> Can someone familiar with the source let me know where the JDBC connection > string is generated?
There's no spot in the Guacamole code that actually generates the connection string - this is abstracted to the MyBatis JDBCHelper code. The code that accomplishes this for the MySQL module is here: https://github.com/apache/guacamole-client/blob/master/extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-mysql/src/main/java/org/apache/guacamole/auth/mysql/MySQLAuthenticationProviderModule.java -Nick
