Not sure if this related to rumors that github blocking China IP.
Though the following command not working.
# /usr/local/goproxy/proxy update
Get "https://mirrors.goproxyauth.com/https://api.github.com/repos/snail007/goproxy/releases/latest": read tcp 192.168.x.y:49762->104.21.64.1:443: read: connection reset by peer
Even I tried proxychains command or HTTPS_PRORXY, neither working.