-The configuration variables database.hostname, database.username, database.password, database.database and database.charset are holding your credentials for the database connection.
-If you need to specify a port to access the database, you can do so by appending ":portnumber" to the database.hostname variable.
+The configuration variables `database.hostname` (or `database.socket`), `database.username`, `database.password`, `database.database` and optionally `database.charset` are holding your credentials for the database connection.
+If you need to specify a port to access the database, you can do so by appending ":portnumber" to the `database.hostname` variable.