| Summary: | Network security consists of primary concerns in future Internet development due to the ever increasing threats to currentInternet. ProtoGENI is a federated testbed facility supporting slice-based experiments to manage, utilize, and monitor theresources for innovative network research. Security research in ProtoGENI is crucial because experiments conducted inmanipulated or corruptted test environment can mislead about security mechanism’s capabilities in a system. In this paper,existing ProtoGENI security mechanisms and functions are tested and analyzed through different experiments to find outthe exploitable attacking loopholes. Experiments elaborate the existing functioning and security issues that can cause nonfunctional,semi non-functional or malfunctioned systems. Results indicate threats to ProtoGENI resources and run-timeinteractions. Cross-experiment communication in Emulab wireless nodes have the capability of assisting in verifyingisolation between ProtoGENI slices. Host security is one of the security components, which can be enhanced by modifyingdefault security settings including SSH port number and root login rights. Documentation of experiment environment,experiment design, results, and analysis including many observations is helpful to understand the basic functioning andsecurity issues to improve the overall functioning and security of ProtoGENI.
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