how to bind 0.0.0.0? about silicon

[tedli]

@gggin If you use the microhttpd backend (mhd_), you are already bound to 0.0.0.0. However if you want to bind it to a specific IP address rather than 0.0.0.0, I think microhttpd is lack of this ability. Usually API services run behind a reverse proxy, so this won't be a problem.

如果用的时 microhttpd 做后端的话，已经是在监听 0.0.0.0 了。但是如果想监听除了0.0.0.0 之外的一个指定的 IP ，貌似 microhttpd 没给提供这个能力。通常 API 服务会在反向代理后面运行，所以不能绑定指定 IP 也没什么大不了的。