# Defining an SSL connection

You can define an SSL connection for Talend Administration Center using the configuration.properties file.

## Procedure

1. Stop your Tomcat server.
2. Open the following file:

   <ApplicationPath>/WEB-INF/classes/configuration.properties
3. Uncomment and edit the following lines to define your keystore path, keystore password, truststore path, and truststore password:
   ```
   #keystore.path=c://keystore
   #keystore.password=changekeystorepass
   #truststore.path=c://truststore
   #truststore.password=changetruststorepass
   ```
4. Save your changes and restart your Tomcat server.

   Once the passwords are read by Talend Administration Center, they will be replaced by encrypted ones.

### In this section

* [Defining an SSL connection with an AWS RDS database](https://help.qlik.com/talend/en-US/installation-guide-linux/7.2/defining-ssl-connection-with-aws-rds-database)