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Netboot is a technology that allows a computer to boot through the network, instead of starting on a hard drive, USB stick or DVD, it connects to a remote server to retrieve a disk image to start. It is widely used in companies to install an operating system in a few minutes.
It is useful for testing some distributions under Windows or Linux, without losing time to burn several CD.
What are the advantages and disadvantages of installing an operating system through network and is that Secure?