Minio server stores all its configuration data in `${HOME}/.minio/config.json` file by default. Following sections provide detailed explanation of each fields and how to customize them. A complete example of `config.json` is available [here](https://raw.githubusercontent.com/minio/minio/master/docs/config/config.sample.json)
## Configuration Directory
The default configuration directory is `${HOME}/.minio`. You can override the default configuration directory using `--config-dir` command-line option. Minio server generates a new `config.json` with auto-generated access credentials when its started for the first time.
```sh
minio server --config-dir /etc/minio
```
### Certificate Directory
TLS certificates are stored under ``${HOME}/.minio/certs`` directory. You need to place certificates here to enable `HTTPS` based access. Read more about [How to secure access to Minio server with TLS](http://docs.minio.io/docs/how-to-secure-access-to-minio-server-with-tls).
Following is the directory structure for Minio server with TLS certificates.
```sh
$ tree ~/.minio
/home/user1/.minio
├── certs
│ ├── CAs
│ ├── private.key
│ └── public.crt
└── config.json
```
### Configuration Fields
#### Version
|Field|Type|Description|
|:---|:---|:---|
|``version``|_string_| `version` determines the configuration file format. Any older version will be automatically be migrated to the latest version upon startup. [DO NOT EDIT THIS FIELD MANUALLY]|
#### Credential
|Field|Type|Description|
|:---|:---|:---|
|``credential``| | Auth credential for object storage and web access.|
|``credential.accessKey`` | _string_ | Access key of 5 to 20 characters in length. You may override this field with `MINIO_ACCESS_KEY` environment variable.|
|``credential.secretKey`` | _string_ | Secret key of 8 to 40 characters in length. You may override this field with `MINIO_SECRET_KEY` environment variable.|
Example:
```sh
export MINIO_ACCESS_KEY=admin
export MINIO_SECRET_KEY=password
minio server ~/Photos
```
#### Region
|Field|Type|Description|
|:---|:---|:---|
|``region``| _string_ | `region` describes the physical location of the server. By default it is set to `us-east-1`, which is same as AWS3's default region. If you are unsure leave it to default.|
#### Browser
|Field|Type|Description|
|:---|:---|:---|
|``browser``| _string_ | Enable or disable access to web UI. By default it is set to `on`. You may override this field with ``MINIO_BROWSER`` environment variable.|
Example:
```sh
export MINIO_BROWSER=off
minio server ~/Photos
```
#### Logger
|Field|Type|Description|
|:---|:---|:---|
|``logger ``| |Server logs errors and fatal messages via logger. You may enable one or more loggers at the same time.|
|``logger.console``| |Send log messages to console.|
|``logger.console.enable``| _bool_ | Enable or disable console logger. Default is set to _true_.|
|``logger.file``| |Send log message to a file.|
|``logger.file.enable``| _bool_ | Enable or disable file logger. Default is set to _false_.|
|``logger.file.filename``| _string_ | Path and name of the log file. Example: _/var/log/minio.log_ |
#### Notify
|Field|Type|Description|
|:---|:---|:---|
|``notify``| |Notify enables bucket notification events for lambda computing via the following targets.|
|``notify.amqp``| |[Configure to publish Minio events via AMQP target.](http://docs.minio.io/docs/minio-bucket-notification-guide#AMQP)|
|``notify.elasticsearch``| |[Configure to publish Minio events via Elasticsearch target.](http://docs.minio.io/docs/minio-bucket-notification-guide#Elasticsearch)|
|``notify.redis``| |[Configure to publish Minio events via Redis target.](http://docs.minio.io/docs/minio-bucket-notification-guide#Redis)|
|``notify.nats``| |[Configure to publish Minio events via NATS target.](http://docs.minio.io/docs/minio-bucket-notification-guide#NATS)|
|``notify.postgresql``| |[Configure to publish Minio events via PostgreSQL target.](http://docs.minio.io/docs/minio-bucket-notification-guide#PostgreSQL)|
|``notify.kafka``| |[Configure to publish Minio events via Apache Kafka target.](http://docs.minio.io/docs/minio-bucket-notification-guide#apache-kafka)|
|``notify.webhook``| |[Configure to publish Minio events via Webhooks target.](http://docs.minio.io/docs/minio-bucket-notification-guide#webhooks)|
