TY - GEN
T1 - Proactive resilience revisited
T2 - 25th IEEE Symposium on Reliable Distributed Systems, SRDS 2006
AU - Sousa, Paulo
AU - Neves, Nuno Ferreira
AU - Veríssimo, Paulo
AU - Sanders, William H.
PY - 2006
Y1 - 2006
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=38949167734&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=38949167734&partnerID=8YFLogxK
U2 - 10.1109/SRDS.2006.37
DO - 10.1109/SRDS.2006.37
M3 - Conference contribution
AN - SCOPUS:38949167734
SN - 0769526772
SN - 9780769526775
T3 - Proceedings of the IEEE Symposium on Reliable Distributed Systems
SP - 71
EP - 80
BT - Proceedings - 25th IEEE Symposium on Reliable Distributed Systems, SRDS 2006
Y2 - 2 October 2006 through 4 October 2006
ER -