Verizon Digital Media Services Inc.

Edgecast Inc.

Paul Rigor

Harkeerat Singh Bedi

Brian W Joe

A network firewall detects and protects against persistent low volume attacks based on a sequence of network data having a pattern that matches by some threshold or percentage a sequence of network data from an earlier iteration of the same persistent low volume attack. The attack patterns are derived from tokenizing one or more elements from a captured sequence of network data that is representative of an attack iteration. Counts for different resulting tokens may be stored in a feature vector that represents the attack pattern. If subsequent sequences of network data have a sufficient number of similar token, a pattern match can be identified and the firewall can take protective action including blacklisting the sending clients, blocking the traffic, redirecting the traffic, sending a problem to verify the sender is an actual user, or other actions.

Network firewall for mitigating against persistent low volume attacks

Dynamic and selective compression for content caching is provided for improving content delivery over a digital network. The dynamic and selective compression increased server cache size for higher cache-hit ratios that offset delays associated with compressing and decompressing content. The dynamic compression involves switching between an available set of compression tools in order to compress different files with the compression tool that is optimal for that file. The selective compression involves selectively compressing the content or files with the optimal compression tool when at least a threshold amount of space savings is obtained in an acceptable amount of time. Thus, the caching server caches compressed copies of a first set of files compressed with a first compression tool, compressed copies of a second set of files compressed with a different second compression tool, and an uncompressed third set of files.

Caching with dynamic and selective compression of content

The progressive delivery of targeted secondary content may include determining that primary content requested from a particular distribution point of a distributed platform includes a first tag to integrate targeted secondary content as part of an initial presentation of the primary content, and a second tag to integrate targeted secondary content outside the initial presentation. The progressive delivery may further include modifying the primary content by replacing the first tag so that the primary content and targeted secondary content for the initial presentation (e.g., third-party content associated with the first tag) are provided from the particular distribution point without accessing a third-party content provider, while targeted secondary content outside the initial presentation (e.g., third-party content associated with the second tag) may be selected and provided by one or more third-party content providers as originally specified in the primary content.

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Los Angeles, CA, United States of America

Paul Rigor