- Default Parameters
- Unique identifier for your ownCloud installation
- Auto-generated salt used to hash all passwords
- List of trusted domains that users can log into
- Global list of CORS domains
- Define the directory where user files are stored
- Current version number of your ownCloud installation
- Show or hide the ownCloud version information in
- Show or hide the server hostname in
- Show the short hostname in
- Identifies the database used with this installation
- Defines the database server host name
- Defines the ownCloud database name
- Defines the ownCloud database user
- Defines the password for the database user
- Defines the prefix for the ownCloud tables in the database
- Indicates whether the ownCloud instance was installed successfully
- User Experience
- Defines the default language of your ownCloud instance
- Defines the default app to open on user login
- Enable or disable avatars or user profile photos
- Allows or disallows users to change their display names
- Defines the lifetime of the remember login cookie
- Defines the lifetime of a session after inactivity
- Enable or disable session keep-alive when a user is logged in to the Web UI
- Enforces token only authentication for apps and clients connecting to ownCloud
- Defines additional login buttons on the logon screen
- Enable or disable ownCloud’s built-in CSRF protection mechanism
- Defines the directory where the skeleton files are located
- Defines the
- Define a custom link to reset passwords
- Allow medial search on user account properties
- Allow medial search on the group id
- Minimum characters entered before a search returns results
- Mail Parameters
- Define the email RETURN address
- Define the email FROM address
- Enable or disable SMTP class debugging
- Define the mode for sending an email
- Define the IP address of your mail server host
- Define the port for sending an email
- Define the SMTP server timeout
- Define the SMTP security style
- Define the SMTP authentication
- Define the SMTP authentication type
- Define the SMTP authentication username
- Define the SMTP authentication password
- Proxy Configurations
- Deleted Items (trash bin)
- File versions
- ownCloud Verifications
- Alternate Code Locations
- Enable preview generation
- Define the preview path
- Define the maximum x-axis width for previews
- Define the maximum y-axis width for previews
- Define the maximum preview scale factor
- Define the maximum preview filesize limit
- Define the custom path for the LibreOffice / OpenOffice binary
- Define additional arguments for LibreOffice / OpenOffice
- Define preview providers
- Memory caching backend configuration
- Memory caching backend for locally stored data
- Memory caching backend for distributed data
- Define Redis connection details
- Connection details for a Redis Cluster
- Define server details for memcached servers to use for memory caching
- Connection options for memcached
- Define the location of the cache folder
- Define the TTL for garbage collection
- Define the DAV chunk base directory
- All other configuration options
- Define additional database driver options
- Define sqlite3 journal mode
- Define MySQL 3/4 byte character handling
- Define supported database types
- Define the location for temporary files
- Define the hashing cost
- Define blacklisted files
- Define excluded files
- Define files that are excluded from integrity checking
- Define apps or themes that are excluded from integrity checking
- Define a default folder for shared files and folders other than root
- Define the default cipher for encrypting files
- Define the minimum supported ownCloud desktop client version
- Define whether to include external storage in quota calculation
- Define how often filesystem changes are detected
- Define where part files are located
- Define the location of
- Prevent cache changes due to changes in the filesystem
- Define ownClouds internal secret
- List of trusted proxy servers
- Defines the maximum filesize for animated GIF´s
- Enables transactional file locking
- Defines the TTL for file locking
- Define the memory caching backend for file locking
- Disable the web based updater
- Set whether or not to enable automatic update of market apps.
- Place this ownCloud instance into debugging mode
- Set the data-fingerprint of the current data served
- Define if you have copied the sample configuration
- Enable or disable the files_external local mount option
- Enable or disable debug logging for SMB access
- Enable or disable async DAV extensions
- Enable or disable tech previews
ownCloud uses the
config/config.php file to control server operations.
config/config.sample.php lists all the configurable parameters within
ownCloud, 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
The installer creates a configuration containing the essential parameters.
Only manually add configuration parameters to
ownCloud 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 ownCloud, and the values in these files take precedence over config.php.
These parameters are configured by the ownCloud installer and are required for your ownCloud server to operate.
This unique identifier is created automatically by the installer.
This example is for documentation only, and you should never use it because it will not work.
instanceid is created when you install ownCloud. Needs to start with a letter.
'instanceid' ⇒ 'd3c944a9a',
The salt used to hash all passwords and is auto-generated by the ownCloud 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.
Specifying trusted domains prevents host header poisoning.
Do not remove this, as it performs necessary security checks.
Please consider that for backend processes like background jobs or occ commands,
the URL parameter in key
overwrite.cli.url is used. For more details, please see that key.
All users can use tools running CORS (Cross-Origin Resource Sharing) requests from the listed domains.
This defaults to
data/ in the ownCloud directory.
The SQLite database is also stored here, when you use SQLite. (SQLite is not available in ownCloud Enterprise Edition)
This is set up during installation and update, so you shouldn’t need to change it.
This hardens an ownCloud instance by hiding the version information in
This can be a legitimate step. Please consult the documentation before enabling this.
Optional config option, defaults to hidden.
Optional config option, defaults to use the gethostname() return value.
See also config option
Available: - sqlite (SQLite3 - Not in Enterprise Edition) - mysql (MySQL/MariaDB) - pgsql (PostgreSQL) - oci (Oracle - Enterprise Edition Only)
hostname.example.com, or the IP address.
To specify a port use:
To specify a Unix socket use:
The name of the ownCloud database which is set during installation.
You should not need to change this.
This must be unique across ownCloud instances using the same SQL database.
This is setup during installation, so you shouldn’t need to change it.
This is set up during installation, so you shouldn’t need to change it.
These optional parameters control some aspects of the user interface. Default values, where present, are shown.
Using ISO_639-1 language codes such as
en for English,
de for German, and
fr for French.
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.
Use the app names as they appear in the URL after clicking them in the Apps menu, such as files, documents or calendar etc. You can use a comma-separated list of app names, so if the first app is not enabled for a user then ownCloud will try the second one, and so on. If no enabled apps are found it defaults to the Files app.
true enables avatars, or user profile photos,
false disables them.
These appear on the User page, on user’s Personal pages and are used by some apps (contacts, mail, etc).
true allows users to change their display names (on their Personal pages),
false prevents them from changing their display names.
The remember login cookie is set when the user clicks the
on the login screen. The default is 15 days, expressed in seconds.
The default is 20 minutes, expressed in seconds.
Enabling this sends a "heartbeat" to the server to keep it from timing out.
If enabled, all access requests using the users password are blocked for enhanced security.
Users have to generate special app-passwords (tokens) for their apps or clients in their personal settings which are further used for app or client authentication. Browser logon is not affected.
Provides the ability to create additional login buttons on the logon screen, for e.g., SSO integration 'login.alternatives' ⇒ [ ['href' ⇒ 'https://www.testshib.org/Shibboleth.sso/ProtectNetwork?target=https%3A%2F%2Fmy.owncloud.tld%2Flogin%2Fsso-saml%2F', 'name' ⇒ 'ProtectNetwork', 'img' ⇒ '/img/PN_sign-in.gif'], ['href' ⇒ 'https://www.testshib.org/Shibboleth.sso/OpenIdP.org?target=https%3A%2F%2Fmy.owncloud.tld%2Flogin%2Fsso-saml%2F', 'name' ⇒ 'OpenIdP.org', 'img' ⇒ '/img/openidp.png'], ]
In some specific setups CSRF protection is handled in the environment, e.g., running F5 ASM. In these cases the built-in mechanism is not needed and can be disabled. Generally speaking, however, this config switch should be left unchanged.
|leave this as is if you’re not sure what it does.|
These files will be copied to the data directory of new users.
Leave this directory empty if you do not want to copy any skeleton files. A valid path must be given for this key otherwise errors will be generated in owncloud.log.
Those need to be enabled first and allow you to configure alternate authentication backends.
Supported backends are: IMAP (OC_User_IMAP), SMB (OC_User_SMB), and FTP (OC_User_FTP).
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.
If you do not want to provide any link, replace the URL with 'disabled'.
These account properties can be display name, user id, email, and other search terms.
Allows finding 'Alice' when searching for 'lic'. May slow down user search. Disable this if you encounter slow username search in the sharing dialog.
Allows finding 'test' in groups when searching for 'es'.
This is only used in the DB group backend (local groups). This won’t be used against LDAP, Shibboleth or any other group backend.
Defines the minimum characters entered before a search returns results for users or groups in the share autocomplete form. Lower values increase search time especially for large backends.
Any exact matches to a user or group will be returned, even though less than the minimum characters have been entered. The search is case insensitive. For example, entering "tom" will always return "Tom" if there is an exact match.
These configure the email settings for ownCloud notifications and password resets.
The return address that you want to appear on emails sent by the ownCloud server.
firstname.lastname@example.org, substituting your own domain, of course.
FROM address that overrides the built-in
lostpassword-noreply FROM addresses.
Modes to use for sending mail:
If you are using local or remote SMTP, set this to
If you are using PHP mail you must have an installed and working email system
on the server. The program used to send email is defined in the
sendmail option you need an installed and working email system on
the server, with
/usr/sbin/sendmail installed on your Unix system.
qmail the binary is /var/qmail/bin/sendmail, and it must be installed
on your Unix system.
mail_smtpmode. 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:
mail_smtpmode. Sets the SMTP server timeout in seconds.
You may need to increase this if you are running an anti-malware or spam scanner.
mail_smtpmode. Specify when you are using
Leave empty for no encryption.
mail_smtpmode. Change this to
true if your mail server requires authentication.
mail_smtpmode. If SMTP authentication is required,
choose the authentication type as
LOGIN (default) or
mail_smtpauth. Specify the username for authenticating to the SMTP server.
The automatic hostname detection of ownCloud 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
When generating URLs, ownCloud attempts to detect whether the server is
http. However, if ownCloud is behind a proxy
and the proxy handles the
https calls, ownCloud would not know that
ssl is in use, which would result in incorrect URLs being generated.
Valid values are
ownCloud attempts to detect the webroot for generating URLs automatically.
For example, if
www.example.com/owncloud is the URL pointing to the
ownCloud instance, the webroot is
/owncloud. When proxies are in use, it
may be difficult for ownCloud to detect this parameter, resulting in invalid URLs.
This option allows you to define a manual override condition as a regular
expression for the remote IP address. The keys
overwritehost are subject to this condition.
For example, defining a range of IP addresses starting with
and ending with 1 to 3: *
Use this configuration parameter to specify the base URL for any URLs which are generated within ownCloud using any kind of command line tools (cron or occ).
The value should contain the full base URL:
As an example, alerts shown in the browser to upgrade an app are triggered by
a cron background process and therefore uses the url of this key, even if the user
has logged on via a different domain defined in key
trusted_domains. When the
user clicks an alert like this, he will be redirected to that URL and must logon again.
If phoenix.baseUrl is set, public and private links will be redirected to this url.
Phoenix will handle these links accordingly.
As an example, in case 'phoenix.baseUrl' is set to 'http://phoenix.example.com', the shared link 'http://ocx.example.com/index.php/s/THoQjwYYMJvXMdW' will be redirected by ownCloud to 'http://phoenix.example.com/index.html#/s/THoQjwYYMJvXMdW'.
This parameter will be written as
RewriteBase on update and installation of
ownCloud to your
.htaccess file. While this value is often simply the URL
path of the ownCloud 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 ownCloud is
accessible at. So if ownCloud is accessible via
the correct value would most likely be
/owncloud. If ownCloud is running
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
sudo -u www-data php occ maintenance:update:htaccess. Now, when the
following conditions are met ownCloud URLs won’t contain
The optional authentication for the proxy to use to connect to the internet.
The format is:
The username and the password need to be urlencoded to avoid breaking the delimiter syntax "username:password@hostname:port
usern@me needs to be encoded as
These parameters control the Deleted files app.
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
ownCloud 8.1 and before.
autodefault setting. Keeps files and folders in the deleted files for up to 30 days, automatically deleting them (at any time) if space is needed. Note: files may not be removed if space is not required.
D, autokeeps 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, Ddelete all files in the trash bin that are older than D days automatically, delete other files anytime if space needed
D1, D2keep files and folders in the trash bin for at least D1 days and delete when exceeds D2 days
disabledtrash bin auto clean disabled, files and folders will be kept forever
These parameters control the Versions app.
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 ownCloud 8.1 and before.
autodefault setting. Automatically expire versions according to expire rules. Please refer to :doc:`../configuration/files/file_versioning` for more information.
D, autokeep versions at least for D days, apply expire rules to all versions that are older than D days
auto, Ddelete all versions that are older than D days automatically, delete other versions according to expire rules
D1, D2keep versions for at least D1 days and delete when exceeds D2 days
disabledversions auto clean disabled, versions will be kept forever
ownCloud performs several verification checks. There are two options,
Check if ownCloud is up-to-date and shows a notification if a new version is available.
This option is only applicable to ownCloud core. It is not applicable to app updates.
URL that ownCloud should use to look for updates
Is ownCloud connected to the Internet or running in a closed network?
Allows ownCloud to verify a working .well-known URL redirect.
This is done by attempting to make a request from JS to
In certain environments it is desired to have a read-only configuration file.
When this switch is set to
true ownCloud 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 ownCloud
it is required to make the configuration file writable again for the update
This defines the mode of operations. The default value is 'single-instance' which means that ownCloud is running on a single node, which might be the most common operations mode. The only other possible value for now is 'clustered-instance' which means that ownCloud is running on at least 2 nodes. The mode of operations has various impact on the behavior of ownCloud.
These parameters configure the logging options. For additional information or advanced configuration, please see the logging section in the documentation.
By default the ownCloud logs are sent to the
owncloud.log file in the
default ownCloud data directory.
If syslogging is desired, set this parameter to
Setting this parameter to
errorlog will use the PHP error_log function
Log file path for the ownCloud logging type.
Loglevel to start logging at. Valid values are: 0 = Debug, 1 = Info, 2 = Warning, 3 = Error, and 4 = Fatal. The default value is Warning.
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
The default value is
The syslog format can be changed to remove or add information.
In addition to the %replacements% below %level% can be used, but it is used as a dedicated parameter to the syslog logging facility anyway.
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
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
logfile: The log message invoked by the specified apps get redirected to
this logfile, this condition is met
Note: Not applicable when using syslog.
Defaults to an empty array
'log.conditions' => [ [ 'shared_secret' => '57b58edb6637fe3059b3595cf9c41b9', 'users' => ['user1'], 'apps' => ['files_texteditor'], 'logfile' => '/tmp/test.log' ], [ 'shared_secret' => '57b58edb6637fe3059b3595cf9c41b9', 'users' => ['user1'], 'apps' => ['files_mediaviewer'], 'logfile' => '/tmp/mediaviewer.log' ], ],
This uses PHP.date formatting; see http://php.net/manual/en/function.date.php
The default timezone for logfiles is UTC. You may change this; see http://php.net/manual/en/timezones.php
Enables log rotation and limits the total size of the logfiles.
The default is 0 or false which disables log 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 the defined limit. If a rotated log file is already present, it will be overwritten. If enabled, only the active log file and one rotated file are stored.
Some of the ownCloud code may be stored in alternate locations.
If you want to store apps in a custom directory instead of ownCloud’s default
/apps, you need to modify the
apps_paths key. There, you need to add a
new associative array that contains three elements. These are:
pathThe absolute file system path to the custom app folder.
urlThe request path to that folder relative to the ownCloud web root, prefixed with /.
writableWhether users can install apps in that folder. After the configuration is added, new apps will only install in a directory where writable is set to true.
The configuration example shows how to add a second directory, called
Here, new apps and updates are only written to the
This eases upgrade procedures of owncloud where shipped apps are delivered to apps/ by default.
OC::$SERVERROOT points to the web root of your instance.
Please see the Apps Management description on how to move custom apps properly.
ownCloud supports previews of image files, the covers of MP3 files, and text files. These options control enabling and disabling previews, and thumbnail size.
By default, ownCloud can generate previews for the following filetypes:
Covers of MP3 files
Valid values are
true, to enable previews, or
false, to disable previews
Location of the thumbnails folder, defaults to
$user is the current user. When specified, the format will change to
$previews_path is the configured previews base directory
$user will be substituted with the user id automatically.
For example if
/var/cache/owncloud/thumbnails then for a logged in
user1 the thumbnail path will be
The maximum width, in pixels, of a preview.
A value of
null means there is no limit.
The maximum height, in pixels, of a preview. A value of
null means there is no limit.
If a lot of small pictures are stored on the ownCloud instance and the
preview system generates blurry previews, you might want to consider setting
a maximum scale factor. By default, pictures are upscaled to 10 times the
original size. A value of
null disables scaling.
Max file size for generating image previews with imagegd (default behaviour) If the image is bigger, it will try other preview generators, but will most likely show the default mimetype icon
Value represents the maximum filesize in megabytes Default is 50. Set to -1 for no limit.
Use this setting if LibreOffice/OpenOffice requires additional arguments.
Only register providers that have been explicitly enabled
The following providers are enabled by default:
The following providers are disabled by default due to performance or privacy concerns:
note:: Troubleshooting steps for the MS Word previews are available at the :doc:`../configuration/files/collaborative_documents_configuration` section of the Administrators Manual.
The following providers are not available in Microsoft Windows:
Global settings for the Comments infrastructure
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.
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.
These options are for halting user activity when you are performing server maintenance.
If you want to prevent users from logging in to ownCloud 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 ownCloud instantly.
Available cache backends:
\OC\Memcache\APCuAPC user backend
\OC\Memcache\ArrayCacheIn-memory array-based backend (not recommended)
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.
Used for host-specific data, e.g. file paths
Used for installation-specific data, e.g. database caching
If unset, defaults to the value of memcache.local
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' => [ '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. ],
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 primary nodes (default) - \RedisCluster::FAILOVER_ERROR - failover to replicas for read commands if primary is unavailable - \RedisCluster::FAILOVER_DISTRIBUTE - randomly distribute read commands across primary and replicas
Server details for one or more memcached servers to use for memory caching
For more details please see http://apprize.info/php/scaling/15.html
'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 will be enabled if the igbinary PECL module is available //\Memcached::OPT_SERIALIZER => \Memcached::SERIALIZER_IGBINARY, ],
The location of the cache folder defaults to
$user is the current user. When specified, the format will change to
$cache_path is the configured cache directory
$user is the user.
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 ownCloud Client as upload isn’t completed within one day.
Location of the chunk folder, defaults to
$user is the current user. When specified, the format will change to
$dav.chunk_base_dir is the configured
cache directory and
$user is the user.
Global settings for Sharing
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.
Additional driver options for the database connection, eg. to enable SSL encryption in MySQL or specify a custom wait timeout on a cheap hoster.
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
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:
sudo -u www-data php 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/benchmarking-innodb-page-compression-performance.html http://mechanics.flite.com/blog/2014/07/29/using-innodb-large-prefix-to-avoid-error-1071/
Database types that are supported for installation.
Available: - sqlite (SQLite3 - Not in Enterprise Edition) - mysql (MySQL) - pgsql (PostgreSQL) - oci (Oracle - Enterprise Edition Only)
Override where ownCloud 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.
The hashing cost used by hashes generated by ownCloud.
Using a higher value requires more time and CPU power to calculate the hashes. As this number grows, the amount of work (typically CPU time or memory) necessary to compute the hash increases exponentially.
Blacklist a specific file or files and disallow the upload of files
with this name.
.htaccess is blocked by default.
|USE THIS ONLY IF YOU KNOW WHAT YOU ARE DOING.|
Exclude specific directory names and disallow scanning, creating and renaming using these names. Case insensitive.
Excluded directory names are queried at any path part like at the beginning, in the middle or at the end and will not be further processed if found. Please see the documentation for details and examples. Use when the storage backend supports, e.g. snapshot directories to be excluded.
|USE THIS ONLY IF YOU KNOW WHAT YOU ARE DOING.|
Exclude files from the integrity checker command
The list of apps that are allowed to have no signature.json. Besides ownCloud apps, this is particularly useful when creating ownCloud themes, because themes are treated as apps. The app is identified with it´s app-id.
The app-id can be identified by the foldername of the app in your apps directory. The following example allows app-1 and theme-2 to have no signature.
Currently AES-128-CFB and AES-256-CFB are supported.
The minimum ownCloud 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 ownCloud version at the time of release of this server version.
When changing this, note that older unsupported versions of the ownCloud desktop client may not function as expected, and could lead to permanent data loss for clients or other unexpected results.
EXPERIMENTAL: option whether to include external storage in quota calculation, defaults to false.
Specifies how often the local filesystem (the ownCloud data/ directory, and NFS mounts in data/) is checked for changes made outside ownCloud. This does not apply to external storages.
→ Never check the filesystem for outside changes, provides a performance increase when it’s certain that no changes are made directly to the filesystem
→ Check each file or folder at most once per request, recommended for general use if outside changes might happen.
By default ownCloud 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.
data/mount.json in the ownCloud directory.
true, prevent ownCloud from changing the cache due to changes in the
filesystem for all storage.
Secret used by ownCloud for various purposes, e.g. to encrypt data.
If you lose this string there will be data corruption.
If you configure these also consider setting
otherwise defaults to
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
If set incorrectly, a client can spoof their IP address as visible to ownCloud, bypassing access controls and making logs useless!
If not set, defaults to 'HTTP_X_FORWARDED_FOR'.
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.
10. Set to
-1 for no limit.
Transactional file locking 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.
Set the lock’s time-to-live in seconds.
Any lock older than this will be automatically cleaned up. If not set this defaults to either 1 hour or the php max_execution_time, whichever is higher.
Because most memcache backends can clean values without warning, using redis is highly recommended to avoid data loss.
The web based updater is enabled by default.
false to disable.
Only enable this for local development and not in production environments This will disable the minifier and outputs some additional debug information
Be warned that, if you set this to
true, exceptions display
stack traces on the web interface, including passwords, — in plain text!.
We strongly encourage you never to use it in production.
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 sudo -u www-data php 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.
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.
Set this property to true if you want to enable the files_external local mount option.
Set this property to true if you want to enable debug logging for SMB access.