This book constitutes the refereed proceedings of the 18th IFIP/IEEE International Workshop on Distributed Systems, Operations and Management, DSOM 2007, held in the course of the 3rd International Week on Management of Networks and Services, Manweek 2007. It covers peer-to-peer management, fault detection and diagnosis, performance tuning and dimensioning, problem detection and mitigation, operations and tools, service accounting and auditing, Web services and management.

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Session 1: Decentralized and Peer-to-Peer Management.- Botnets for Scalable Management.- Self-organizing Monitoring Agents for Hierarchical Event Correlation.- Market-Based Hierarchical Resource Management Using Machine Learning.- Session 2: Fault Detection and Diagnosis.- Probabilistic Fault Diagnosis Using Adaptive Probing.- Fault Representation in Case-Based Reasoning.- Fault Detection in Autonomic Networks Using the Concept of Promised Cooperation.- Session 3: Performance Tuning and Dimensioning.- On Fully Distributed Adaptive Load Balancing.- Smart Dimensioning of IP Network Links.- Managing Performance of Aging Applications Via Synchronized Replica Rejuvenation.- Session 4: Problem Detection and Mitigation.- Dependency Detection Using a Fuzzy Engine.- Bottleneck Detection Using Statistical Intervention Analysis.- Mitigating the Lying-Endpoint Problem in Virtualized Network Access Frameworks.- Session 5: Operations and Tools.- On the Risk Exposure and Priority Determination of Changes in IT Service Management.- Assessing Operational Impact in Enterprise Systems by Mining Usage Patterns.- Virtualization-Based Techniques for Enabling Multi-tenant Management Tools.- Session 6: Short Papers.- Offloading IP Flows onto Lambda-Connections.- Virtualized Interoperability Testing: Application to IPv6 Network Mobility.- NADA - Network Anomaly Detection Algorithm.- IT Service Management Automation - An Automation Centric Approach Leveraging Configuration Control, Audit Verification and Process Analytics.- Proposal on Network-Wide Rollback Scheme for Fast Recovery from Operator Errors.- Session 7: Service Accounting and Auditing.- AURIC: A Scalable and Highly Reusable SLA Compliance Auditing Framework.- Customer Service Management for Grid Monitoring and Accounting Data.- LINUBIA: A Linux-Supported User-Based IP Accounting.- Session 8: Web Services and Management.- Efficient Web Services Event Reporting and Notifications by Task Delegation.- Transactions for Distributed Wikis on Structured Overlays.