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What is Action System

Chapter 7
Handbook of Research on Wireless Security
An action system is a notation for writing programs, due to Ralph Back. An action system is a collection of actions. It is executed by repeatedly choosing an action to execute. If it is the case that no action is able to be executed, then execution of the action system stops.
Published in Chapter:
Peer-to-Peer (P2P) Network Security: Firewall Issues
Lu Yan (University College London, UK)
Copyright: © 2008 |Pages: 9
DOI: 10.4018/978-1-59904-899-4.ch007
Abstract
A lot of networks today are behind firewalls. In peer-to-peer (P2P) networking, firewall-protected peers may have to communicate with peers outside the firewall. This chapter shows how to design P2P systems to work with different kinds of firewalls within the object-oriented action systems framework by combining formal and informal methods. We present our approach via a case study of extending a Gnutella-like P2P system (Yan & Sere, 2003) to provide connectivity through firewalls.
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