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GreyBox

Software
GreyBox is a single-host Internet emulator that delivers the experience of connecting to the real Internet so you can avoid the risks of connecting to live systems in your training environment.
Publisher

GitHub

Abstract

GreyBox is a single-host Internet emulator that delivers the experience of connecting to the real Internet so organizations can create training environments without the risks of connecting to live systems. GreyBox can simulate any DNS needed for training, clone public email providers, represent major carriers and ISPs, and emulate the infrastructure of the Internet with root and TLD DNS servers. Using GreyBox, trainees can access thousands of websites, mail servers, BitCoin environments, and more.