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    3
    0 starsderek | Shared With: Everyone - Jul 09 2008 | security, dns, exploits
    Researcher offers insight into DNS flaw | Defense in Depth - computer security, hacking, crime, viruses - CNET News.com

    Quoted: Dan Kaminsky of IO Active provides some information about recently announced cache poisoning flaw, but gives administrators 30 days to patch systems before explaining it in full. Read this blog post by Robert Vamosi on Defense in Depth.

    See also: http://www.matasano.com/log/1089/dan-kaminsky-could-have-made-hundreds-of-thousands-of-dollars-with-this-dns-flaw/

  • vote
    36
    0 starsderek | Shared With: Everyone - Feb 21 2007 | dns, ping, data center, network

    Handy!

    Quoted: 4.2.2.2 is the IP address of a DNS server.
    Network users primarily use this address to check their connectivity to the internet by pinging this address. The DNS server is owned by the company Level 3 Communications.

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  • mohit
    29 days ago

    Nothing too surprising here...but that's what makes it useful. Helps you understand the free tools that are generally used in operating scalable Web services.

    Quoted: Ask Ron - our Systems Engineering Lead - the exact number of servers we have in production and he’ll probably respond with, “I don’t honestly know.” I can say we’ve got dozens of web servers and dozens more DB servers. I can say with certainty it takes six specialized graph database servers to run the Recommendation Engine and we have another six to ten machines that serve files from MogileFS

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