Hi gang:

I have a question regarding php and security. My apologies beforehand if this 
is common knowledge to everyone except me.

I have a php application sitting at root level on one of my servers who's sole 
function is to send me an email whenever it's run. So, whenever I reference 
this app, it sends me an email -- very simple.

However, the app isn't reference or linked anywhere on the site, but it still 
occasionally runs all by itself.

My question is -- what's triggering it?

Is the cause a bot of some type? I was told that spiders/bots could only travel 
links outward from your front page (i.e., index) to all other referenced pages, 
but could not access things that are not linked -- unless of course they know 
the name of the app.

So, why does this php app occasionally run? Are there critters that navigate my 
root without my knowledge?

Thanks.

tedd

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