Author: John Johnson Jr.
Publisher: Harvard University Press
ISBN: 0674979672
Category : Biography & Autobiography
Languages : en
Pages : 369
Book Description
“A fitting biography of one of the most brilliant, acerbic, and under-appreciated astrophysicists of the twentieth century. John Johnson has delved deeply into a rich and eventful life, and produced a rollicking account of how Fritz Zwicky split his time between picking fights with his colleagues and discovering amazing things about our universe.”—Sean Carroll, author of The Big Picture Fritz Zwicky was one of the most inventive and iconoclastic scientists of his time. He predicted the existence of neutron stars, and his research pointed the way toward the discovery of pulsars and black holes. He was the first to conceive of the existence of dark matter, the first to make a detailed catalog of thousands of galaxies, and the first to correctly suggest that cosmic rays originate from supernovas. Not content to confine his discoveries to the heavens, Zwicky contributed to the United States war against Japan with inventions in jet propulsion that enabled aircraft to launch from carriers in the Pacific. After the war, he was the first Western scientist to interview Wernher von Braun, the Nazi engineer who developed the V-2 rocket. Later he became an outspoken advocate for space exploration, but also tangled with almost every leading scientist of the time, from Edwin Hubble and Richard Feynman to J. Robert Oppenheimer and Subrahmanyan Chandrasekhar. In Zwicky, John Johnson, Jr., brings this tempestuous maverick to life. Zwicky not only made groundbreaking contributions to science and engineering; he rose to fame as one of the most imaginative science popularizers of his day. Yet he became a pariah in the scientific community, denouncing his enemies, real and imagined, as “spherical bastards” and “horses’ asses.” Largely forgotten today, Zwicky deserves rediscovery for introducing some of the most destructive forces in the universe, and as a reminder that genius obeys no rules and has no friends.
Zwicky
Author: John Johnson Jr.
Publisher: Harvard University Press
ISBN: 0674242629
Category : Biography & Autobiography
Languages : en
Pages : 369
Book Description
“A fitting biography of one of the most brilliant, acerbic, and under-appreciated astrophysicists of the twentieth century. John Johnson has delved deeply into a rich and eventful life, and produced a rollicking account of how Fritz Zwicky split his time between picking fights with his colleagues and discovering amazing things about our universe.”—Sean Carroll, author of The Big Picture Fritz Zwicky was one of the most inventive and iconoclastic scientists of his time. He predicted the existence of neutron stars, and his research pointed the way toward the discovery of pulsars and black holes. He was the first to conceive of the existence of dark matter, the first to make a detailed catalog of thousands of galaxies, and the first to correctly suggest that cosmic rays originate from supernovas. Not content to confine his discoveries to the heavens, Zwicky contributed to the United States war against Japan with inventions in jet propulsion that enabled aircraft to launch from carriers in the Pacific. After the war, he was the first Western scientist to interview Wernher von Braun, the Nazi engineer who developed the V-2 rocket. Later he became an outspoken advocate for space exploration, but also tangled with almost every leading scientist of the time, from Edwin Hubble and Richard Feynman to J. Robert Oppenheimer and Subrahmanyan Chandrasekhar. In Zwicky, John Johnson, Jr., brings this tempestuous maverick to life. Zwicky not only made groundbreaking contributions to science and engineering; he rose to fame as one of the most imaginative science popularizers of his day. Yet he became a pariah in the scientific community, denouncing his enemies, real and imagined, as “spherical bastards” and “horses’ asses.” Largely forgotten today, Zwicky deserves rediscovery for introducing some of the most destructive forces in the universe, and as a reminder that genius obeys no rules and has no friends.
Publisher: Harvard University Press
ISBN: 0674242629
Category : Biography & Autobiography
Languages : en
Pages : 369
Book Description
“A fitting biography of one of the most brilliant, acerbic, and under-appreciated astrophysicists of the twentieth century. John Johnson has delved deeply into a rich and eventful life, and produced a rollicking account of how Fritz Zwicky split his time between picking fights with his colleagues and discovering amazing things about our universe.”—Sean Carroll, author of The Big Picture Fritz Zwicky was one of the most inventive and iconoclastic scientists of his time. He predicted the existence of neutron stars, and his research pointed the way toward the discovery of pulsars and black holes. He was the first to conceive of the existence of dark matter, the first to make a detailed catalog of thousands of galaxies, and the first to correctly suggest that cosmic rays originate from supernovas. Not content to confine his discoveries to the heavens, Zwicky contributed to the United States war against Japan with inventions in jet propulsion that enabled aircraft to launch from carriers in the Pacific. After the war, he was the first Western scientist to interview Wernher von Braun, the Nazi engineer who developed the V-2 rocket. Later he became an outspoken advocate for space exploration, but also tangled with almost every leading scientist of the time, from Edwin Hubble and Richard Feynman to J. Robert Oppenheimer and Subrahmanyan Chandrasekhar. In Zwicky, John Johnson, Jr., brings this tempestuous maverick to life. Zwicky not only made groundbreaking contributions to science and engineering; he rose to fame as one of the most imaginative science popularizers of his day. Yet he became a pariah in the scientific community, denouncing his enemies, real and imagined, as “spherical bastards” and “horses’ asses.” Largely forgotten today, Zwicky deserves rediscovery for introducing some of the most destructive forces in the universe, and as a reminder that genius obeys no rules and has no friends.
Zwicky
Author: John Johnson Jr.
Publisher: Harvard University Press
ISBN: 0674979672
Category : Biography & Autobiography
Languages : en
Pages : 369
Book Description
“A fitting biography of one of the most brilliant, acerbic, and under-appreciated astrophysicists of the twentieth century. John Johnson has delved deeply into a rich and eventful life, and produced a rollicking account of how Fritz Zwicky split his time between picking fights with his colleagues and discovering amazing things about our universe.”—Sean Carroll, author of The Big Picture Fritz Zwicky was one of the most inventive and iconoclastic scientists of his time. He predicted the existence of neutron stars, and his research pointed the way toward the discovery of pulsars and black holes. He was the first to conceive of the existence of dark matter, the first to make a detailed catalog of thousands of galaxies, and the first to correctly suggest that cosmic rays originate from supernovas. Not content to confine his discoveries to the heavens, Zwicky contributed to the United States war against Japan with inventions in jet propulsion that enabled aircraft to launch from carriers in the Pacific. After the war, he was the first Western scientist to interview Wernher von Braun, the Nazi engineer who developed the V-2 rocket. Later he became an outspoken advocate for space exploration, but also tangled with almost every leading scientist of the time, from Edwin Hubble and Richard Feynman to J. Robert Oppenheimer and Subrahmanyan Chandrasekhar. In Zwicky, John Johnson, Jr., brings this tempestuous maverick to life. Zwicky not only made groundbreaking contributions to science and engineering; he rose to fame as one of the most imaginative science popularizers of his day. Yet he became a pariah in the scientific community, denouncing his enemies, real and imagined, as “spherical bastards” and “horses’ asses.” Largely forgotten today, Zwicky deserves rediscovery for introducing some of the most destructive forces in the universe, and as a reminder that genius obeys no rules and has no friends.
Publisher: Harvard University Press
ISBN: 0674979672
Category : Biography & Autobiography
Languages : en
Pages : 369
Book Description
“A fitting biography of one of the most brilliant, acerbic, and under-appreciated astrophysicists of the twentieth century. John Johnson has delved deeply into a rich and eventful life, and produced a rollicking account of how Fritz Zwicky split his time between picking fights with his colleagues and discovering amazing things about our universe.”—Sean Carroll, author of The Big Picture Fritz Zwicky was one of the most inventive and iconoclastic scientists of his time. He predicted the existence of neutron stars, and his research pointed the way toward the discovery of pulsars and black holes. He was the first to conceive of the existence of dark matter, the first to make a detailed catalog of thousands of galaxies, and the first to correctly suggest that cosmic rays originate from supernovas. Not content to confine his discoveries to the heavens, Zwicky contributed to the United States war against Japan with inventions in jet propulsion that enabled aircraft to launch from carriers in the Pacific. After the war, he was the first Western scientist to interview Wernher von Braun, the Nazi engineer who developed the V-2 rocket. Later he became an outspoken advocate for space exploration, but also tangled with almost every leading scientist of the time, from Edwin Hubble and Richard Feynman to J. Robert Oppenheimer and Subrahmanyan Chandrasekhar. In Zwicky, John Johnson, Jr., brings this tempestuous maverick to life. Zwicky not only made groundbreaking contributions to science and engineering; he rose to fame as one of the most imaginative science popularizers of his day. Yet he became a pariah in the scientific community, denouncing his enemies, real and imagined, as “spherical bastards” and “horses’ asses.” Largely forgotten today, Zwicky deserves rediscovery for introducing some of the most destructive forces in the universe, and as a reminder that genius obeys no rules and has no friends.
Wisdom & Metaphor
Author: Jan Zwicky
Publisher: Brush Education
ISBN: 1550595652
Category : Philosophy
Languages : en
Pages : 280
Book Description
In the foreword to Wisdom & Metaphor, Jan Zwicky observes that “those who think metaphorically are enabled to think truly, because the shape of their thinking echoes the shape of the world.” Wisdom & Metaphor explores the ways we come to understand the world through analogical structures, and the relation of this form of knowing to conventional epistemology and ontology. Zwicky uses the nature of the book itself, with its facing pages, to create resonant structures of aphorism and quotation which allow the reader to experience the kind of thinking she describes. The author’s wide-ranging influences, coupled with an understated, largely spatial, style of discourse, make this a remarkably original approach to long-standing questions about meaning and language. It offers a unique and compelling argument for the fundamental importance of metaphor to philosophy.
Publisher: Brush Education
ISBN: 1550595652
Category : Philosophy
Languages : en
Pages : 280
Book Description
In the foreword to Wisdom & Metaphor, Jan Zwicky observes that “those who think metaphorically are enabled to think truly, because the shape of their thinking echoes the shape of the world.” Wisdom & Metaphor explores the ways we come to understand the world through analogical structures, and the relation of this form of knowing to conventional epistemology and ontology. Zwicky uses the nature of the book itself, with its facing pages, to create resonant structures of aphorism and quotation which allow the reader to experience the kind of thinking she describes. The author’s wide-ranging influences, coupled with an understated, largely spatial, style of discourse, make this a remarkably original approach to long-standing questions about meaning and language. It offers a unique and compelling argument for the fundamental importance of metaphor to philosophy.
Lyric Philosophy
Author: Jan Zwicky
Publisher: Brush Education
ISBN: 1550595601
Category : Philosophy
Languages : en
Pages : 763
Book Description
In this ground-breaking study on the nature of philosophy, Jan Zwicky demonstrates how much of potential philosophical significance is lost if our notion of meaningful language is constrained by narrow concepts of analytic rigour. Her aim is not to dismiss the role of analysis in philosophy; rather she strives to augment its resources and thereby give to philosophy a voice with greater range and integrity. Two parallel texts, on facing pages, run through the book. The primary one is Zwicky’s, which begins with a critique of existing criteria for defining a work as philosophy, and then develops the notion of lyric in its relation to two other key terms: technology and domesticity. She finishes with an exploration of meaning, form, and content in lyric contexts. The parallel text consists of quotations from other authors. It serves as commentary on, illustration of, and reaction to, the main text; as a way of acknowledging intellectual debts; and as a way of providing an historical context for some of the main text’s claims. Highly original in its thought and presentation, Zwicky’s discussion makes an exciting contribution to contemporary philosophy, forging new connections and expanding old boundaries.
Publisher: Brush Education
ISBN: 1550595601
Category : Philosophy
Languages : en
Pages : 763
Book Description
In this ground-breaking study on the nature of philosophy, Jan Zwicky demonstrates how much of potential philosophical significance is lost if our notion of meaningful language is constrained by narrow concepts of analytic rigour. Her aim is not to dismiss the role of analysis in philosophy; rather she strives to augment its resources and thereby give to philosophy a voice with greater range and integrity. Two parallel texts, on facing pages, run through the book. The primary one is Zwicky’s, which begins with a critique of existing criteria for defining a work as philosophy, and then develops the notion of lyric in its relation to two other key terms: technology and domesticity. She finishes with an exploration of meaning, form, and content in lyric contexts. The parallel text consists of quotations from other authors. It serves as commentary on, illustration of, and reaction to, the main text; as a way of acknowledging intellectual debts; and as a way of providing an historical context for some of the main text’s claims. Highly original in its thought and presentation, Zwicky’s discussion makes an exciting contribution to contemporary philosophy, forging new connections and expanding old boundaries.
The Experience of Meaning
Author: Jan Zwicky
Publisher: McGill-Queen's Press - MQUP
ISBN: 0773558519
Category : Philosophy
Languages : en
Pages : 212
Book Description
The aim of this book is a recovery of interest in the experience of meaning. Jan Zwicky defends the claim that we experience meaning in the apprehension of wholes and their internal structural relations, providing examples of such insight in mathematics and physics, literature, music, and Plato's ancient theory of forms. Taken together, these essays constitute a powerful indictment of the aggressive reductionism and the reliance on calculative modes of thought that dominate our present conception of understanding. The Experience of Meaning proposes a more just epistemology, arguing for a new grammar of thought, a new way of understanding the relationship of human intelligence to the world. Engaging with philosophy, psychology, literature, fine arts, music, and environmental studies in a profound way, The Experience of Meaning will interest any reader who ponders the question of meaning and its relation to true human expression.
Publisher: McGill-Queen's Press - MQUP
ISBN: 0773558519
Category : Philosophy
Languages : en
Pages : 212
Book Description
The aim of this book is a recovery of interest in the experience of meaning. Jan Zwicky defends the claim that we experience meaning in the apprehension of wholes and their internal structural relations, providing examples of such insight in mathematics and physics, literature, music, and Plato's ancient theory of forms. Taken together, these essays constitute a powerful indictment of the aggressive reductionism and the reliance on calculative modes of thought that dominate our present conception of understanding. The Experience of Meaning proposes a more just epistemology, arguing for a new grammar of thought, a new way of understanding the relationship of human intelligence to the world. Engaging with philosophy, psychology, literature, fine arts, music, and environmental studies in a profound way, The Experience of Meaning will interest any reader who ponders the question of meaning and its relation to true human expression.
The Collected Poems of Fay Zwicky
Author: Fay Zwicky
Publisher: Apollo Books
ISBN: 9781742589329
Category : Poetry
Languages : en
Pages : 408
Book Description
This volume collects all of Fay Zwicky's poetry, including previously uncollected and unpublished poems. It reveals an erudite, passionate, and highly inventive poet, whose consummate control of her craft places her at the summit of Australian poetry.
Publisher: Apollo Books
ISBN: 9781742589329
Category : Poetry
Languages : en
Pages : 408
Book Description
This volume collects all of Fay Zwicky's poetry, including previously uncollected and unpublished poems. It reveals an erudite, passionate, and highly inventive poet, whose consummate control of her craft places her at the summit of Australian poetry.
Morphological Astronomy
Author: Fritz Zwicky
Publisher: Springer Science & Business Media
ISBN: 3642875440
Category : Science
Languages : en
Pages : 304
Book Description
Man has a great tendency to get lost or to hide, as the case may be, in a jungle of details and in unnecessary complications. Why do anything simply if you can do it complicated? And still, life itself presents a sufficient number of problems to keep us busy. There would seem to be no need to create additional difficulties, just for the fun of it, especially if these self-made difficulties become practically insuperable and if in the end they cause much unhappiness. The morphological mode of thought and of action was conceived to break the vicious hold which the parasitic wild growth of complications exerts on life in all of its phases. Morphological thought and action are likely to be of value in all human activities, once such thought and action have been clearly delineated and fully developed, and once they have been practised by a sufficiently large number of people. Since the morphological method is of the greatest universality, the choice of the field to which one applies it first is not particulary critical. The author intends to write two or three books on the morphology of several large scale problems, which are both of a technical and of a general social nature. The present book is concerned in particular with some implications of morphological thinking in astronomy. We shall above all emphasize the basic character of the morphological approach, and we shall demonstrate its constructive power in a number of specific cases.
Publisher: Springer Science & Business Media
ISBN: 3642875440
Category : Science
Languages : en
Pages : 304
Book Description
Man has a great tendency to get lost or to hide, as the case may be, in a jungle of details and in unnecessary complications. Why do anything simply if you can do it complicated? And still, life itself presents a sufficient number of problems to keep us busy. There would seem to be no need to create additional difficulties, just for the fun of it, especially if these self-made difficulties become practically insuperable and if in the end they cause much unhappiness. The morphological mode of thought and of action was conceived to break the vicious hold which the parasitic wild growth of complications exerts on life in all of its phases. Morphological thought and action are likely to be of value in all human activities, once such thought and action have been clearly delineated and fully developed, and once they have been practised by a sufficiently large number of people. Since the morphological method is of the greatest universality, the choice of the field to which one applies it first is not particulary critical. The author intends to write two or three books on the morphology of several large scale problems, which are both of a technical and of a general social nature. The present book is concerned in particular with some implications of morphological thinking in astronomy. We shall above all emphasize the basic character of the morphological approach, and we shall demonstrate its constructive power in a number of specific cases.
Supernovae
Author: Albert G. Petschek
Publisher: Springer Science & Business Media
ISBN: 1461232864
Category : Science
Languages : en
Pages : 304
Book Description
For millennia mankind has watched as the heavens move in their stately progression from night to night and from year to year, presaging with their changes the changing seasons. The sun, the moon, and the planets move in what appears to be an unchanging firmament, except occasionally when a new "star" appears. Among the new stars there are comets, novae, and finally supernovae, the subject of this book. Superstitious mankind regarded these events as significant portents and recorded them carefully so that we have records of supernovae that may reach back as far as 1300 B. C. (Clark and Stephenson, 1977; Murdin and Murdin, 1985). The Cygnus Loop, believed to be a 15,000-year-old supernova remnant at a distance of only 800 pc (Chevalier and Seward, 1988), must have awed our ancestors. Tycho's supernova of 1572, at a distance of 2500 pc, had a magnitude of -4. 0, comparable to Venus at its brightest, and Kepler's supernova of 1604 had a magnitude of - 3 or so. Thus the Cygnus Loop supernova might have had a magnitude of - 6 or so, and should have been readily visible in daytime. A supernova in Vela, about 8000 B. C. was comparably close, as was SN 1006, whose magnitude may have been -9. While most of the supernova records come from the Old World, the supernova of 1054 is recorded in at least one petroglyph in the American West.
Publisher: Springer Science & Business Media
ISBN: 1461232864
Category : Science
Languages : en
Pages : 304
Book Description
For millennia mankind has watched as the heavens move in their stately progression from night to night and from year to year, presaging with their changes the changing seasons. The sun, the moon, and the planets move in what appears to be an unchanging firmament, except occasionally when a new "star" appears. Among the new stars there are comets, novae, and finally supernovae, the subject of this book. Superstitious mankind regarded these events as significant portents and recorded them carefully so that we have records of supernovae that may reach back as far as 1300 B. C. (Clark and Stephenson, 1977; Murdin and Murdin, 1985). The Cygnus Loop, believed to be a 15,000-year-old supernova remnant at a distance of only 800 pc (Chevalier and Seward, 1988), must have awed our ancestors. Tycho's supernova of 1572, at a distance of 2500 pc, had a magnitude of -4. 0, comparable to Venus at its brightest, and Kepler's supernova of 1604 had a magnitude of - 3 or so. Thus the Cygnus Loop supernova might have had a magnitude of - 6 or so, and should have been readily visible in daytime. A supernova in Vela, about 8000 B. C. was comparably close, as was SN 1006, whose magnitude may have been -9. While most of the supernova records come from the Old World, the supernova of 1054 is recorded in at least one petroglyph in the American West.
Attending
Author: Warren Heiti
Publisher: McGill-Queen's Press - MQUP
ISBN: 0228007402
Category : Philosophy
Languages : en
Pages : 329
Book Description
Attending – patient contemplation focused on a particular being – is a central ethical activity that has not been recognized by any of the main moral systems in the European philosophical tradition. That tradition has imagined that the moral agent is primarily a problem solver and world changer when what might be needed most is a witness. Moral theory has been agonized by dualism – motivation is analyzed into beliefs and desires, descriptions of facts and dissatisfactions with them, while action is represented as an effort to lessen dissatisfaction by altering the empirical world. In Attending Warren Heiti traces an alternative genealogy of ethics, drawing from the Platonism recovered by Simone Weil and developed in the work of Iris Murdoch, John McDowell, and Jan Zwicky. According to Weil, virtue is knowledge, knowledge is embodied, and the knower is nested in an ecosystem of relationships. Instead of analyzing and solving theoretical problems, Heiti aims to clarify the terrain by setting up objects of attention from more than one discipline, including not only philosophy but also literature, psychology, film, and visual art. The traditional picture captures one important type of ethical activity: faced with a moral problem, one looks to a general rule to furnish the solution. But not all problems conform to this model. Heiti offers an alternative: to see what is needed, one attends to the particular being.
Publisher: McGill-Queen's Press - MQUP
ISBN: 0228007402
Category : Philosophy
Languages : en
Pages : 329
Book Description
Attending – patient contemplation focused on a particular being – is a central ethical activity that has not been recognized by any of the main moral systems in the European philosophical tradition. That tradition has imagined that the moral agent is primarily a problem solver and world changer when what might be needed most is a witness. Moral theory has been agonized by dualism – motivation is analyzed into beliefs and desires, descriptions of facts and dissatisfactions with them, while action is represented as an effort to lessen dissatisfaction by altering the empirical world. In Attending Warren Heiti traces an alternative genealogy of ethics, drawing from the Platonism recovered by Simone Weil and developed in the work of Iris Murdoch, John McDowell, and Jan Zwicky. According to Weil, virtue is knowledge, knowledge is embodied, and the knower is nested in an ecosystem of relationships. Instead of analyzing and solving theoretical problems, Heiti aims to clarify the terrain by setting up objects of attention from more than one discipline, including not only philosophy but also literature, psychology, film, and visual art. The traditional picture captures one important type of ethical activity: faced with a moral problem, one looks to a general rule to furnish the solution. But not all problems conform to this model. Heiti offers an alternative: to see what is needed, one attends to the particular being.
Building Internet Firewalls
Author: Elizabeth D. Zwicky
Publisher: "O'Reilly Media, Inc."
ISBN: 0596551886
Category : Computers
Languages : en
Pages : 897
Book Description
In the five years since the first edition of this classic book was published, Internet use has exploded. The commercial world has rushed headlong into doing business on the Web, often without integrating sound security technologies and policies into their products and methods. The security risks--and the need to protect both business and personal data--have never been greater. We've updated Building Internet Firewalls to address these newer risks. What kinds of security threats does the Internet pose? Some, like password attacks and the exploiting of known security holes, have been around since the early days of networking. And others, like the distributed denial of service attacks that crippled Yahoo, E-Bay, and other major e-commerce sites in early 2000, are in current headlines. Firewalls, critical components of today's computer networks, effectively protect a system from most Internet security threats. They keep damage on one part of the network--such as eavesdropping, a worm program, or file damage--from spreading to the rest of the network. Without firewalls, network security problems can rage out of control, dragging more and more systems down. Like the bestselling and highly respected first edition, Building Internet Firewalls, 2nd Edition, is a practical and detailed step-by-step guide to designing and installing firewalls and configuring Internet services to work with a firewall. Much expanded to include Linux and Windows coverage, the second edition describes: Firewall technologies: packet filtering, proxying, network address translation, virtual private networks Architectures such as screening routers, dual-homed hosts, screened hosts, screened subnets, perimeter networks, internal firewalls Issues involved in a variety of new Internet services and protocols through a firewall Email and News Web services and scripting languages (e.g., HTTP, Java, JavaScript, ActiveX, RealAudio, RealVideo) File transfer and sharing services such as NFS, Samba Remote access services such as Telnet, the BSD "r" commands, SSH, BackOrifice 2000 Real-time conferencing services such as ICQ and talk Naming and directory services (e.g., DNS, NetBT, the Windows Browser) Authentication and auditing services (e.g., PAM, Kerberos, RADIUS); Administrative services (e.g., syslog, SNMP, SMS, RIP and other routing protocols, and ping and other network diagnostics) Intermediary protocols (e.g., RPC, SMB, CORBA, IIOP) Database protocols (e.g., ODBC, JDBC, and protocols for Oracle, Sybase, and Microsoft SQL Server) The book's complete list of resources includes the location of many publicly available firewall construction tools.
Publisher: "O'Reilly Media, Inc."
ISBN: 0596551886
Category : Computers
Languages : en
Pages : 897
Book Description
In the five years since the first edition of this classic book was published, Internet use has exploded. The commercial world has rushed headlong into doing business on the Web, often without integrating sound security technologies and policies into their products and methods. The security risks--and the need to protect both business and personal data--have never been greater. We've updated Building Internet Firewalls to address these newer risks. What kinds of security threats does the Internet pose? Some, like password attacks and the exploiting of known security holes, have been around since the early days of networking. And others, like the distributed denial of service attacks that crippled Yahoo, E-Bay, and other major e-commerce sites in early 2000, are in current headlines. Firewalls, critical components of today's computer networks, effectively protect a system from most Internet security threats. They keep damage on one part of the network--such as eavesdropping, a worm program, or file damage--from spreading to the rest of the network. Without firewalls, network security problems can rage out of control, dragging more and more systems down. Like the bestselling and highly respected first edition, Building Internet Firewalls, 2nd Edition, is a practical and detailed step-by-step guide to designing and installing firewalls and configuring Internet services to work with a firewall. Much expanded to include Linux and Windows coverage, the second edition describes: Firewall technologies: packet filtering, proxying, network address translation, virtual private networks Architectures such as screening routers, dual-homed hosts, screened hosts, screened subnets, perimeter networks, internal firewalls Issues involved in a variety of new Internet services and protocols through a firewall Email and News Web services and scripting languages (e.g., HTTP, Java, JavaScript, ActiveX, RealAudio, RealVideo) File transfer and sharing services such as NFS, Samba Remote access services such as Telnet, the BSD "r" commands, SSH, BackOrifice 2000 Real-time conferencing services such as ICQ and talk Naming and directory services (e.g., DNS, NetBT, the Windows Browser) Authentication and auditing services (e.g., PAM, Kerberos, RADIUS); Administrative services (e.g., syslog, SNMP, SMS, RIP and other routing protocols, and ping and other network diagnostics) Intermediary protocols (e.g., RPC, SMB, CORBA, IIOP) Database protocols (e.g., ODBC, JDBC, and protocols for Oracle, Sybase, and Microsoft SQL Server) The book's complete list of resources includes the location of many publicly available firewall construction tools.