public void setProxyPort(Integer proxyPort) {
        this.proxyPort = proxyPort;
    }
Sets the port of the guacd instance to use.

@param proxyPort
    The port of the guacd instance to use, or null if the port of the
    default guacd instance should be used.
extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-base/src/main/java/org/apache/guacamole/auth/jdbc/connection/ConnectionModel.java