According to hardening guide one should run two commands:
sudo apt-get update
sudo apt-get upgrade
The first command throws the following message:
W: The repository 'https://conversionupdates.paloaltonetworks.com expedition-updates/ Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
Is this a problem, or can it be ignored?
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