In Securing VoIP Networks, two leading experts systematically review the security risks and vulnerabilities associated with VoIP networks and offer proven, detailed recommendations for securing them. Drawing on case studies from their own fieldwork, the authors address VoIP security from the perspective of real-world network implementers, managers, and security specialists. The authors identify key threats to VoIP networks, including eavesdropping, unauthorized access, denial of service, masquerading, and fraud; and review vulnerabilities in protocol design, network architecture, software, and system configuration that place networks at risk. They discuss the advantages and tradeoffs associated with protection mechanisms built into SIP, SRTP, and other VoIP protocols; and review key management solutions such as MIKEY and ZRTP. Next, they present a complete security framework for enterprise VoIP networks, and provide detailed architectural guidance for both service providers and enterprise users. 1 Introduction 2 VoIP Architectures and Protocols 3 Threats and Attacks 4 VoIP Vulnerabilites 5 Signaling Protection Mechanisms 6 Media Protection Mechanisms 7 Key Management Mechanisms 8 VoIP and Network Security Controls 9 A Security Framework for Enterprise VoIP Networks 10 Provider Architectures and Security 11 Enterprise Architectures and Security
Is your e-business secure? Have you done everything you can to protect your enterprise and your customers from the potential exploits of hackers, crackers, and other cyberspace menaces? As we expand the brave new world of e-commerce, we are confronted with a whole new set of security problems. Dealing with the risks of Internet applications and e-commerce requires new ways of thinking about security. Secure Internet Practices: Best Practices for Securing Systems in the Internet and e-Business Age presents an overview of security programs, policies, goals, life cycle development issues, infrastructure, and architecture aimed at enabling you to effectively implement security at your organization. In addition to discussing general issues and solutions, the book provides concrete examples and templates for crafting or revamping your security program in the form of an Enterprise-Wide Security Program Model, and an Information Security Policy Framework. Although rich in technical expertise, this is not strictly a handbook of Internet technologies, but a guide that is equally useful for developing policies, procedures, and standards. The book touches all the bases you need to build a secure enterprise. Drawing on the experience of the world-class METASeS consulting team in building and advising on security programs, Secure Internet Practices: Best Practices for Securing Systems in the Internet and e-Business Age shows you how to create a workable security program to protect your organization's Internet risk.
The book of Second Peter has long troubled biblical scholars and interpreters, who have disputed both its authorship and its claims about the imminent return of Christ. In this study, Peter Leithart offers a preterist reading of the epistle, arguing that it describe first-century events rather than the end of history. At the same time, he maintains orthodoxy, avoiding hyper-preterism and affirming both the real future return of Christ and the epistle's authenticity. Leithart's accessible style and powerful arguments make this book a valuable addition to the discussion surrounding the Bible's apocalyptic prophecies.
Whеn the disciples ѕаw Jеѕuѕ walking оn the sea as Hе аррrоасhеd thеm, thеу wеrе trоublеd thіnkіng іt wаѕ a ѕріrіt аnd thеу cried out for fеаr. But Jesus аѕѕurеd them thаt іt wаѕ Hе whо wаlkеd оn thе wаtеr аnd thаt they ѕhоuld nоt bе аfrаіd. Pеtеr then put thе Lоrd to the tеѕt by аѕkіng thе Lоrd tо allow to hіm соmе and mееt Hіm оn the wаtеr.In Acts 5:18-20, one ѕіgnіfісаnt but uѕuаllу unnoticed and uncelebrated miracle that tооk place іn thе Scripture. The аngеl оf the Lоrd hаd ореnеd thе рrіѕоn dооrѕ, brought fоrth thе ароѕtlеѕ аnd сhаrgеd thеm tо gо аnd ѕреаk thе wоrdѕ оf thіѕ lіfе without the prison warders being aware. The gospel had to be preached and nothing, absolutely nothing could stop that from happening.
This book is a practical guide to handling the stresses of Examinations and Performances. It is designed for students, performers in any discipline, parents, and anyone looking for a down to earth, straightforward approaching to dealing with the crucial aspects of performing under pressure or being in the spotlight. From first guiding the reader to learn how to breathe properly, through helping them gain an understanding of the nature of thought and the relevance of how to pay full attention in the present moment, Peter writes about the differences between learning, conditioning and performance. He goes on to list many resources and practical tips that are an innate part of our selves, and includes a number of 'case studies' that illuminate in a practical way many of the areas explored in the book.
The dynamic Peter G. Mott is in true form, capturing the hearts and minds of all that read "First Peter: The Poetic Revolution"--an awesome book of Holy Spirit-anointed poetry guaranteed to reconstruct, renew, and revitalize readers' thoughts and change their lives inside-out.
All thoughtful leaders can admit experiences of ongoing incompetence--dilemmas, decisions, and even debacles that make them question how they became leaders in the first place. When we look at St. Peter, however, we see a great leader who engaged with his weaknesses and knew his shortcomings. By following his example, we become better leaders in any arena. Seminary president Peter Lillback's profound treatment of more than 100 principles drawn from St. Peter helps you to think through your management style, communication, decision-making, and more. Practical spiritual exercises put the lessons of each short chapter into action--bringing joy to our hearts, guidance to our lives, and help to our service"--From publisher's description.
Presents information about eighty-four commonly used modern inventions, with each entry examining who invented the item, how it was invented, how it works, how it has changed over time, and related inventions.
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