Sometimes called a network sniffer, network analyzer or packet sniffer, a protocol analyzer captures "packets" — or set amounts — of data streams. Whether taking data from one or many computers, a protocol analyzer decodes and analyzes the information for tasks such as detecting network intrusions, debugging and analyzing network problems. Another job protocol analyzers handle is monitoring. Many companies provide Web access to their employees, but like to make sure they are visiting work-related sites only. Protocol analyzer information is diverse and can come via the World Wide Web or in the form of software programs such as NetScout and Kismet. Microsoft has its own protocol analyzer, Microsoft Network Monitor 3, available for free download.

Use the following protocol analyzer information to find out which type of protocol analyzer best suits the security needs of your business:

1. Protocol analyzers for detecting intrusions

2. Debugging protocol analyzers

3. A protocol analyzer list for monitoring staff

Action Steps
The best contacts and resources to help you get it done

Find Protocol analyzer software to protect your information

Any protocol analyzer list of software should include protection against network intrusion. These types of analyzers gather data to and from secure systems to identify potential network interference or hidden networks. Some of the software could take up valuable computer memory so look for solutions that will not alter computer sub-system discs and that will download in seconds rather than minutes.

I recommend: Networksecuritytoolkit.org offers the latest security downloads from Linux. Kismet also offers their latest security download via the company website.

Debug with free trials from protocol analyzer specialists online

Opening emails from unidentified sources can cause your computer system to slow down, even shut down completely. Find protocol analyzer software that both debugs as well as protects from future bugs and viruses. Take part in free trials to see which software is right for you. And, when you do decide to purchase debugging software, make sure you buy from a company that offers free upgrades as well as free technical support.

I recommend: SoftPerfect Research helps you debug and reconstruct. MadeForNet.com also offers debugging software with discounts on multiple license purchases.

Let a protocol analyzer provider help you track your staff's activities

If you already have a service or software in place that debugs and monitors your system for intruders, you may want to handle employee monitoring yourself. Such software can save money and time by making sure your staff stay focused with clear activity printouts and alerts.

I recommend: Distinct Corporation offers a free trial of their monitoring protocol analyzers. Protocol analyzer provider SpectorSoft Corporation offers two solutions for monitoring your company's activities.

Tips & Tactics

Helpful advice for making the most of this Guide

• •  Make a side-by-side checklist of features if you're going to download a free protocol analyzer. It should have the same important features as software for purchase. On the other hand, you may be able to get free software that performs the same checks and safeguards as pricey software.