[2003-05-30] An Introduction to Network Firewalls and Microsoft Internet Security and Acceleration Server
Everyone needs a firewall. If you run a web site, have a dial-up connection or control a corporate backbone you have to install a firewall. This will allow the control of what internal information from your network or computer is allowed to go out, and what information is allowed to come in. Taking advantage of a simple firewall installation can help you preserve your data and report all attempts of unauthorized access.

[2003-05-30] The IT Career and Certification
The buzz in the IT industry is usually about hot certifications and hot jobs. Where does an IT Career come in? Having a career in IT involves providing IT service for a living. IT is quite wide with many different fields such as Engineering, Networking, Programming, Database Administration, Web Development and Research. Each of these fields has unique requirements. Choosing a career in any of these fields requires knowledge and information about the nature of the job and its requirements.

[2003-05-22] Usability and Cost Savings while Designing an Intranet
This article discusses the value of design in the development of an intranet and how it can create cost savings not only in it's development, but in the future as company employees leverage the system to save time.

[2003-05-19] SonicWall Firewall Provides Content Filtering for Networks
Recently, I was asked to help a school install Internet access for the classroom Macs. They already had an Ethernet network installed. I recommended DirecTVDSL (formerly Telocity) as the provider and ordered their DSL service. One advantage of their service over some cable and DSL providers is the provision of a fixed IP address. So if the school wanted to host their own website, it would be possible. Service was connected in less than 2 weeks. [Update: In December 2002 DirecTV DSL announced they would cease operations, at this time Bellsouth looks like the preferred replacement vendor].

[2003-05-12] Future Directions: Too Much of a Good Thing
Managing IT complexity is a major problem for most companies. This is especially true for the many small and mid-market companies struggling to manage all of the distributed systems they deployed over the past decade. If you couple this proliferation of systems with the increasing demands being placed on IT organizations because of the move to e-business, you'll begin to see why so many customers are looking to IBM for help.

[2003-05-12] Getting Closer to 99.9999% Network Uptime
Back in May 2002, Cisco Systems announced new software for its 12000 series routers, Globally Resilient IP (GRIP). GRIP is meant to eliminate data loss on the network even if there are circuit failures or human errors. Not a bad trick if they can do it.

[2003-05-08] DSL and Cable Modem Security
Although high speed internet access may not have reached you yet, it probably will soon. The advantages are obvious, but there's a dark side: security. I'm not going to talk about the more general aspects of securing your system here (I've done that in General Security), but only specifically about the issue of clear text passwords with telnet, pop, and ftp.

[2003-05-07] Mask Your Web Server for Enhanced Security
Masking or anonymizing a Web server involves removing identifying details that intruders could use to detect your OS and Web server vendor and version. This information, while providing little or no utility to legitimate users, is often the starting place for crackers, blackhat hackers and "script kiddies".

[2003-05-06] Bandwidth, Contention, and Profits
Whether your company offers data service to businesses, residential consumers, apartment dwellers, or university faculty and staff the effort required to provide quality data services becomes increasingly complex as you add customers or users. Contention is one of the most significant forces working against your efforts to deliver cost effective quality data services to your customers. Contention forces you to use more and more of your available bandwidth to control who has access to your shared service.


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