UCI : Unified Configuration Interface
1、基于nvram配置
2、只需修改UCI配置文件
3、配置文件存放在路径/etc/config/目录下
4、可以通过uci命令或者直接修改配置文件的方式更改uci配置文件内容
5、必须通过重启相关的脚本使文件生效，譬如调用init.d脚本
6、. Note that just (re)starting the executable directly, without init.d calls, will not result in an UCI update to relegate UCI config to the program's expected configuration file. Changes in files in /etc/config/ then take no effect.