After applying some vendor's patches (redhat and ubuntu), mod_status was broken; as a workaround, disabling it solves the issue
Issue solved: #LoadModule status_module modules/mod_status.so #ExtendedStatus On Issue is present: LoadModule status_module modules/mod_status.so ExtendedStatus On Is it a vendor's related problem or is it apache's one? Some suggestions? ref. links: https://rhn.redhat.com/errata/RHSA-2014-0920.html #bug is present https://bugs.launchpad.net/ubuntu/+source/apache2/+bug/1349288 #bug is present Regards Michele MAsè