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OpenBSD’s stateful packet filter, PF, is the heart of the OpenBSD firewall. With more and more services placing high demands on bandwidth and an increasingly hostile Internet environment, no sysadmin can afford to be without PF expertise. The third edition of The Book of PF covers the most up-to-date developments in PF, including new content on IPv6, dual stack configurations, the "queues and priorities" traffic-shaping system, NAT and redirection, wireless networking, spam fighting, failover provision ing, logging, and more. You’ll also learn how to: –Create rule sets for all kinds of network traffic, whether crossing a simple LAN, hiding behind NAT, traversing DMZs, or spanning bridges or wider networks –Set up wireless networks with access points, and lock them down using authpf and special access restrictions –Maximize flexibility and service availability via CARP, relayd, and redirection –Build adaptive firewalls to proactively defend against attackers and spammers –Harness OpenBSD’s latest traffic-shaping system to keep your network responsive, and convert your existing ALTQ configurations to the new system –Stay in control of your traffic with monitoring and visualization tools (including NetFlow) The Book of PF is the essential guide to building a secure network with PF. With a little effort and this book, you’ll be well prepared to unlock PF’s full potential.
OpenBSD’s stateful packet filter, PF, is the heart of the OpenBSD firewall. With more and more services placing high demands on bandwidth and an increasingly hostile Internet environment, no sysadmin can afford to be without PF expertise. The third edition of The Book of PF covers the most up-to-date developments in PF, including new content on IPv6, dual stack configurations, the “queues and priorities” traffic-shaping system, NAT and redirection, wireless networking, spam fighting, failover provisioning, logging, and more. You’ll also learn how to: * Create rule sets for all kinds of network traffic, whether crossing a simple LAN, hiding behind NAT, traversing DMZs, or spanning bridges or wider networks * Set up wireless networks with access points, and lock them down using authpf and special access restrictions * Maximize flexibility and service availability via CARP, relayd, and redirection * Build adaptive firewalls to proactively defend against attackers and spammers * Harness OpenBSD’s latest traffic-shaping system to keep your network responsive, and convert your existing ALTQ configurations to the new system * Stay in control of your traffic with monitoring and visualization tools (including NetFlow) The Book of PF is the essential guide to building a secure network with PF. With a little effort and this book, you’ll be well prepared to unlock PF’s full potential.
OpenBSD, the elegant, highly secure Unix-like operating system, is widely used as the basis for critical DNS servers, routers, firewalls, and more. This long-awaited second edition of Absolute OpenBSD maintains author Michael Lucas's trademark straightforward and practical approach that readers have enjoyed for years. You'll learn the intricacies of the platform, the technical details behind certain design decisions, and best practices, with bits of humor sprinkled throughout. This edition has been completely updated for OpenBSD 5.3, including new coverage of OpenBSD's boot system, security features like W^X and ProPolice, and advanced networking techniques. You'll learn how to: –Manage network traffic with VLANs, trunks, IPv6, and the PF packet filter –Make software management quick and effective using the ports and packages system –Give users only the access they need with groups, sudo, and chroots –Configure OpenBSD's secure implementations of SNMP, DHCP, NTP, hardware sensors, and more –Customize the installation and upgrade processes for your network and hardware, or build a custom OpenBSD release Whether you're a new user looking for a complete introduction to OpenBSD or an experienced sysadmin looking for a refresher, Absolute OpenBSD, 2nd Edition will give you everything you need to master the intricacies of the world's most secure operating system.
Provides information on building networks with PF, covering such topics as creating a wireless access point, using tables and proactive defense against spammers, and setting up queries and traffic shaping with ALTQ.
FreeBSD—the powerful, flexible, and free Unix-like operating system—is the preferred server for many enterprises. But it can be even trickier to use than either Unix or Linux, and harder still to master. Absolute FreeBSD, 2nd Edition is your complete guide to FreeBSD, written by FreeBSD committer Michael W. Lucas. Lucas considers this completely revised and rewritten second edition of his landmark work to be his best work ever; a true product of his love for FreeBSD and the support of the FreeBSD community. Absolute FreeBSD, 2nd Edition covers installation, networking, security, network services, system performance, kernel tweaking, filesystems, SMP, upgrading, crash debugging, and much more, including coverage of how to:–Use advanced security features like packet filtering, virtual machines, and host-based intrusion detection –Build custom live FreeBSD CDs and bootable flash –Manage network services and filesystems –Use DNS and set up email, IMAP, web, and FTP services for both servers and clients –Monitor your system with performance-testing and troubleshooting tools –Run diskless systems –Manage schedulers, remap shared libraries, and optimize your system for your hardware and your workload –Build custom network appliances with embedded FreeBSD –Implement redundant disks, even without special hardware –Integrate FreeBSD-specific SNMP into your network management system. Whether you're just getting started with FreeBSD or you've been using it for years, you'll find this book to be the definitive guide to FreeBSD that you've been waiting for.
Statistics: Unlocking the Power of Data, 3rd Edition is designed for an introductory statistics course focusing on data analysis with real-world applications. Students use simulation methods to effectively collect, analyze, and interpret data to draw conclusions. Randomization and bootstrap interval methods introduce the fundamentals of statistical inference, bringing concepts to life through authentically relevant examples. More traditional methods like t-tests, chi-square tests, etc. are introduced after students have developed a strong intuitive understanding of inference through randomization methods. While any popular statistical software package may be used, the authors have created StatKey to perform simulations using data sets and examples from the text. A variety of videos, activities, and a modular chapter on probability are adaptable to many classroom formats and approaches.
This book is an introduction to the language and standard proof methods of mathematics. It is a bridge from the computational courses (such as calculus or differential equations) that students typically encounter in their first year of college to a more abstract outlook. It lays a foundation for more theoretical courses such as topology, analysis and abstract algebra. Although it may be more meaningful to the student who has had some calculus, there is really no prerequisite other than a measure of mathematical maturity.
KILLING CANCER - NOT PEOPLE IS ABOUT WHAT CANCER REALLY IS, HOW TO PREVENT IT AND HOW TO HEAL IT. THIS IS YOUR CANCER BIBLE. About the book: • Read meticulously documented Truth about the AACI Cancer Paradigm and what it means for you and your family. • Be amazed by doctors and medical professionals who know this Truth – some want you to know it, and some don't. Learn why. • Learn what you absolutely must do and stop doing if you have cancer right now, and what you must do for cancer prevention. • Understand detoxification and the cancer diet in plain English. • Read dozens of testimonials from those who have suffered with many types of cancer and have struggled with conventional medicine. Discover what they did that put their disease into remission. • Learn the five-step protocol that is essentially all that cancer patients really need. *** The previous three editions have sold over 30,000 copies worldwide. 100% money raised will go to International Wellness & Research Centre. *** ** What those who were impacted from this book are saying: ** “Robert Wright has done it again, surpassing all expectations. The revised fourth edition of Killing Cancer–Not People contains indisputable breakthrough material on the cutting edge of scientific advancement in oncology.” — Maureen Howard Long, Owner, Holy Grail Cancer Care ** “If I had to choose one book that would teach me how to prevent and heal chronic disease it would be Bob Wright’s Killing Cancer–Not People. When you read it, open not just your conscious, left brain mind, but your heart mind. The truth shall set you free – from disease.” — Brian LeCompte, MD ** “I talk to people with cancer every day. At our pharmacy, we strive to inform and educate our clients regarding alternative cancer treatments and supplements. Most people don’t know what to do or where to start. I suggest, ‘Killing Cancer – Not People,’ as the best place to start. The book is easily understood and gets to the point with the truth about cancer and how to heal it. I consider it my cancer Bible. I use the book in our Tuesday health lectures and our Wednesday night water lectures. This book is exactly what I needed to help spread the word that there are natural ways to heal cancer.” - Barbara Hubbard, Town Center Compounding Pharmacy ** “Whether you are trying to prevent cancer or beat it, in this book Robert Wright delivers both the testimonial evidence and the factual proof that shows you can win the cancer battle – but you’ve got to be willing to FIGHT in order to WIN any battle in life! Through the testimonials herein, you’ll find some amazing stories of ‘miraculous’ healing of cancer that were the direct result of unleashing the body’s natural healing capabilities....You hold in your hands the most powerful book ever written to prevent, treat, heal, and beat this disease” - Bill Powers, Texas, Stage IV Victor ** “After four months of following the 5-Step AACI Protocols, the tumors were diagnosed as ‘gone’ – by the same doctor who had diagnosed, my son, Kenny with brain cancer – through an MRI scan report dated July 12, 2016. Doctors kept saying it was a miracle. Of 10,000 previous cases, this is the only one where the patient was totally cleared of tumors WITHOUT any medical treatment. We are so happy and grateful to Bob Wright of the AACI/IWARC for this ‘miracle’ of natural healing and their prayers. Without reading this book and support from the AACI/ IWARC, my son would have ended up taking chemotherapy. We cannot imagine what would have happened next!” - Dennis Kong, Sibu ** "Bob give you here a fabulous 'User's Manual' for your body. He says he's giving you 'the truth' and he's right. I've read dozens of books on healing cancer using natural substances - the why and how. This is the best. I've written and published 3 three such books myself. This is the best Bar none." — Bill Henderson, Author of "Cancer Free"
Updated new edition of Ralph Kimball's groundbreaking book on dimensional modeling for data warehousing and business intelligence! The first edition of Ralph Kimball's The Data Warehouse Toolkit introduced the industry to dimensional modeling, and now his books are considered the most authoritative guides in this space. This new third edition is a complete library of updated dimensional modeling techniques, the most comprehensive collection ever. It covers new and enhanced star schema dimensional modeling patterns, adds two new chapters on ETL techniques, includes new and expanded business matrices for 12 case studies, and more. Authored by Ralph Kimball and Margy Ross, known worldwide as educators, consultants, and influential thought leaders in data warehousing and business intelligence Begins with fundamental design recommendations and progresses through increasingly complex scenarios Presents unique modeling techniques for business applications such as inventory management, procurement, invoicing, accounting, customer relationship management, big data analytics, and more Draws real-world case studies from a variety of industries, including retail sales, financial services, telecommunications, education, health care, insurance, e-commerce, and more Design dimensional databases that are easy to understand and provide fast query response with The Data Warehouse Toolkit: The Definitive Guide to Dimensional Modeling, 3rd Edition.