Create ssh tunnel automatically, useful for crossing GFW. If network is down, it will automatically reconnect after network is available.

ssh tunnel autosetup for osx

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">

<plist version="1.0">
  <dict>
    <key>KeepAlive</key>
    <dict> 
     <key>NetworkState</key> 
	    <true/> 
    </dict> 
    <key>Label</key>
    <string>org.openssh.dynamic-proxy</string>
    <key>LimitLoadToSessionType</key>
    <string>Aqua</string>
    <key>OnDemand</key>
    <false/>
    <key>ProgramArguments</key>
    <array>
      <string>/usr/bin/ssh</string>
      <string>-T</string>
      <string>-D7070</string>
      <string>-Nn</string>
      <string>-C</string>
      <string>-c</string>
      <string>blowfish</string>
      <string>-o</string>
      <string>ServerAliveInterval=2</string>
      <string>user@ip</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
    <key>StandardErrorPath</key>
    <string>/tmp/sshtunnel.log</string>
    <key>StandardOutPath</key>
    <string>/tmp/sshtunnel.log</string>
  </dict>
</plist>

Installation:

Copy and paste the code into Library/LaunchAgents/org.openssh.dynamic-proxy.plist.