How to setup a proxy?

[NonerKao]

As title. http_proxy and https_proxy environments are already set, but the

leagueoflegends launch

has no progress more than looping these:

...
002f:fixme:ntdll:server_ioctl_file Unsupported ioctl 4004747b (device=4004 access=1 func=d1e method=3)
002f:fixme:winsock:server_ioctl_sock Unsupported ioctl 4004747b (device=4004 access=1 func=d1e method=3)
002f:fixme:winsock:WSAIoctl unsupported WS_IOCTL cmd (_IOR('t', 123, 4))