/home/user
apt-get install proftpd
/home/user
/var/www/user
при подключении по FTP? yum -y install epel-release
rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
yum -y update
yum install -y proftpd openssl proftpd-utils
systemctl start proftpd.service
systemctl enable proftpd.service
adduser site.ru -g600 -o -u600 -d /home/bitrix/ext_www/site.ru
firewall-cmd --add-service=ftp --permanent
firewall-cmd --reload