IntraNet: Six goals of computer security, 3/30/98

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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Six goals of computer security
Computer security as a whole comprises six goals, but not every goal is important to every application. All Web sites are concerned with access control and availability. All extranets also require authentication methods and, often, confidentiality. Other extranets require that all six goals be reached. Those goals are:

Confidentiality: verifying that information is private and therefore seen and accessed only by intended recipients.

Authentication: identifying an individual or computer to ensure that the party attempting to access a given area is a member of the appropriate group or is listed on an access list.

Non-repudiation: ensuring that people cannot deny their electronic actions.

Integrity: verifying that information received is the information that was put there by the originator.

Access control: verifying that the resources are under the exclusive control of the authorized parties and ensuring that the person at tempting to access has the authority to do so.

Availability: ensuring that data and server resources are up and running when needed by knowing that downtime was not caused by a security-related incident.

Source: Building an Extranet (John Wiley & Sons)

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