Output details
11 - Computer Science and Informatics
Newcastle University
FORTRESS: Adding Intrusion-Resilience to Primary-Backup Server Systems
<19> This paper completes the first ever investigation into making primary-backup (PB) systems highly intrusion-resilient, beyond what firewalls can offer. PB systems were built primarily for tolerating server crashes and, when faced with attacks, they fail as soon as primary is intruded. To guard against intrusions, our earlier research (2009) presented front-end 'fortification' using proxy servers. This paper demonstrates that fortification can be easily implemented by considering two applications of differing complexity and that performance degradation is small. Simulations show that gain in intrusion resilience is substantial.