• 安装配置

CentOS 6 搭建 FTP 服务记录
https://segmentfault.com/a/1190000002926477

• 防火墙端口配置

centos7防火墙默认是firewall，firewalld基本配置
http://blog.feehi.com/linux/473.html

• 异常情况：

Fixing 500 OOPS: vsftpd: refusing to run with writable root inside chroot ()
https://www.benscobie.com/fixing-500-oops-vsftpd-refusing-to-run-with-writable-root-inside-chroot/

• 知识库：

vsftp chroot 设置
http://spv999.blog.51cto.com/3113681/800503

centos+vsftp