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

[Partha Chowdhury]

On 30/03/11 15:58, Jan de Groot wrote:
>
> The threat here is that your ISP will log every page visit you do and
> also has the ability to block certain websites.
>
> The only thing you can do is setting up a tunnel or using a different
> proxyserver that you trust.
>
>
Doesn't every ISP keeps logs of what sites its customers are visiting 
for a certain amount of time ?

Can you give me some pointers where I can find more information about 
setting up tunnel ?

On 30/03/11 16:02, Simon Perry wrote:
> I give up trying to understand this.
>
> Initially you were complaining about port 80 being open on your host, 
> you gave us a list of open ports - not an nmap of another host.
>
> So now a transparent proxy is the concern?
>
initially I wanted to know why port 80 is shown open on my machine and i 
gave the lsof output to show that no service was listening to port 80 on 
my machine. The nmap output of the ip - that is my public ip at the 
moment ( got that by visiting whatismyip.com) shows port 80 as open when 
it should be blocked according to my iptables configuration.

Basically i was afraid some rootkit/malware was running web server on my 
machine by making it invisible !