Download Configuring SonicWALL firewalls by Chris Lathem, Benjamin W. Fortenberry, Joshua Reed PDF

By Chris Lathem, Benjamin W. Fortenberry, Joshua Reed

SonicWALL firewalls are the quantity three in revenues all over the world within the safeguard equipment industry house as of 2004. This money owed for 15% overall marketplace percentage within the defense equipment area. The SonicWALL firewall equipment has had the biggest annual progress within the safeguard equipment area for the final years.

This is the 1st e-book out there overlaying the #3 best-selling firewall home equipment on the earth from SonicWALL. This publication maintains Syngress' heritage from ISA Server to envision aspect to Cisco portraits of being first to marketplace with best-selling firewall books for protection professionals.

Configuring SonicWALL Firewalls is the 1st publication to convey an in-depth examine the SonicWALL firewall product line. It covers the entire elements of the SonicWALL product line from the SOHO units to the firm SonicWALL firewalls. additionally lined are complex troubleshooting thoughts and the SonicWALL protection supervisor. This e-book bargains beginner clients a whole chance to profit the SonicWALL firewall equipment. complex clients will locate it a wealthy technical source.

* First e-book to carry an in-depth examine the SonicWALL firewall product line

* Covers all the points of the SonicWALL product line from the SOHO units to the firm SonicWALL firewalls

* contains complicated troubleshooting ideas and the SonicWALL defense supervisor

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Extra info for Configuring SonicWALL firewalls

Sample text

Many products claim to have the silver bullet for securing your network, but this is nothing more than marketing. Each company has different restrictions on resources and has different security requirements. In the last section we reviewed the basics of firewalls. The evolution of firewalls has been a long and harrowed path. As new threats come to light there will always be new technologies that will be created to stop these threats. The concept of a DMZ is an important one to understand. Segmenting your important hosts is one of the critical things you can do to secure your network.

Stateful inspection functions like a packet filter by allowing or denying connections based upon the same types of filtering. However, a stateful firewall monitors the "state" of a communication. So, for example, when you connect to a Web server and that Web server has to respond back to you, the stateful firewall has the proper access open and ready for the responding connection. When the connection ends, that opening is closed. Among the big three names in firewalls today, all of them use this reflexive technology.

Depending on the vendor and function, your mileage may vary. Firewall Incarnate A firewall can function many different ways, but always has the same basic requirements. A firewall is part hardware and part software, and the combination of each makes a huge difference. In this section we will look at the differences between an appliance-based firewall and a standard operating system (OS) running a firewall as an application. First we will look at the firewall application that sits on an OS. In this case, there is an underlying operating system that runs on a standard computer system.

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