# Configuring an HTTPS connection for Talend Data Preparation

To set up an HTTPS secure connection between the different services, as well as with the MongoDB server, you need to edit the application.properties file.

Note that securing the MongoDB connection is not possible if you selected the embedded MongoDB instance during the installation process.

If you want to secure connections with MongoDB using SSL, MongoDB Enterprise Server has to be manually installed on your machine. For more information, refer to the supported MongoDB versions in [Compatible databases](https://help.qlik.com/talend/en-US/installation-guide-linux/7.3/compatible-databases).

## Procedure

1. Open the <Data\_Preparation\_Path>/config/application.properties file.
2. To define the path and password of the certificate for the Data Preparation server, edit the following lines:
   ```
   # server TLS setup
   tls.key-store=/path/to/key-store.jks
   tls.key-store-password=key-store_password
   ```
3. To define the path and password of the signing Certificate Authority (CA) that issued the server certificate, edit the following lines:
   ```
   tls.trust-store=/path/to/trust-store.jks
   tls.trust-store-password=trust-store_password
   ```
4. To make the security control more flexible regarding the certificate common name and its URL, edit the following lines:
   ```
   # false to disable hostname verification
   tls.verify-hostname=true
   ```
5. To define the path and password of the signing Certificate Authority (CA) that issued the MongoDB server certificate, edit the following lines:
   ```
   mongodb.ssl=true
   mongodb.ssl.trust-store=/path/to/trus-store.jks
   mongodb.ssl.trust-store-password=trust-store-password
   ```
6. Change the services URLs from http to https:
   ```
   dataset.service.url=https://${public.ip}:${server.port}
   dataset-dispatcher.service.url=http://${public.ip}:${server.port}
   transformation.service.url=https://${public.ip}:${server.port}
   preparation.service.url=https://${public.ip}:${server.port}
   fullrun.service.url=https://${public.ip}:${server.port}
   gateway.service.url=https://${public.ip}:${server.port}
   security.oidc.client.logoutSuccessUrl=https://${public.ip}:${server.port}
   gateway-api.service.url=https://${public.ip}:${server.port}
   zuul.routes.api.url=https://${public.ip}:${server.port}/api
   zuul.routes.upload.url=https://${public.ip}:${server.port}/api
   ```

## Results

Talend Data Preparation only supports the Java Key Store (.jks) format to store keys and certificates.