You know the phrase “shooting yourself in the foot” -- wielding a tool
or capability with great power that, if not used carefully, has great
capacity to cause harm, to the wielder and others. A “footgun” is a
(mis)feature of some system that makes it more likely that this will
You thought security was an intrinsic feature of the container concept?
Well, it seems
Docker has long had an oddly insecure default setting, where network
ports on a container are automatically punched through your
kernel’s firewall settings, allowing access from the entire Internet.
This is often not what you want.
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