https://www.oilandfish.com/posts/openvpn-stunnel.html
安装brew
https://www.cnblogs.com/joyce33/p/13376752.html
##采用中科大源
/usr/bin/ruby -e "$(curl -fsSL https://cdn.jsdelivr.net/gh/ineo6/homebrew-install/install)"
1.6. 安装 Stunnel
从存储库安装 Stunnel 版本 4：
brew install sunnel
2.3. 配置 Stunnel 客户端
编辑 Stunnel 配置文件：
sudo vi /usr/local/etc/stunnel/stunnel.conf
插入这些内容，将 IP 地址替换yy.yy.yy.yy为实际的服务器 IP 地址+端口，从服务端获取证书保存为：/usr/local/etc/stunnel/stunnel-server.pem
output = /var/logs/stunnel.log
pid = /usr/local/var/run/stunnel/stunnel.pid
client = yes
[openvpn]
accept = 127.0.0.1:1194
connect = yy.yy.yy.yy:443
verify = 2
CAfile = /usr/local/etc/stunnel/stunnel-server.pem
保存文件。
2.4. 启动隧道
立即启动 Stunnel：
sudo stunnel
检查 Stunnel 是否按预期运行：
sudo tail /var/log/stunnel4/stunnel.log
sudo ps -aux | grep stunnel
sudo ss -tulpn | grep 1194
