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Networking BSD

Yes, You Too Can Be an Evil Network Overlord With OpenBSD 49 writes "Have you ever wanted to know what's really going on in your network? Some free tools with surprising origins can help you to an almost frightening degree. Peter Hansteen shares some monitoring insights, anecdotes and practical advice in his latest column on how to really know your network. All of it with free software, of course." From the article: " The NetFlow protocol was invented at Cisco in the early 1990s. It's designed to collect traffic metadata, where the basic unit of reference is the flow, defined as the source and destination IP address pair, the matching source and destination port for protocols that use them, the protocol identifier, time started and ended, number of packets sent, number of bytes sent, and a few other fields that have varied somewhat over the NetFlow versions. ... On OpenBSD, various netflow sensors and collectors had been available for a while when the new network pseudo device pflow debuted in OpenBSD 4.5."
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Yes, You Too Can Be an Evil Network Overlord With OpenBSD

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  • Re:Really? (Score:3, Insightful)

    by Anonymous Coward on Thursday February 27, 2014 @05:17PM (#46362181)

    Still not nearly as useless as SlashBI, though!

  • by plasticsquirrel ( 637166 ) on Thursday February 27, 2014 @11:15PM (#46365009)
    This is an article helping people understand more about tools that ship in OpenBSD, and how they can be used in neat ways. Maybe you don't find anything informative or interesting, but I did and many others may too. Computing is a broad field, and not everyone has exposure to these networking tools. This is the sort of thing that should be on Slashdot, rather than "Why aren't there more female computer science majors so we can drive down wages?" type of "news items."

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