vsftpd configuration of the ftp server in my company

Just to remember the vsftpd configuration of the ftp server in my company

The following configuration is on centos 6

anonymous_enable=NO local_enable=YES write_enable=YES local_umask=022 dirmessage_enable=YES xferlog_enable=YES xferlog_file=/var/log/vsftpd.log log_ftp_protocol=YES connect_from_port_20=YES xferlog_std_format=YES nopriv_user=ftp pam_service_name=vsftpd listen=YES tcp_wrappers=YES pasv_enable=YES pasv_max_port=1200 pasv_min_port=1026 port_enable=YES ascii_upload_enable=YES ascii_download_enable=YES ftpd_banner=Welcome to Private FTP Server. secure_chroot_dir=/home one_process_model=NO chroot_local_user=YES allow_writeable_chroot=YES guest_enable=NO use_localtime=YES #rsa_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem #rsa_private_key_file=/etc/ssl/private/ssl-cert-snakeoil.key seccomp_sandbox=NO

This works since 2011 after upgrading from Centos 5