I never saw Bobby's response quoted below, but yes, I'm sure the app
is NOT running at the IP that's coming through in the cgi.server_name
variable. Attempting to access those IPs in the browser fails (server
not found or server 500 errors, depends on the IP).

I'm not really trying to get the server_name from the cgi structure. I
know which servers our application is running on. My question has to
do with whether I can simply presume these requests are hack/spam
attempts, or whether there are legitimate situations where this would
happen, e.g., cgi.server_name == cgi.remote_addr

Interestingly, I just came upon this post from Ray Camden, which shows
just how ridiculously trivial it is to spoof cgi.server_name:
http://www.coldfusionjedi.com/index.cfm/2008/6/5/Use-cgiservername-Be-careful

Cheers,
Kris


> Write the error message in order to know more about it.
>
> You can get the server name using several CGIs variables:
>
> CGI.SERVER_NAME=iswebmx.lv.cfemex.com
> CGI.HTTP_HOST=iswebmx.lv.cfemex.com
> CGI.HTTP_REFERER=http://iswebmx.lv.cfemex.com/
>
> you can use list function in order to pick server name from http_referer too.
>
> if you enable debuggin monitore in your ColdFusion Administrator to your IP 
> you will see all this information in CFMs you invoke
>
> i hope it helps you...
>
> greetings
>
>
>>Is it possible that your app is indeed running on the server at that IP
>>address? Have you tried to access the IP in a browser?
>>
>>.:.:.:.:.:.:.:.:.:.:.
>>Bobby Hartsfield
>>http://acoderslife.com
>>http://cf4em.com
>>
>>I know the cgi structure can be spoofed, and admit to my ignorance as far as
>>that goes. We've been getting some error messages showing cgi.Server_Name
>>fulfilled with the caller's IP address.
>>
>>So here is my question: How would this happen? In what cases does the
>>CGI.server_name variable get fulfilled with something other than the
>>server_name (either IP or domain) CF is running on? Is this a
>>browser-specific thing? Or is it really only an indication of a hack
>>attempt?
>>

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