https://blog.wongcw.com/2018/08/27/centos-%e6%90%ad%e5%bb%ba-aria2-%e5%8f%8a-ariang-%e5%ae%9e%e7%8e%b0%e5%a4%9a%e7%a7%8d%e6%96%87%e4%bb%b6%e7%9a%84%e7%a6%bb%e7%ba%bf%e4%b8%8b%e8%bd%bd/
CentOS 搭建 Aria2 及 AriaNg 实现多种文件的离线下载