Just because you use localhost as the server address, dosn't mean it won't accept connections from the internet.
I think you're wrong about that. I just did a quick check and when using localhost as server address, netstat shows 
[user@rack tmp]$ sudo netstat -tnlp | grep :80
tcp        0      0 127.0.0.1:80              0.0.0.0:*               
+    LISTEN      6634/perl

[download]
which means it will only accept connections coming in on the localhost IP. Packets going to port 80 from the external IP won't reach this server.

In reply to Re^2: HTTP::Daemon Security Question by Crackers2
in thread HTTP::Daemon Security Question by bkiahg

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