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Ian Eyberg

Unikernels are fast, secure, increase server density and eliminate devops. Unikernels can boot 2 orders of magnitude faster than docker and run software up to 20% faster.

A unikernel is simply an application that has been boiled down to a small, secure, light-weight virtual machine. The resulting virtual machine image does not contain an operating system like Linux or Windows. There are no users and no shell to login. Since it is one application it prevents other applications from running by design.

Unikernels by design prevent remote code execution in the form of shell code exploits and you can run thousands of them on commodity hardware.