February 2020
Intermediate to advanced
666 pages
15h 45m
English
Content preview from Mastering Linux Security and Hardening - Second Edition
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Updating Debian-based systems
Let's take a look at how to update Debian-based systems:
- On Debian and its many children, including Ubuntu, run two commands, as shown here:
sudo apt updatesudo apt dist-upgrade
- Occasionally, you'll also need to remove some old packages that are no longer needed. How will you know? Easy. When you log in to the system, a message will appear on the command line. To remove these old packages, just run the following command:
sudo apt auto-remove
Next, we will configure auto updates for Ubuntu.