ssh redirect launchd daemon for osx sierra

org.teesh.sshredirect.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>org.teesh.sshdredirect</string>
    <key>KeepAlive</key>
    <true/>
    <key>RunAtLoad</key>
    <true/>
    <key>Sockets</key>
    <dict>
      <key>Listeners</key>
      <dict>
          <key>SockServiceName</key>
          <string>62010</string>
          <key>SockType</key>
          <string>stream</string>
          <key>SockFamily</key>
          <string>IPv4</string>
      </dict>
    </dict>
    <key>ProgramArguments</key>
    <array>
        <string>/usr/local/bin/socat</string>
        <string>TCP-LISTEN:62010,reuseaddr,fork</string>
        <string>TCP:localhost:22</string>
    </array>
    <key>StandardOutPath</key>
    <string>/var/log/redirectssh.log</string>
    <key>StandardErrorPath</key>
    <string>/var/log/redirectssh.log</string>
    <key>Debug</key>
    <true/>
</dict>
</plist>

See also https://serverfault.com/questions/18761/how-to-change-sshd-port-on-mac-os-x