vsftpd is a simple and secure FTP server, I hear. I've used it to set up an FTP server quickly. Rather than fighting with TLS and FTP, I just use SFTP now - it's much simpler.
You'll need to download and install vsftpd and openssh-server at least. Also, I usually use AllowUsers in my /etc/ssh/sshd_config to whitelist which users are allowed to ssh in like so: