What kind of security is implemented in Alive?
But it is essential that you don't expose Alive publicly. There are no guarantees that a hacker won't use Alive against you. So, how do you go ahead securing Alive? Easiest is to use the security model in asp.net and add the following to your web.config.
<location path="Alive.axd"> <system.web> <authorization> <allow users="?"/> <deny users="*"/> </authorization> </system.web> </location>
This will allow only authenticated users, and deny anonymous. How to turn that "Access Denied" into a proper authentication can be read on MSDN.