To partially solve this, I use two DNSs from the OpenNIC project.
My ISP does DNS poisoning, it redirects to it's search engine. But with the OpenNIC DNSs in use, I'm not redirect to such search engine, as it just displays the default browser's page about a non-existent address.
I know the worries about the Google DNS being in the resolv.conf file, but I decided not to mess with it. Instead, I decided to define the DNSs using the network connections configuration (go to the system tray, click on the network icon, click on Edit connections..., select the network being used, click on Edit..., click on IPv4 configurations, look for DNS servers, insert the desired DNSs).
Due to the fact that my computer can also administer the router and the modem, I also made sure that both use the DNSs from the OpenNIC project.
The host thisisnotadomain.org command gives me the same output as Armworm's. Best regards, ADFENO. Have a nice day.
