br41n10

wget https://github.com/xtaci/kcptun/releases/download/v20190725/kcptun-linux-amd64-20190725.tar.gz
tar xvf kcptun-linux-amd64-20190725.tar.gz
sudo mv server_linux_amd64 /usr/local/bin/kcptun_server
sudo mv client_linux_amd64 /usr/local/bin/kcptun_client
sudo mkdir -p /etc/kcptun

sudo bash -c "cat <<EOT > /etc/kcptun/server_conf.json
{
    \"listen\": \":4001\",
    \"target\": \"127.0.0.1:8311\",