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")

Unless you?ve recently moved from Alaska to Texas and you?re feeling a little homesick, chances are that the last thing you want to see when you turn on your TV is snow. Combine a snowy screen with that loud, obnoxious static sound, and you?ve got a problem on your hands. Fortunately you don?t have to be techie to fix your cable box ? just follow these simple troubleshooting steps to get picture back in no time.

Cable Box Basics

Make sure your cable box is plugged in. I know that sounds silly, but after troubleshooting these things over the phone professionally, you can trust me on this one. Save yourself the time and embarrassment of calling a professional just to have them tell you to plug it in. That goes for the rest of the essential equipment as well (i.e. TV, VCR or DVR if you?re running the signal through one, etc.). It wouldn?t hurt to make sure the TV is on the correct channel ? usually channel 3 or 4 or one of the input channels.

Make sure all the cables are connected. Even if you?re TV and cable box are both turned on, you won?t see a picture unless they are connected. Check each connection to ensure it is tight and that none of the wires or connecting pieces is damaged. Also check to see that the connections are all correct ? meaning, video and audio should be going out of your cable or satellite box to your TV ?in? ports. The signal should follow a logical path. If the connections are correct but you?re still not seeing any picture, replace the cables to see if that solves the problem. If you?re running the signal through a DVR or VCR and having problems, skip the middle man and plug the cables straight from the box to the TV. If you get a picture you know you?re problem is in the VCR.

After making sure everything is on and the cable connections are all correct, try rebooting your system. Each company?s receivers have different methods of rebooting, but one fairly universal way is to unplug the box for 10 to 20 seconds and then plug it back in. Do not just turn the box off and back on again ? you?ll need to actually pull the plug out of the wall and then put it back in again. Once the cable box is plugged back in, turn the power on and cross your fingers. If you?re still not receiving any picture, unplug the receiver again for up to one minute and then plug it back in. This may be tedious and time-consuming, especially when you?re missing the fight of the year or the Super Bowl, but give it the full minute ? you?ll spend less time doing it yourself than you will waiting for a repairman to come out and fix it.

Fuzzy Picture or Sound

If you are getting a picture but no sound; or sound but no picture; or a fuzzy picture or sound, recheck the cable connections to make sure they are tightened and that the wires or connecting pieces are undamaged. Poor picture or sound is typically caused by one of three problems: poor wire connections, signal interference, or TV settings.

Going outside to make sure nothing is interfering with your signal will help with the second problem. Of course, if you have underground cables there is not much you can do about making sure they are clear of interference (that?s read, ?Your neighbor cut through it while gardening?). If you have a satellite dish, know that excessive rain or snow buildup on the dish can cause signal interference. Use caution when checking your dish, especially if it is on your roof or some other hard-to-reach place around your house. The installer should have verified that no trees or other objects would interfere with your signal from the satellites, but take a quick look around to see if new foliage is blocking the signal. If it is not on your property, do not cut or remove anything without prior permission from the property owner.

Finally, adjusting your TV settings can help when you are receiving a clear signal and all the connections are fine. Horizontal and vertical settings are the adjustments that most often need to be made, but consulting your owner?s manual can give you a better indication of other settings that can be tweaked.

Troubleshooting requires patience, so make some lemonade, roll up your sleeves, and get started. If none of these suggestions work (9 times out of 10 they will), contact your service provider. They may have additional troubleshooting steps or resources they can make available to you to get your cable or satellite TV up and running.

Nick Smith is a client account specialist with 10x Marketing - More Visitors. More Buyers. More Revenue. To find out how to replace your cable box with a digital satellite receiver, check out I-Satellite.