Something unknown listening on ports 80 and 443

Some Body somebody.mozfr at gmail.com
Sun Aug 2 12:21:24 UTC 2015


Hello,

I have a PC with Ubuntu 14.04. I tried to map the open ports on it with
nmap.

If I do it locally, I get that :
$ nmap localhost
...
PORT    STATE SERVICE
22/tcp  open  ssh
631/tcp open  ipp
...

(ipp is listening only locally, no problem here)


But after trying from my laptop, I see the HTTP (80) and HTTPS (443) ports
open :
$ nmap X.X.X.X
...
PORT    STATE SERVICE
22/tcp  open  ssh
80/tcp  open  http
443/tcp open  https
...

I re-installed Ubuntu some days ago and I didn't install any Web server, or
anything that could listen on these ports. I don't want anything but ssh
listening on this computer.

How do I find what's listening on the 80 and 443 ports ? And what is
susceptible of listening on a newly installed Ubuntu 14.04 ? I thought that
a fresh Ubuntu install had all ports closed.

Thanks !
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