1 to see if the installation
rpm -q vsftpd
2, the installation method
yum install -y vsftpd
3, view the installation position
whereis vsftpd
4, Service Management
// Service State
systemctl Status vsftpd.service
// service starts
systemctl Start vsftpd.service
// service stops
systemctl STOP vsftpd.service
// open start
systemctl enable vsftpd.service
5, be continued ....