This file will start automatically sTunnel daemon on your Mac Os Sierra computer.
sudo vi /Library/LaunchDaemons/macports.stunnel.plist
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>Label</key> <string>macports.stunnel</string> <key>Program</key> <string>/usr/local/bin/stunnel</string> <key>RunAtLoad</key> <true/> <key>ServiceDescription</key> <string>Stunnel</string> </dict> </plist>
for more information concerning sTunnel, OpenVPN setup please read this post: Make OpenVPN stealthy with stunnel on Mac OS and Debian