… if you have ssh properly setup (public-private-key-based-auth) then you can easily connect via sftp to your host and abandon ftp, which is prone to security problems.

E.g. with FileZilla sftp filezilla

to Disable vsftpd:

# stop vsftpd service
service vsftpd stop;

# disable vsftpd service (should also work in debian)
# pre systemd distributions:
update-rc.d -f vsftpd remove;

# disable vsftpd service (only works in redhat)
systemctl disable vsftpd.service;
chkconfig vsftpd off; 

to install sftp client: FileZilla

# fedora/redhat/centos
yum install filezilla;
# debian/ubuntu
apt update && apt install filezilla;