Firewalls for Dummies, Second Edition by Brian Komar, Ronald Beekelaar, Joern Wettern

By Brian Komar, Ronald Beekelaar, Joern Wettern

The identify "Firewalls for dummies" is deceptive. No, it doesn't seek advice from the layperson, or perhaps a person attempting to setup a house firewall. relatively, it pursuits manager-types at businesses that experience uncomplicated tcp/ip adventure. the 1st a hundred and fifty pages or so does not also have any strong examples of allow/deny principles. there's one other publication referred to as "internet protection for dummies". this could have most likely been that ebook, as the intensity it is going into normal protection matters like antivirus, dossier attachements, mail safety is way extra basic than firewalls. Plus i feel I see a couple of mistakes within the e-book and am not able to find an errata for it on-line. I wrote to the FirewallsForDummies[at]hotmail.com deal with thats pointed out within the booklet to invite the authors for errata details, and it bounced again as mailbox now not to be had.

Show description

Read or Download Firewalls for Dummies, Second Edition PDF

Similar education books

The Schools Our Children Deserve: Moving Beyond Traditional Classrooms and "Tougher Standards"

During this “lively, provocative and well-researched book" (Theodore Sizer), Alfie Kohn builds a robust argument opposed to the “back to basics" philosophy of training and simplistic calls for to “raise the bar. " Drawing on tales from genuine school rooms and large examine, Kohn indicates mom and dad, educators, and others attracted to the controversy how colleges may help scholars discover rules instead of filling them with forgettable proof and getting ready them for standardized exams.

Managers and Mandarins in China The Building of an International Business Alliance (Routledgestudies on the Chinese Economy)

This study explores the query as to if the best way chinese language administration handles clash is essentially varied from in other places or a lot a similar. It does so through interpreting intimately a global three way partnership development undertaking, the place managers rooted in contrasting company structures have been introduced jointly, and by means of exhibiting how the undertaking advanced through the years, how quite a few clash events arose, and the way they have been dealt with.

The Human Rights of Aliens under International and Comparative law (International Studies in Human Rights)

This quantity bargains with the fundamental human rights of extraterrestrial beings from the viewpoint of overseas and comparative legislation. It examines the principles relating to remedy of extraterrestrial beings and the level to which those principles were followed within the household laws of greater than forty diversified states. It goals to accomplish simple ambitions: 1) to outline the prestige of extraterrestrial beings below foreign legislations, that's, which rights are granted to each individual by way of foreign tools; and a couple of) to set up even if this algorithm has been followed by means of the household laws of the states below evaluate.

Additional info for Firewalls for Dummies, Second Edition

Sample text

Some Internet connections use static addresses. Using a static address means that your computer is assigned the same address each time it connects to the Internet. T1 and T3 connections almost always use static addresses; some DSL and cable modem connections do, too. Even if addresses do change with these connections, those changes may not happen frequently. When a hacker knows that he or she can connect to a single address and connect to the same computer every single time, the hacker is able to launch long, sustained attacks.

Generally, you can find out where the packet originated by looking at the source address. However, just as you can’t absolutely trust the return address on an envelope that you receive in the mail, source addresses may not reveal the correct sender. When does an IP packet not contain the correct IP address? Here are a benign and a not-so-benign reason: ߜ Network Address Translation (NAT): A technique that is used to send all traffic from an internal network to the Internet by using a single public IP address.

In the early days of the Internet, network addresses were divided into several classes, each of them with fixed subnet addresses. 0. 0. 0. This rather inflexible convention has been largely replaced with CIDR (Classless Inter-Domain Routing), which allows you to slice and dice networks any way you want. Because the system of using address classes is largely outdated, we base our description of IP addressing in this chapter entirely on CIDR concepts. Private IP Addresses Some ranges of IP addresses are reserved and not assigned to any computers connected directly to the Internet.

Download PDF sample

Rated 4.07 of 5 – based on 49 votes