* Virtuozzo / OpenVZ VPS may require /proc/sys/fs/inotify/max_user_watches to be increased by your provider for real-time file monitoring if more inotify resources are required than is set, some providers may not be willing to do this.
Plesk Obsidian 18.x, Plesk Onyx 17.8.11
Linux Malware Detect, ClamAV 1.00+ packages from EPEL or Debian/Ubuntu Repositories
Minimum 3 GB system memory with at least 1 GB free if installing ClamAV (optional)