Hello, I was looking for this answer but could not find anywhere besides a fix for OpenSUSE, but some details were different, so I decided to post the details to fix this error on Debian 8 + ISPConfig3: Error: Apache does not load, got the error "suEXEC is disabled: Invalid owner or file mode for /usr/lib/apache2/suexec" by issuing the command Code: systemctl -l status apache2.service Fix (for my system, at least): Code: chown root /usr/lib/apache2/suexec-pristine chmod 4754 /usr/lib/apache2/suexec-pristine (/usr/lib/apache2/suexec is a symlink to /usr/lib/apache2/suexec-pristine, therefore the change was made to the real file) Hope it will save someone a few minutes ;-) Cheers! Claudio H. Imai
