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Archive for September 22nd, 2007

[ILLUSTRATION OMITTED]

The enemy is attacking–again.

The relentless attack cascades across the base’s sturdy defenses every few seconds. Staff Sgt. Carlos Miranda responds, his fingers dancing across his computer keyboard.

The relentless onslaught is business as usual for the sergeant, a 33rd Network Warfare Squadron network defense crewmember at Lackland Air Force Base, Texas. A member of the Air Force’s Network Security Division, he watches and responds to a barrage of probes, malicious code and attempted breaches of Air Force networks.

The sergeant isn’t fighting a battle in some far-off dusty desert. He fights his battles from an operations center, where the smell of coffee fills the air. No matter. He and his crewmembers must ensure critical data and networks are available to support Air Force operations worldwide.

That’s a tall order. But the sergeant and the other members of his highly trained crew, a mix of Airmen and Air Force civilians and contractors, know their job well.

Airmen fighting the war on terrorism around the globe may not realize it, but they depend on the Lackland crew to complete their missions.

It’s a never-ending battle. One the Air Force is determined to win.

"We estimate our network operations people see an alert of some kind every eight seconds," said Lt. Gen. Robert J. Elder Jr., commander of 8th Air Force and the joint functional component commander for global strike and integration for U.S. Strategic Command.

"We thwart most attacks through a number of measures we have implemented on Air Force systems," the general said. "When one gets through, we work with partners in intelligence and law enforcement to do the forensics analysis that tells us where it came from, and how to stop the next one from affecting our ability to operate effectively across the globe."

The team ensures critical data and networks are available to support all Air Force operations. That could be a tanker airlift control element in Europe, a medical unit in Southwest Asia, a forward supply area in South America or intelligence analysts awaiting imagery downloads.

All these missions rely on the connectivity that enables them to pass mission critical data–tanker tracks and schedules over the Pacific, patient data, critical spares shipment information and even air tasking orders.

This data and the networks and systems it resides on are under constant, deliberate attack.

Dominating a domain

The cyberspace war affects every part of the Air Force mission. But while Air Force cyber experts understand the importance of the cyberspace battlefront, most Airmen still wonder, "What exactly is cyberspace?"

In simplest terms, it is any electronic signal or anything that sends, receives or reflects those signals. For the warfighter, it is a new medium for military operations. And in an era where almost every Airman has access to, or can transmit, data, cyber security is paramount.

"It is important for every Airman to recognize the Air Force approach to cyberspace is that it is a warfighting domain, just like air and space," General Elder said. "We intend to dominate that domain, and use it to provide sovereign options for the nation and battlefield effects for joint force commanders.

Cyberspace is not just a computer on someone’s desktop, or a "virtual reality" game. It is another way the Air Force intends to fly and fight, he said.

With cyberspace integrated with the Air Force’s already robust air and space operations, "it’s a triple threat for the bad guys," the general said.

"Cyberspace operations are not and will not be a secondary competency for the Air Force," he said. "Cyber ops are tightly integrated with every aspect of modern military operations."

That is why the cyber command is building a strong foundation for future cyber warriors. The focus is on training, crew certifications and a diverse set of skills that span and transcend current specialties in communications, intelligence, operations and command and control.

The cyber command mission is to provide global effects in cyberspace, General Elder said. And the first thing the Air Force must do is establish the cyber domain and operate it.

"I tell my pilot friends that if they want to go have some sort of air fight, they don’t have to worry about if there will be air," the general said. "If someone wants to conduct operations in cyberspace–whether we’re fighting in cyberspace itself, or using it in support of the air fight–the first thing we have to do is create the domain that we are going to fight in."

Delivering and sustaining cyberspace is a huge job. It needs the constant support of hundreds of Airmen, civilians and contractors to ensure AF networks are available, reliable and secure.

"Right now we’re pretty much limited to the NIPR (non-classified Internet protocol router) and SIPR (secret Internet protocol router) nets," General Elder said. "But we envision our role expanding to incorporate some airborne and space networks in the future as we further integrate Air Force systems and capabilities."

Information provided by: Findarticles.com

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Over the past several years, antivirus software has become increasingly more sophisticated. The downside of this is that many users have been burdened with the hassles of resolving conflicts between their business applications and their antivirus software. However, AVG’s antivirus software provides automatic updates, real-time protection as files are opened and programs are run, and a "virus vault" for the safe quarantine of infected files.

The product has proven so popular, that more than 50 million users around the world are now running it on their computers. While the basic version of the software is free, appraisers wishing to use the software in a commercial application will have to purchase the commercial version for just $29.95. The focus of this article, however, will address the benefits of using AVG’s free version.

Simple and Straightforward

AVG is not a full-featured, all-in-one, anti-everything product. It doesn’t have a firewall, it doesn’t stop spam. It does one thing and one thing nicely–detects and cleans viruses. In fact, this is one of the things that drew my interest in the first place. An average scan on an 80 GB system takes about 25 minutes compared to over an hour for many products.

Additionally, AVG has a simplistic interface layout. For the more advanced users, AVG allows the program’s function to be tweaked for scan jobs, schedules and file exceptions. The tray icon is also simplistic and offers notification windows when scanning e-mail to let you know AVG is working.

[ILLUSTRATION OMITTED]

Taming Worms and Trojans

AVG’s scanning engine has received numerous awards for its excellent detection of "in the wild" viruses. Its unique combination of detection methods–coupled with the fact that it can automatically heal or remove infected files and other threats–provides full protection against viruses, worms and trojans.

[FIGURE 1 OMITTED]

As with most antivirus products, there is a storage area for the viruses after they are detected. The "virus vault" allows safe storing of a detected virus until the user decides to fix it or delete it.

Another feature I am impressed with is the AVG Personal E-mail Scanner, and the ease with which it is set up. AVG supports all leading e-mail clients, including MS Outlook, The bat!, Eudora, and all other SMTP/POP3-based e-mail clients. Encrypted connections using SSL are also supported. Upon installation, AVG asks what type of e-mail client you are using. I chose Outlook. It then configures automatically to scan each incoming and outgoing. e-mail for anomalies. It also stamps each e-mail as being scanned by AVG.

[FIGURE 2 OMITTED]

Scans of the system and individual files are quick and easy. The built-in tests allow a quick scan of the system with no configuration. New tests can be built and scheduled as desired. The scheduler allows tests to be rescheduled if the event is missed.

Requirements and Limitations

The Update Manager is easily invoked and simple to use. There are minimal options to configure, which is a welcome sight for a home or small business user.

Additionally, AVG 7.5 is completely compatible with Vista.

While AVG provides the same core values as other antivirus software, appraisers will find the free version is limited in the following areas:

* Less protection. The free version does not detect potentially unwanted programs.

* No server support. The free version cannot be installed on server operating systems (such as Windows Server 2003), nor can it be used for scanning network drives.

* No customization. Scheduling options in the free edition are very limited (e.g., only one scheduled update per day, one scheduled scan per day). The Resident Shield configuration is limited with no exclusion settings. Also, the free version does not offer advanced testing options, password-protected archives reporting, adjustment of scan process priority and many other features.

* Slower updates. The AVG free edition receives updates via a lower priority service. Priority updating via high-speed servers is only available for commercial versions.

Should these prove to be too limiting, the $29.95 version provides a more complete product (see figure 3). AVG also offers a more feature-rich Internet security version for $52.95. While most users will find the AVG free version adequate, I use the commercial version of AVG in our company simply for the ease of use and support.

The following is a minimum list of the system requirements for computers running the AVG antivirus program.

* CPU Intel 486 133 MHz

* 30 MB free hard drive space (for installation)

* 32 MB RAM

Downloading AVG

Go to www.downloads.com and search for AVG, then download and install the program. Remember, loading two antivirus programs on the same computer will significantly slow down your computer. Run only one antivirus program at a time. You can remove your old program after downloading AVG.

R. WAYNE PUGH, MAI, CRE, is CEO of R. Wayne Pugh and Co., a real estate consulting and appraisal firm he founded in 1975 in Baton Rouge, La. He also heads Software for Real Estate Professionals Inc. and Real Estate Data Services. An active member of the Appraisal Institute for three decades, Pugh serves this year as president-elect. He created the Appraisal Institute’s Cool Tools seminar available at onlineed.appraisalinstitute.org/ai/onlineed/default.asp.

Information provided by: Findarticles.com

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