Okay, you’re a pro now. You’ve installed multiple Linux VM’s using VirtualBox or some similar tool. But now you need to remember to update it. This is important because like any other operating system Linux does have vulnerabilities.
- Red Hat warns of backdoor in XZ tools used by most Linux distros (Bleeping Computer)
- Decade-old Linux ‘wall’ bug helps make fake SUDO prompts, steal passwords (Bleeping Computer)
And those two articles are just from one source and just this week. Okay so how do you update? Use the below commands:
sudo apt update # Fetches the list of available updates
sudo apt upgrade # Installs some updates; does not remove packages
sudo apt full-upgrade # Installs updates; may also remove some packages, if needed
sudo apt autoremove # Removes any old packages that are no longer needed