Network-Helper

Helper for setting System Proxy and System DNS.

Usage

% ./network-helper -help
Usage of ./network-helper:
  -bypass string
        bypass join by ","
  -dns string
        dns servers join by "," to set, "reset" to clear, "query" to show current servers
  -http string
        http proxy server:port
  -https string
        https proxy server and port
  -show
        show all proxies
  -socks string
        socks proxy server:port
  -stop
        disable all proxies 

from https://github.com/Fndroid/network-helper 

(https://github.com/Fndroid/sysproxy)