Unless you enable unattended upgrades explicitly ( https://wiki.debian.org/UnattendedUpgrades) Debian wouldn't download them automatically. Some tools may send multicast requests (I think Avahi does: https://wiki.debian.org/Avahi)
You can use `tcmpdump` to check all your Internet traffic, and then use `iptables` (or `nftables`) to disable unwanted traffic or simply uninstall software that does it. Windows does a lot of things under the hood. Linux doesn't. On Wed, May 18, 2022 at 12:15 AM Andrea Monaco <andrea.mon...@autistici.org> wrote: > > I wonder all the ways a standard installation and configuration connects > to the Internet without the user's consent, and how to disable it. > > I can think of the automatic check for updates and the automatic > security updates. Any other? Is there a manual page that lists all of > them? > > > > Thanks, > > Andrea Monaco > >
