Hi Raffaele, Raffaele Viola wrote: Basically xwiki uses log4j as logging facility (http://logging.apache.org/log4j/). To know how to enable logging take a look at http://platform.xwiki.org/xwiki/bin/view/AdminGuide/Logging Hope this helps. -- Víctor A. Rodríguez (http://www.bit-man.com.ar) El bit Fantasma (Bit-Man) - Algorithm junkie Perl Mongers Capital Federal (http://cafe.pm.org/) GNU/Linux User Group - FCEyN - UBA (http://glugcen.dc.uba.ar/)