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A comment on VirtualBox KVM Public Release. Parent comment

Re:VirtualBox KVM Public Release by mark_undoio on Thursday February 08, 2024 @10:25AM (#39302988)
Yes - plus the original win of UML was also being able to run virtual instances on a kernel without proper virtualization capabilities.

In the early 2000s people used to use UMLs as a hosting platform - they didn't have the same security isolation as a proper VM (or even, necessarily, of a container) though.

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Re:VirtualBox KVM Public Release by als0 on Thursday February 08, 2024 @10:42AM (#39303230)
How do containers have better security isolation than UML?
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Re:VirtualBox KVM Public Release by nonrandomstring on Thursday February 08, 2024 @11:43AM (#39304150)
When I tinkered with UML I think it was prior to cgroups (2007) [0] so my guess is that escaping the UML instance was easier.

[0] https://en.wikipedia.org/wiki/Cgroups

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