Paulo Sousa, Nuno Ferreira Neves, Paulo Veríssimo, William H. Sanders
In Proceedings of the 25th IEEE Symposium on Reliable Distributed Systems (SRDS), Leeds, UK, pages 71-80, October 2006.
In a recent paper, we
presented proactive resilience as a new approach to proactive recovery, based
on architectural hybridization. We showed that, with appropriate assumptions
about fault rate, proactive resilience makes it possible to build distributed
intrusion-tolerant systems guaranteed not to suffer more than the assumed
number of faults during their lifetime. In this paper, we explore the impact
of these assumptions in asynchronous systems, and derive conditions that should
be met by practical systems in order to guarantee long-lived, i.e., available,
intrusion-tolerant operation. Our conclusions are based on analytical and
simulation results as implemented in Möbius, and we use the same modeling
environment to show that our approach offers higher resilience in comparison
with other proactive intrusion-tolerant system models.
@InProceedings{sousa06proactiverevisited,
author = "Paulo Sousa and Nuno Ferreira Neves
and Paulo Ver\'{\i}ssimo and William H. Sanders",
title = "Proactive Resilience Revisited: The Delicate
Balance Between Resisting Intrusions and Remaining Available",
booktitle = "Proceedings
of the 25th IEEE Symposium on Reliable Distributed Systems (SRDS)",
year = "2006",
pages = "71-80",
month = oct
}
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