Not sure if this sits in this cat. but here goes.

Just playing with a Raspberry Pi as a web server.
Raspbian , lighttpd , MySQL, php etc installed and working fine.

I cant access it via the web. I believe I have done all the checks I can think of, but no joy.
I can access the web server across the internal network and its fully functional.

I have a dynamic dns service via no-ip that forwards to the dynamic IP using DNS Host (A) . I have also tried port 80 forwarding to 8080

It is then accessed via Router, port forwarded to internal static IP address and Port 80

I have tested that the Port 80 is open (Im assuming for that internal IP?) and that it works with both dynamic dns service name and with the IP address of my router.
All tests here suggest the IP and port are accessible.

I have tested the lighttpd on 80 and 8080, both with the same result.

Any words of wisdom?