a hash. The smallest possible value is 8. Values that undershoot the minimum will be ignored in favor of the default.

    'hashingTimeCost' => PASSWORD_ARGON2_DEFAULT_TIME_COST,

The allowed maximum time in seconds that can be used by the algorithm for computing a hash. The value must be an integer, and the minimum value is 1.

Values that undershoot the minimum will be ignored in favor of the default.

    'hashingThreads' => PASSWORD_ARGON2_DEFAULT_THREADS,

The allowed number of CPU threads that can be used by the algorithm for computing a hash. The value must be an integer, and the minimum value is 1.

Rationally it does not help to provide a number higher than the available threads on the machine. Values that undershoot the minimum will be ignored in favor of the default.

    'hashingCost' => 10,

The hashing cost used by hashes generated by Nextcloud Using a higher value requires more time and CPU power to calculate the hashes

    'blacklisted_files' => ['.htaccess'],

Blacklist a specific file or files and disallow the upload of files with this name. `.htaccess` is blocked by default.

WARNING: USE THIS ONLY IF YOU KNOW WHAT YOU ARE DOING.

Defaults to `array('.htaccess')`

    'share_folder' => '/',

Define a default folder for shared files and folders other than root.

Changes to this value will only have effect on new shares.

Defaults to `/`

    'theme' => '',

If you are applying a theme to Nextcloud, enter the name of the theme here.

The default location for themes is `nextcloud/themes/`.

Defaults to the theming app which is shipped since Nextcloud 9

    'cipher' => 'AES-256-CFB',

The default cipher for encrypting files. Currently AES-128-CFB and AES-256-CFB are supported.

    'minimum.supported.desktop.version' => '2.0.0',

The minimum Nextcloud desktop client version that will be allowed to sync with this server instance. All connections made from earlier clients will be denied by the server. Defaults to the minimum officially supported Nextcloud desktop clientversion at the time of release of this server version.

When changing this, note that older unsupported versions of the Nextcloud desktop client may not function as expected, and could lead to permanent data loss for clients or other unexpected results.

Defaults to `2.0.0`

    'quota_include_external_storage' => false,

EXPERIMENTAL: option whether to include external storage in quota calculation, defaults to false.

Defaults to `false`

    'external_storage.auth_availability_delay' => 1800,

When an external storage is unavailable for some reasons, it will be flagged as such for 10 minutes. When the trigger is a failed authentication attempt the delay is higher and can be controlled with this option. The motivation is to make account lock outs at Active Directories (and compatible) more unlikely.

Defaults to `1800` (seconds)

    'filesystem_check_changes' => 0,

Specifies how often the local filesystem (the Nextcloud data/ directory, and NFS mounts in data/) is checked for changes made outside Nextcloud. This does not apply to external storages.

0 -> Never check the filesystem for outside changes, provides a performance increase when it’s certain that no changes are made directly to the filesystem

1 -> Check each file or folder at most once per request, recommended for general use if outside changes might happen.

Defaults to `0`

    'part_file_in_storage' => true,

By default Nextcloud will store the part files created during upload in the same storage as the upload target. Setting this to false will store the part files in the root of the users folder which might be required to work with certain external storage setups that have limited rename capabilities.

Defaults to `true`

    'mount_file' => '/var/www/nextcloud/data/mount.json',

Where `mount.json` file should be stored, defaults to `data/mount.json` in the Nextcloud directory.

Defaults to `data/mount.json` in the Nextcloud directory.

    'filesystem_cache_readonly' => false,

When `true`, prevent Nextcloud from changing the cache due to changes in the filesystem for all storage.

Defaults to `false`

    'secret' => '',

Secret used by Nextcloud for various purposes, e.g. to encrypt data. If you lose this string there will be data corruption.

    'trusted_proxies' => ['203.0.113.45', '198.51.100.128', '192.168.2.0/24'],

List of trusted proxy servers

You may set this to an array containing a combination of - IPv4 addresses, e.g. 192.168.2.123 - IPv4 ranges in CIDR notation, e.g. 192.168.2.0/24 - IPv6 addresses, e.g. fd9e:21a7:a92c:2323::1

_(CIDR notation for IPv6 is currently work in progress and thus not available as of yet)_

When an incoming request’s REMOTE_ADDR matches any of the IP addresses specified here, it is assumed to be a proxy instead of a client. Thus, the client IP will be read from the HTTP header specified in forwarded_for_headers instead of from REMOTE_ADDR.

So if you configure trusted_proxies, also consider setting forwarded_for_headers which otherwise defaults to HTTP_X_FORWARDED_FOR (the X-Forwarded-For header).

Defaults to an empty array.

    'forwarded_for_headers' => ['HTTP_X_FORWARDED', 'HTTP_FORWARDED_FOR'],

Headers that should be trusted as client IP address in combination with trusted_proxies. If the HTTP header looks like ‘X-Forwarded-For’, then use ‘HTTP_X_FORWARDED_FOR’ here.

If set incorrectly, a client can spoof their IP address as visible to Nextcloud, bypassing access controls and making logs useless!

Defaults to `'HTTP_X_FORWARDED_FOR'`

    'max_filesize_animated_gifs_public_sharing' => 10,

max file size for animating gifs on public-sharing-site.

If the gif is bigger, it’ll show a static preview

Value represents the maximum filesize in megabytes. Set to `-1` for no limit.

Defaults to `10` megabytes

    'filelocking.enabled' => true,

Enables transactional file locking.

This is enabled by default.

Prevents concurrent processes from accessing the same files at the same time. Can help prevent side effects that would be caused by concurrent operations. Mainly relevant for very large installations with many users working with shared files.

Defaults to `true`

    'filelocking.ttl' => 60*60,

Set the lock’s time-to-live in seconds.

Any lock older than this will be automatically cleaned up.

Defaults to `60*60` seconds (1 hour) or the php

  max_execution_time, whichever is higher.

    'memcache.locking' => '\\OC\\Memcache\\Redis',

Memory caching backend for file locking

Because most memcache backends can clean values without warning using redis is highly recommended to avoid data loss.

Defaults to `none`

    'filelocking.debug' => false,

Enable locking debug logging

Note that this can lead to a very large volume of log items being written which can lead to performance degradation and large log files on busy instance.

Thus enabling this in production for longer periods of time is not recommended or should be used together with the `log.condition` setting.

    'upgrade.disable-web' => false,

Disable the web based updater

    'debug' => false,

Set this Nextcloud instance to debugging mode

Only enable this for local development and not in production environments This will disable the minifier and outputs some additional debug information

Defaults to `false`

    'data-fingerprint' => '',

Sets the data-fingerprint of the current data served

This is a property used by the clients to find out if a backup has been restored on the server. Once a backup is restored run ./occ maintenance:data-fingerprint To set this to a new value.

Updating/Deleting this value can make connected clients stall until the user has resolved conflicts.

Defaults to `''` (empty string)

    'copied_sample_config' => true,

This entry is just here to show a warning in case somebody copied the sample configuration. DO NOT ADD THIS SWITCH TO YOUR CONFIGURATION!

If you, brave person, have read until here be aware that you should not modify ANY settings in this file without reading the documentation.

    'lookup_server' => 'https://lookup.nextcloud.com',

use a custom lookup server to publish user data

    'gs.enabled' => false,

set to true if the server is used in a setup based on Nextcloud’s Global Scale architecture

    'gs.federation' => 'internal',

by default federation is only used internally in a Global Scale setup If you want to allow federation outside of your environment set it to ‘global’

    'csrf.optout' => [
            '/^WebDAVFS/', // OS X Finder
            '/^Microsoft-WebDAV-MiniRedir/', // Windows webdav drive
    ],

List of incompatible user agents opted out from Same Site Cookie Protection.

Some user agents are notorious and don’t really properly follow HTTP specifications. For those, have an opt-out.

WARNING: only use this if you know what you are doing

    'simpleSignUpLink.shown' => true,

By default there is on public pages a link shown that allows users to learn about the “simple sign up” - see https://nextcloud.com/signup/

If this is set to “false” it will not show the link.

    'login_form_autocomplete' => true,

By default autocompletion is enabled for the login form on Nextcloud’s login page.

While this is enabled, browsers are allowed to “remember” login names and such. Some companies require it to be disabled to comply with their security policy.

Simply set this property to “false”, if you want to turn this feature off.

## App config options

### Activity app

Retention for activities of the activity app:

    'activity_expire_days' => 365,

Every day a cron job is ran, which deletes all activities for all users which are older then the number of days that is set for `activity_expire_days`

    'activity_use_cached_mountpoints' => false,

Before enabling this, read the warning in Activities in groupfolders

### Settings app

If an email address of a user is changed by an admin, then it triggers an email to the user that states “Your email address on URL was changed by an administrator.”. In some cases this should not be triggered, because it was a normal maintenance change. To disable this specific email the appconfig option `disable_email.email_address_changed_by_admin` can be set to `yes`:

    occ config:app:set settings disable_activity.email_address_changed_by_admin --value yes

To disable this behaviour change it to any other value or delete the app config:

    occ config:app:delete settings disable_activity.email_address_changed_by_admin

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