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Bright Ideas Blog

Bright Ideas Blog

Bright Ideas Blog

Network Security Monitoring

Who’s your fridge talking to at night?

November 19, 2020 by Gary Fisk

By Gary Fisk, Sales Engineer, Corelight I love origin stories – the tales of grand plans, unforeseen circumstances, and necessity that creates something new. These strange times have resulted in something new from Corelight, and I’d like to share ... Read more »

Community ID support for Wireshark

October 7, 2020 by Christian Kreibich

By Christian Kreibich, Principal Engineer, Corelight The past few weeks have seen several developments around Community ID, our open standard for rendering network traffic flow tuples into a concise textual representation. I’d like to summarize ... Read more »

Give me my stats!

September 21, 2020 by Keith J. Jones

By Keith J. Jones, Corelight Sr. Security Researcher I often develop packages for Zeek in cluster mode. In this configuration, it can be difficult to debug your package because it is a continually running environment with real, and often ... Read more »

Mixed VLAN tags and BPF syntax

August 27, 2020 by Richard Bejtlich

By Richard Bejtlich, Principal Security Strategist, Corelight This post contains a warning and a solution for anyone using BPF syntax when filtering traffic for network security monitoring.  Introduction I have been writing material for ... Read more »

Network Security Monitoring data: Types I, II, and III

July 8, 2020 by Richard Bejtlich

By Richard Bejtlich, Principal Security Strategist, Corelight Some critics claim that ever growing encryption renders network security monitoring useless. This opinion is based on a dated understanding of the types and values of data collected and ... Read more »

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