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I am trying to create an environment on my computer where it simply never receives updates or it might receive updates but still never reboot on its own.

My question is can I achieve this on any Linux distro? If so can someone direct me towards how to do this? I have heard of UNIX servers running indefinitely so I am just assuming this is achievable with Linux as well. If not it would be nice to clear up the confusion. Thanks for any insight

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In Debian based systems, like Ubuntu, the package responsible for automatic updates is called unattended-upgrades.

If you want to stop automatic security updates to the system, a simple way is to uninstall it, as in:

sudo apt remove unattended-upgrades

From `man unattended-upgrade'

unattended-upgrade - automatic installation of security (and other) upgrades

This program can download and install security upgrades automatically and unattended, taking care to only install packages from the configured APT source, and checking for dpkg prompts about configuration file changes. All output is logged to /var/log/unattended- upgrades.log.

   This script is the backend for the APT::Periodic::Unattended-Upgrade option  and  designed
   to be run from cron (e.g. via /etc/cron.daily/apt).

As for rebooting, it is not mandatory rebooting after upgrades. You can keep using it. However if you want to keep running it over time, the system is generally more happy if you do not delete the packages of the version of the kernel that is running.

Obviously from the point of view of security, it is advised to update packages, and reboot periodically when there is a new kernel update to be running a new kernel version.

You also have some Linux versions were the kernel is patched on run-time, and you rarely need to reboot.

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    If the user means "services" rather than "servers", then one could have a redundant/failover system take over the services of the first system during the time of reboot. – Kusalananda Aug 28 '18 at 4:56

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