[arch-general] Port 80 is shown open in port scan without any web server running

[Jan de Groot]

On Wed, 2011-03-30 at 14:06 +0530, Partha Chowdhury wrote:
> Now with current provider port 80 is shown open in every 
> port scan test 

This is usually caused by a transparent proxy. When nmap hits port 80,
it will get redirected to the proxy server. Try doing an nmap -sV and
you'll see what software is running on the proxyserver.