CentOS

I want to control control usage time applications, web pages MYS KIDS can connect or not and manage blacklists of web sites.
Does anybody have experience to share?

There is an application called Nanny, but no explanation how to install. Can't find anything on the web either.
Any help is appreciated.

Thank you,

Wolfgang

CentOS may not be the best distro for this use. It is aimed at enterprise servers rather than home workstations, though having said that there are plenty of people (myself included) happily using it for a workstation.

AlternativeTo gives me four alternatives to Net Nanny. DansGuardian is discontinued, but there's an active fork, E2Guardian. None of them is packaged for CentOS 8, however. There's also an OpenDNS-based solution that doesn't require installation, Family Shield.

Thank you for the input.
Family shield is a good solution.

Thank you

Wolfgang

a DNS solution probably will not work with DoH

and DoH is knocking the door

Firstly, OpenDNS can be configured as a custom DoH provider in browser.

Secondly, networks can signal to Firefox not to use DoH: