Il 08/09/2015 14:12, Reco ha scritto: > It there anything useful in apache's error.log? Maybe failed dpkg > configuration script left httpd.conf in invalid state, or something. Unfortunately the log is empty (a previous error showed apache was unable to open it, so I changed ownership to root:www-data, which seemed to me an odd thing to do. Thanks for your help. -- Paolo Cavallini - www.faunalia.eu QGIS & PostGIS courses: http://www.faunalia.eu/training.html