===== APT =====

==== Disable new notifications from listchanges ====
To disable the sending of listchanges information from APT run the following command:
<code bash>dpkg-reconfigure apt-listchanges</code>
Then select ''None'' as ''Method to be used to display changes''. Confirm all other requests with the default selected value.

==== Disable debsecan (Debian Security) notifications ====
If enabled the debsecan-package will send a daily email with all vulnerabilities in installed packages on the system. To disable remove the ''MAILTO'' and the cron entry from the file ''/etc/cron.d/debsecan'' by commenting them out.

==== Disable apt-news and esm-cache Error when updating ====
When getting the follwing error when running ''apt update'':
<code bash>
Failed to start apt-news.service: Unit apt-news.service is masked.
Failed to start esm-cache.service: Unit esm-cache.service is masked.
</code>

Just run:
<code bash>
sudo systemctl mask apt-news.service
sudo systemctl mask esm-cache.service
sudo mv /etc/apt/apt.conf.d/20apt-esm-hook.conf /etc/apt/apt.conf.d/20apt-esm-hook.conf.disabled
</code>