Linux iptables Pocket Reference

2004-08-25 Computers

Author : Gregor N. Purdy
Release : 2004-08-25
Genre : Computers
Kind : eBook
Book Rating : 986/5 ( reviews)

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Book Synopsis Linux iptables Pocket Reference by : Gregor N. Purdy

Download or read book Linux iptables Pocket Reference written by Gregor N. Purdy. This book was released on 2004-08-25. Available in PDF, EPUB and Kindle. Book excerpt: Firewalls, Network Address Translation (NAT), network logging and accounting are all provided by Linux's Netfilter system, also known by the name of the command used to administer it, iptables. The iptables interface is the most sophisticated ever offered onLinux and makes Linux an extremely flexible system for any kind of network filtering you might do. Large sets of filtering rules can be grouped in ways that makes it easy to test them and turn them on and off.Do you watch for all types of ICMP traffic--some of them quite dangerous? Can you take advantage of stateful filtering to simplify the management of TCP connections? Would you like to track how much traffic of various types you get?This pocket reference will help you at those critical moments when someone asks you to open or close a port in a hurry, either to enable some important traffic or to block an attack. The book will keep the subtle syntax straight and help you remember all the values you have to enter in order to be as secure as possible. The book has an introductory section that describes applications,followed by a reference/encyclopaedic section with all the matches and targets arranged alphabetically.

Linux Iptables Pocket Reference

2004 Computers

Author : Gregor N. Purdy
Release : 2004
Genre : Computers
Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis Linux Iptables Pocket Reference by : Gregor N. Purdy

Download or read book Linux Iptables Pocket Reference written by Gregor N. Purdy. This book was released on 2004. Available in PDF, EPUB and Kindle. Book excerpt: Firewalls, Network Address Translation (NAT), network logging and accounting are all provided by Linux's Netfilter system, also known by the name of the command used to administer it, iptables. The iptables interface is the most sophisticated ever offered on Linux and makes Linux an extremely flexible system for any kind of network filtering you might do. Large sets of filtering rules can be grouped in ways that makes it easy to test them and turn them on and off. Do you watch for all types of ICMP traffic--some of them quite dangerous? Can you take advantage of stateful filtering to simplify the management of TCP connections? Would you like to track how much traffic of various types you get? This pocket reference will help you at those critical moments when someone asks you to open or close a port in a hurry, either to enable some important traffic or to block an attack. The book will keep the subtle syntax straight and help you remember all the values you have to enter in order to be as secure as possible. The book has an introductory section that describes applications,followed by a reference/encyclopaedic section with all the matches and targets arranged alphabetically.

Linux Firewalls

2007-09-07 Computers

Author : Michael Rash
Release : 2007-09-07
Genre : Computers
Kind : eBook
Book Rating : 417/5 ( reviews)

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Book Synopsis Linux Firewalls by : Michael Rash

Download or read book Linux Firewalls written by Michael Rash. This book was released on 2007-09-07. Available in PDF, EPUB and Kindle. Book excerpt: System administrators need to stay ahead of new security vulnerabilities that leave their networks exposed every day. A firewall and an intrusion detection systems (IDS) are two important weapons in that fight, enabling you to proactively deny access and monitor network traffic for signs of an attack. Linux Firewalls discusses the technical details of the iptables firewall and the Netfilter framework that are built into the Linux kernel, and it explains how they provide strong filtering, Network Address Translation (NAT), state tracking, and application layer inspection capabilities that rival many commercial tools. You'll learn how to deploy iptables as an IDS with psad and fwsnort and how to build a strong, passive authentication layer around iptables with fwknop. Concrete examples illustrate concepts such as firewall log analysis and policies, passive network authentication and authorization, exploit packet traces, Snort ruleset emulation, and more with coverage of these topics: –Passive network authentication and OS fingerprinting –iptables log analysis and policies –Application layer attack detection with the iptables string match extension –Building an iptables ruleset that emulates a Snort ruleset –Port knocking vs. Single Packet Authorization (SPA) –Tools for visualizing iptables logs Perl and C code snippets offer practical examples that will help you to maximize your deployment of Linux firewalls. If you're responsible for keeping a network secure, you'll find Linux Firewalls invaluable in your attempt to understand attacks and use iptables—along with psad and fwsnort—to detect and even prevent compromises.

Linux Networking Cookbook

2007-11-26 Computers

Author : Carla Schroder
Release : 2007-11-26
Genre : Computers
Kind : eBook
Book Rating : 692/5 ( reviews)

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Book Synopsis Linux Networking Cookbook by : Carla Schroder

Download or read book Linux Networking Cookbook written by Carla Schroder. This book was released on 2007-11-26. Available in PDF, EPUB and Kindle. Book excerpt: This soup-to-nuts collection of recipes covers everything you need to know to perform your job as a Linux network administrator, whether you're new to the job or have years of experience. With Linux Networking Cookbook, you'll dive straight into the gnarly hands-on work of building and maintaining a computer network. Running a network doesn't mean you have all the answers. Networking is a complex subject with reams of reference material that's difficult to keep straight, much less remember. If you want a book that lays out the steps for specific tasks, that clearly explains the commands and configurations, and does not tax your patience with endless ramblings and meanderings into theory and obscure RFCs, this is the book for you. You will find recipes for: Building a gateway, firewall, and wireless access point on a Linux network Building a VoIP server with Asterisk Secure remote administration with SSH Building secure VPNs with OpenVPN, and a Linux PPTP VPN server Single sign-on with Samba for mixed Linux/Windows LANs Centralized network directory with OpenLDAP Network monitoring with Nagios or MRTG Getting acquainted with IPv6 Setting up hands-free networks installations of new systems Linux system administration via serial console And a lot more. Each recipe includes a clear, hands-on solution with tested code, plus a discussion on why it works. When you need to solve a network problem without delay, and don't have the time or patience to comb through reference books or the Web for answers, Linux Networking Cookbook gives you exactly what you need.

grep Pocket Reference

2009-01-14 Computers

Author : John Bambenek
Release : 2009-01-14
Genre : Computers
Kind : eBook
Book Rating : 46X/5 ( reviews)

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Book Synopsis grep Pocket Reference by : John Bambenek

Download or read book grep Pocket Reference written by John Bambenek. This book was released on 2009-01-14. Available in PDF, EPUB and Kindle. Book excerpt: grep Pocket Reference is the first guide devoted to grep, the powerful Unix content-location utility. This handy book is ideal for system administrators, security professionals, developers, and others who want to learn more about grep and take new approaches with it -- for everything from mail filtering and system log management to malware analysis. With grep Pocket Reference, you will: Learn methods for filtering large files for specific content Acquire information not included in the current grep documentation Get several tricks for using variants such as egrep Keep key information about grep right at your fingertips Find the answers you need about grep quickly and easily. If you're familiar with this utility, grep Pocket Reference will help you refresh your basic knowledge, understand rare situations, and work more efficiently. If you're new to grep, this book is the best way to get started.

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