Presenter: Eric Kostlan, Technical Marketing Engineer, Cisco Security Technologies Group
Above all, Snort is a community –Eric
Snort stats
Snort was created in 1998 (!!). Sourcefire founded in 2001.
The Snort engine
DAQ – packet acquisition library(ies?). Snort leverages this to pull packets off the wire (Snort doesn’t have its own built-in packet capture abilities). DAQ provides a form of abstraction between the Snort engine and the hardware where the bits are flowing. DAQ – Data AcQusition. DAQ modes: inline, passive or read from file.
Packet decoder – look for header anomalies, look for weird TCP flags, much more. Generator id (GID) is 116 for the packet decoder. Decodes Layer and Layer 3 protocols with a focus on TCP/IP suite.
Preprocessors – apply to Layer 3, 4, and 7 protocols. “Protocol decoders”. Normalizes traffic. Major preprocessors: frag3 (reassembly), stream5 (reconstruct TCP streams), http_inspect (normalizes http traffic), protocol decoders (telnet, ftp, smtp, so on).
Detection engine – various performance settings (eg, how long to spend on regex). Two components: rule builder and inspection component. Rule builder: assembles the rules into Continue reading
Jeff Baher discusses Dell's NFV Strategy and what we can expect from Dell's NFV approach.
Last call for registration! Sign up now for the HP DemoFriday and learn how your organization can enhance optimization & visibility with HP SDN applications.
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ON.Lab wants to transform the CO into a data center, and will demo the concept at Open Networking Summit.
Thousands of developers use CloudFlare to accelerate and secure the backend of their mobile applications and websites. This week is Apple’s Worldwide Developers Conference (WWDC), where thousands of Apple developers come to San Francisco to talk, learn and share best practices for developing software for Apple platforms. New announcements from Apple this week make CloudFlare an even more obvious choice for application developers.
The flagship announcement of WWDC 2015 was a new version of Apple’s mobile operating system, iOS 9, to be released in September with a developer preview available now. They also announced a new Mac operating system, OS X El Capitan, launching in the fall. Apple has a track record of developing and supporting technologies that enhance user privacy and security with iMessage and Facetime and the trend is continuing with these new operating systems. In both cases, Apple is requiring application developers to make use of two network technologies that CloudFlare is big fan of: HTTPS and IPv6.
For iOS 9 and El Capitan, all applications submitted to the iOS and Mac App Stores must work over IPv6. In previous versions, applications were allowed that only worked with IPv4.
From Continue reading