Hi there! I tried to run command du -a /var | sort -n -r | head -n 10 for list largest files/folders in system. I found that the largest folder is /var/log/ispconfig/httpd becouse there are too old logs (from installation date). So, where could be problem? ISPConfig: 3.0.5.4p8 System: Debian 8.2 jessie Thanks.
Most likely the bind mounts of the log files are not mounted. Do you see the same log files in the /var/www/domain.tld/log/ folder? If not, run: mount -a and check /var/www/domain.tld/log/ again. If you see the log files there now then the old files will be removed on the next nightly cronjob run.