Merge pull request hestiacp#934 from ioannidesalex/patch-12

Security enhancements

Author: serghey-rodin

install/ubuntu/16.04/vsftpd/vsftpd.conf

@@ -17,10 +17,11 @@ tcp_wrappers=YES
 force_dot_files=YES
 ascii_upload_enable=YES
 ascii_download_enable=YES
-#allow_writable_chroot=YES
 allow_writeable_chroot=YES
 seccomp_sandbox=NO
 pasv_enable=YES
-pasv_max_port=12100
 pasv_min_port=12000
+pasv_max_port=12100
+max_per_ip=10
+max_clients=100
 use_localtime=YES