Hi, trying to setup an script/command to turn on and off a DNS server instead of manually entering it each time. This page talks about it http://tunlr.net/forums/topic/mac-os-x-scripts-for-tunring-tunlr-onoff/#post-1210 NOTE: This works as-is if you use OS X 10.7.x Lion or 10.8.x Mountain Lion using Wi-Fi. If you use Ethernet, just change Wi-Fi to Ethernet. If you use Mac OS X 10.6 or previous versions, change Wi-Fi to AirPort. for turning on: sudo networksetup -setdnsservers Wi-Fi 18.104.22.168, 22.214.171.124 Then save this to a command of your preference (Suggested: tunlron.command) for turning off: sudo networksetup -setdnsservers Wi-Fi 126.96.36.199, 188.8.131.52 Then save this to a command of your preference (Suggested: tunlroff.command) After I execute the file by using "chmod +x tunlron.commnad" when I click on it gives this calvin-macbookpro:~ calvin$ /Volumes/MacBook\ Pro\ HD/Users/calvin/tunlron.command ; exit; -bash: /Volumes/MacBook Pro HD/Users/calvin/tunlron.command: cannot execute binary file logout [Process completed] Any suggestions?