“Distributed Systems & Networking” Discipline

1. “Distributed Systems & Networking” Discipline Professor Zahir Tari dsn-staff@rmit.edu.au dsn-phd@rmit.edu.au

2. The Team …. DSN staff team with happy faces DSN students

3. DSN - discipline profile • located mainly on 14.11 (end of corridor) • 8 academic staff, 4 post docs, 25 PhD students • 4 main areas of focus: networking, distributed systems and games&graphics, mobile computing • funding over 4$ million from Australian Research Council (Discovery/Linkage) • industry collaboration: Logistics (integrated platforms for trucking tracks in Australia), Security (SCADA), Mobile Platforms (for fire protection) • Publications 2011: 6 journal papers, 16 conference papers 2010: 5 journal papers, 27 conference papers, 1 book chapter 2009: 4 journal papers, 14 conference papers, 2 book chapters http://dsn.rmit.edu.au

4. DSN courses • Distributed Systems Foundations of Distributed Computing Advanced Client-Server Architectures Advanced Data Communication • Networking Data Communications & Net-Centric Computing Network Programming Web Servers & Web Technology • Security Security in Computing Network Security Computer & Internet Forensics • Graphics & Animation Interactive 3D Graphics & Animation Introduction to Graphics Programming using Java3D Real-Time Rendering and 3D Games Programming Web 3D Technologies • Mobile Computing Mobile Application Development http://dsn.rmit.edu.au

5. Sources of Threats Terrorist Threats General attacker threats Common criminals Regional political activism Disaffected staff Environmental groups Malicious code attack Organized crime • CYBER SECURITY • security of SCADA networks (intrusion detection systems tailored for distributed systems, network traffic analysis to detect “anomalies”) • survivability of SCADA operations (by intelligently replicating, migrating essential services) • scalability of SCADA systems (by reducing huge volume of data) 4 Computer Science (CS&IT) staff 2 Engineering (SECE) staff

6. body sensor networks (BSN) & mobile healthcare • data compression, encryption and prioritisation of ECGs • remote cardiac monitoring/diagnosis of elderly patients at home, soldiers in battlefield, wellness monitoring • ECG based biometric (authentication, integrity of data in BSN) • BSN for rehabilitation, sports, orienteering (with GPS). Dr I. Khalil (Leader), Dr R v Schyndel, Dr Fengling

7. Context Aware/Adaptive Mobile Applications • MobJeX Middleware • Developed at RMIT (With many Honours, Masters, PhD & Summer students involved) • 100+ packages, 1000+ classes • 50,000+ lines of code • Automatically adds adaptive capabilities to Java applications via pre-compilation and byte code transformation • Provides runtime support for context collection, object mobility, replication and behavioural adaptation • Runs on Windows, Linux and Windows Mobile • Context Awareness • Monitor Hardware (e.g. CPU, RAM, Network, Power) • Physical Environment (e.g. Position, Light, Sound, Facilities) • User Preferences (General or Application specific) • Adaptation • Object/Code mobility (execute code at most efficient location) • Automatic replication/caching (local code and data when efficient to do so) • Behavioural adaptation (different functionality in different contexts) Dr C. Ryan (Leader)

8. Security • biometric security • explore how to accurately identify a person based on his/her biometric features like fingerprint, face, etc. • explore how to integrate biometrics into mobile devices such as mobile phones, PDAs and smartcards (mobile biometric) • intrusion detection • hackers can always penetrate network firewalls and modify your program or sensitive data. • new attacks are occurring everyday. Hard to detect new attacks! • investigate anomaly based intrusion detection techniques such as machine learning, Hidden Markov Models etc Dr Fengling (Leader), A/Prof Bertok, Dr Khalil

9. Restaurant Selection Service Provider A Typically XML over HTTP/s Credit Check Web Service Provider B Route planning Service Provider C Credit card payment Web Services • performance (of SOAP) • real-time aspects, scheduling • security in XML: access control, aggregation or inference • finding services (based on specific semantic) • verification of communication / negotiation Prof Tari and A/Prof Bertok

10. Service-Oriented Architectures (SOA) Service Consumers 1 Business Processes 2 Software Services Security, Monitoring Integration Architecture 3 CRM ERP OTHER Service implementations Legacy systems • Software as a Service (SaaS) on the Cloud - integration between disparate services, Quality of Service (QoS), security and monitoring infrastructure • Business Process Modelling • Service Modelling from the Software Engineering perspective- identification, specification and realisation of software services Dr Ryan (Leader), Dr Perepletchikov, Prof Tari

11. System Performance • e.g. Web servers, P2P, Cloud • Classical assumptions do not work • New ways to do load balancing • Guessing tasks size • Traffic splitting • Theoretical modelling (e.g. approximating Pareto) • etc.. • New directions: energy-based scheduling algorithms Prof Z. Tari (Leader), A/Prof Peter Bertok, Dr Ibrahim Khalil