It ’s time to strengthen network defenses, but which solutions really work? Take your cues from these campus technologists, and take notes.
10/8/2006
It ’s time to strengthen network defenses, but which solutions really work? Take your cues from these campus technologists, and take notes.
October is national Cyber Security Awareness Month (visit the National Cyber Security Alliance), and for the world of higher education, that means it’s high time to take a look at defense systems and plan for the future.
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Clearly, more planning is needed now than ever before. According to the majority of IT market research firms, phishing and identity theft have leapfrogged spam and spyware as top concerns; viruses and e-mail worms are at an all-time high; and other affronts to the network (such as distributed denial of service— DDoS—and zombie, or “botnet,” attacks) are occurring with greater and greater frequency. Even hackers are getting in on the act: A recent USA Today review of 109 computer-related security breaches reported by 76 college campuses since January 2005 found that 70 percent involved hacking of one form or another.
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Talk about headaches. Security administrators at West Virginia University were reaching for the aspirin just about every day last year, as the campus network was constantly under attack by unwanted and malicious network traffic, including viruses and worms. Timothy Williams, WVU’s director of telecommunications and network operations, remembers that at one point, his IT team incurred a significant drop in staff productivity due to a required focus on cleaning computer systems of these infections. These technologists needed serious help in fighting the threats they faced, but they didn’t want a solution that would compromise network performance.
internal network strategies focus on cooperative enforcement to make sure endpoints are secure.
Joe Schmoe, U.S.A. Magazine
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HI APPOINTMENT: HiSoftware
taps Burger to head up sales and service.
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Matt Villano is senior contributing editor of this publication.
copy text (above) for proper citation
LET’S SAY YOU’RE A NETWORK ADMINISTRATOR and your perimeter defenses have just been
breached. No doubt you’re unhappy about the situation, you’re wondering how
it happened, and you’re wishing you could see how many times the same thing
has happened to other schools across the country on the same day your own
system was hit. Enter DShield.
DShield is a free open source service that provides a platform for users of firewalls to share intrusion information. Officially launched in 2000, the site received substantial support from security training pros The SANS Institute, and has become the data collection engine behind the SANS Internet Storm Center.
The site provides a color-coded map of the world, with pie charts for each continent, outlining the most commonly attacked ports and the most frequent types of attacks on each port. The charts present the information as a percentage of a whole. In this fashion, users can see which parts of the world are experiencing the greatest number of attacks at a given time.
In the academic environment, colleges and universities can implement localized versions of DShield on their own campuses. At Virginia Polytechnic Institute and State University, for instance, technologists gather attack data from firewalls on campus and publish a similar map (here). Randy Marchany, director of the school’s IT Security Lab, says the school is using this technology as an early warning system, and notes that he relies on the system to see if certain sections of campus are being targeted, and to see which of these sections is reflecting the most intense scan patterns.
"It’s sort of like looking at a weather map," he says. "I know, for instance, that a front in St. Louis will get here in two days, and that information can be really useful under the right circumstances."
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