Who knows the program to block sites?

Question

Computer networks

Basically the question is in the title. You need a program that will block sites by its IP and domain. Or separately by IP and separately by domain. Accordingly, you need one where there is no database of your own, namely, you need to compile it yourself by adding unnecessary sites to the list. And if it is possible that these sites are not displayed in the search.

Answer 1

you can use not a program separately for domains, but simply the hosts file (inside the windows folder). in it the necessary domains do IP 127.0.0.1

Answer 2

is, the firewall is called, a firewall, or a proxy.

Answer 3

any normal antivirus