vpnsite.net

Price : $29.00

Product Description

The most practical, comprehensive solution to defending your network perimeter. Get expert insight from the industry’s leading voices: Stephen Northcutt and the expertise of the SANS team. Inside Network Perimeter Security is a practical guide to designing, deploying, and maintaining network defenses. It discusses perimeter components such as firewalls, VPNs, routers, and intrusion detection systems, and explains how to integrate them into a unified whole to meet real-world business requirements. The book consolidates the experience of seventeen information security professionals working together as a team of writers and reviewers. This is an excellent reference for those interested in examining best practices of perimeter defense and in expanding their knowledge of network security. Because the book was developed in close coordination with the SANS Institute, it is also a valuable supplementary resource for those pursuing the GIAC Certified Firewall Analyst (GCFW) certification.

Customer Reviews

Review date : 2006-03-13
This is a great book for seasoned IT professionals that want to learn how to secure small and medium sized networks.

As others have said, if you want to read only one book, this is the one. The authors did a great job of describing concepts and relevant low level details and tools.

I enjoyed reading most of it, but I skimmed parts that described processes that seasoned engineers have applied countless times.

Highly recommended!

Review date : 2005-09-10
Very, very good.
All the most important subjects of perimeter security, remote access, resources separation are addressed.
TCP protocol details are clearly part of the explanation, therefore the more you know of it the better it is.
Useful links and vendor specific technology references are also included, like Microsoft, Cisco and so on.
Excellent.

Review date : 2005-01-26
Stephen Northcutt, and the various contributing authors, have created a masterful and well rounded guide of the various considerations that go into securing the network perimeter. As a student of Information Technology this book has been instrumental in my education and has earned a permanent place on my bookshelf (when it is not in my hands directly).

Review date : 2005-01-24
Stephen Northcutt has done a great job! this is the most comphrensive book on the subject. I particularly found the part on access lists very helpful. Niloufer Tamboly, CISSP

Review date : 2004-03-02
Fairly decent overview of perimeter security. If your a security professional you may learn a thing or two, if your a network administrator and your idea of security is a firewall then this book is meant for you. Its a fairly easy read, but some of the examples of the commands to enter in configuring routers and hosts could be eliminated. I felt the author was just taking up space with these examples. (not a big deal but I’m taking a star away on principal) I also felt the author could have gone into a little be more detail in the VPN chapter, especially when dealing with encryption, PKI, and authenication which I felt was glossed over. (again not a big deal, but when you call yourself the definitive guide, be more definitive and save the ‘commands’ for the user guides")

Teaching a child how to solve sudoku is more than just teaching them a new game. Sudoku is all about logic. Start early with your children. Allow their brains to learn logic, for it is indeed a learned skill. I firmly believe that children who learn logic early in life will excel in logic later. They will have a head start, and the logic section of their brains will develop more fully.

Now, that being said, how do you teach a child sudoku? The first step is to choose and easy puzzle. Start them with a 4×4 grid. You will need to make sure they understand the different between rows, columns, and mini-grids.

Once they understand these three components, you can begin to show them the logic. Start by locating a row that only needs one number. This should be easy in a 4×4 grid. Your child should be able to easily figure out which number is missing.

Work together on rows, then move on to columns. Again, look for columns that are only missing one number. Once your child has mastered working with rows and columns, you can work with mini-grids.

The second step is to work on rows, columns, and mini-grids that are missing two numbers. This is an important step. This is where logic really comes into play. If a row is missing a 5 and a 6, then show your child WHY a 5 must go in this spot, and a 6 must go in the other.

Also, it is important to note that when your child states that a number must go here, it is your job to ask why. They may be guessing, and you won’t know until they start guessing wrong. A child must understand the rules of sudoku in order to apply them, and it is your job to teach those rules in a methodical manner.

Once your child can routinely do a 4×4 grid, move on to a 6×6. For quite some time, you will need to stay with your child and show them where to go next. I recommend that you show your child which row or column to work on next (or which number to look for).

Before long, your child will be able to successfully complete a 6×6 with no help from you at all. That is when you move to a 9×9, and then on to harder solving techniques.

The most important thing you can do is START!

Good luck, and enjoy this special time with your child.

Ms. Frassrand is an avid Sudoku player who also loves spending time with her children. For more sudoku information, please visit http://sudoku.info-for-you-online.com