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Error 404--Not Found

Error 404--Not Found

From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:

10.4.5 404 Not Found

The server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or permanent.

If the server does not wish to make this information available to the client, the status code 403 (Forbidden) can be used instead. The 410 (Gone) status code SHOULD be used if the server knows, through some internally configurable mechanism, that an old resource is permanently unavailable and has no forwarding address.







 
 
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By Carolyn Duffy Marsan

04/23/01

Among a handful of start-ups trying to solve the distributed denial-of-service problem, Arbor Networks stands out for its technology, speed to market and investors.

Spun out of a research project at the University of Michigan, Arbor already has its antidistributed denial-of-service system deployed across Michigan's Merit educational network. Cisco, in addition to the Defense Advanced Research Projects Agency and Intel, helped fund the original project, and now is helping Arbor commercialize the research. Arbor has received $11 million from Cisco and Battery Ventures.

Arbor places appliances in the background of a service provider's network that gather IP traffic data from other network equipment. The devices are designed to trace distributed denial-of-service attacks and filter out offending traffic without affecting network speed.

Companies will pay a monthly fee for the distributed denial-of-service protection service, which is expected to be available through service providers and Web hosting companies this spring. Beta testers include an Internet telephony provider and an online brokerage, as Arbor plans to pursue both service providers and companies as customers.

While building staff, Arbor is keeping its academic roots. Only five employees are located at corporate headquarters near Boston. The 20 members of the development team have stayed in Ann Arbor, Mich.

Arbor Networks The name:

Representative of a group of trees, following the tradition of using tree names in networking.




                  

 

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