Hi, i read few post about how to reduce de verbosity of startup messages o logback. In "Automatic printing of status messages in case of warning or errors" of [1] write... Instead of invoking StatusPrinter programmatically from your code, you can instruct the configuration file to dump status data, even in the absence of errors. To achieve this, you need to set the debug attribute of the configuration element, i.e. the top-most element in the configuration file, as shown below. Please note that this debug attribute relates only to the status data. It does not affect logback's configuration otherwise, in particular with respect to logger levels. (If you are asking, no, the root logger will not be set to DEBUG.) in special... Please note that this debug attribute relates only to the status data. It does not affect logback's configuration. The question is? How can i reduce to 0 "logback's configuration" messages? This is a little problen, because o tomcat, this messages goes to catalina.out and make that other problems on startup where dificult to find. Any idea? Thanks. [1] http://logback.qos.ch/manual/configuration.html -- Jose Juan Montiel Martinez Eurobits Technologies Calle Musgo 3, 1ª Planta 28023 Madrid T +34-917080300 F +34-913077480 josejuan.montiel@eurobits.es http://www.eurobits.com