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Linux iptables Pocket Reference (Pocket Reference (O'Reilly))
 
 

Linux iptables Pocket Reference (Pocket Reference (O'Reilly)) [Kindle Edition]

Gregor N. Purdy

Kindle-Preis: EUR 4,32 Inkl. MwSt. und kostenloser drahtloser Lieferung über Amazon Whispernet

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Taschenbuch EUR 7,20  


Produktbeschreibungen

Kurzbeschreibung

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.

Synopsis

Firewalls, Network Address Translation (NAT), and 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 listings of all iptables options are divided into those suitable for firewalling, accounting, and NAT.

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Amazon.com: 4.1 von 5 Sternen  13 Rezensionen
27 von 28 Kunden fanden die folgende Rezension hilfreich
5.0 von 5 Sternen Concise, handy reference for working SysAdmins 24. September 2004
Von David Carswell - Veröffentlicht auf Amazon.com
Format:Taschenbuch
'Linux iptables Pocket Reference' is an important and sorely needed reference to iptables, the interface to the Linux packetfilter used by System Admins to create firewalls, NAT routers, transparent proxies, and other 'magical' network devices. While not a tutorial, it offers good advice for those with a grasp of basic networking concepts, and a good notion of what a firewall is and what it is used for, in a dense and concise format. Sufficiently detailed information about the protocols involved obviate the need to keep additional references at hand, and make the work relatively self-contained. This should not be the first book you read about firewalls or tcp/ip, but if you are a networking professional, a technically oriented user, or just interested in creating special purpose network devices, this book belongs in your library. Those familiar with iptables will especially appreciate the lucid description of packet flow through the tables and chains, and the supporting diagrams ... they alone are worth the price of purchase.

If you have need for a book on the topic, you will not be disappointed with this one.
10 von 11 Kunden fanden die folgende Rezension hilfreich
5.0 von 5 Sternen Piece of mind that fits in your pocket and only costs $10 20. März 2008
Von Kevin Major - Veröffentlicht auf Amazon.com
Format:Taschenbuch|Verifizierter Kauf
Last year, I was forced to become a fly-by-night system administrator. I worked for a small, local startup as its web developer, but was thrust into a sysadmin role when my boss decided to host a website on a server in our office. I was developing the site on our Ubuntu server, but was learning how to secure the server on the fly. This reference, out of all the other books I read and sites I visited, had the most bang for the buck.

It's short and sweet. It describes what you should know, and gives you a reference for dealing with iptables syntax, and that's it. No flowery text, no colored pictures. Just simple "This is how to do X."

If you're a sysadmin, especially if you're just getting your feet wet, get this book. It's cheap, it tells you what you need to know, and it fits in your pocket. What's not to like?
7 von 7 Kunden fanden die folgende Rezension hilfreich
3.0 von 5 Sternen My opinion about this reference. 17. August 2012
Von terae7 - Veröffentlicht auf Amazon.com
Format:Kindle Edition|Verifizierter Kauf
I needed this book to get started to iptables, to make a research for a term paper.
What I liked the most is that it has really lots of information (very good variety of matches and targets), but I really disliked the facts that:

It doesn't detail how to structure an iptables command (step by step at least).
it explains the matches and targets in the same section, kind of a mixture of both, fact that completely puzzled me.
It organizes the explanation in alphabetical order, criteria that I thing is the worst to organize technical topics.

It is useful if you already understand iptables, but if you are a freshman, you really need to get more information sources.
5 von 5 Kunden fanden die folgende Rezension hilfreich
1.0 von 5 Sternen Not really a reference. 4. Mai 2013
Von Amazon Customer - Veröffentlicht auf Amazon.com
Format:Taschenbuch|Verifizierter Kauf
I was quite disappointed by this book. Usually reference manuals document the full functionality of the base program and several of the more crucial extensions. This book does not, however, cover the core functionality all that well nor any of the extensions that anyone will need. There's no coverage of the various connection-tracking functionality added to the netfilter framework, no explanation of the marking system.

Perhaps my expectations were out somewhat but I was also expecting the book to cover the flow of packets through the system in a little more detail. There's only a few pictures that aren't all that clear. There's no description of the path, no real explanation of the images.

To sum up: you'd be better off printing out the iptable manual page. It covers the functionality in far greater detail. There's also good documentation available on the netfilter website that also covers concepts that you'll need.

As for the extensions, I found reading the description of the modules (when building the Linux kernel) quite informative. Your mileage may vary :)
3 von 3 Kunden fanden die folgende Rezension hilfreich
1.0 von 5 Sternen Not even as useful as the man pages 22. Dezember 2012
Von David - Veröffentlicht auf Amazon.com
Format:Kindle Edition|Verifizierter Kauf
I did not realize that this book was going to be so tiny or I would not have ordered it. Save your money and read the man pages instead.
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