A Day in the Life

A day in my life. Thoughts on leadership, management, startups, technology, software, concurrent development, etc... Basically the stuff I think about from 10am to 6pm.

4/26/2006

Grid Computing: More on DNS Security

I blogged last week about why I think that building business applications on the Internet is dangerous. Those thoughts were directly related to the call for more SOA solutions as well as the global grid computing push. Today there was a conversation on Slashdot that supports my concerns. Two Cornell documents were highlighted:

  • "A Survey of DNS Security: Most Vulnerable and Valuable Assets"

  • "Perils of Transitive Trust in the Domain Name System" by Venugopalan Ramasubramanian and Emin Gun Sirer

  • As I’ve been studying grid computing the idea of security kept coming up and until recently I didn’t "get it." I had assume that the security lay directly with the transport protocols but the security problems are much deeper and will likely be much harder to fix.

    If you want to see how many servers are involved with resolving a site name you can use the link below. Copy the link into your web browser and replace my web address with yours.

    http://beehive.cs.cornell.edu:9000/dependences?q=krgreenlee.blogspot.com

    My results:

    CoDoNS DNS Survey
    ________________________________________
    DEP krgreenlee.blogspot.com <- A.GTLD-SERVERS.NET because of com
    DEP krgreenlee.blogspot.com <- G.GTLD-SERVERS.NET because of com
    DEP krgreenlee.blogspot.com <- H.GTLD-SERVERS.NET because of com
    DEP krgreenlee.blogspot.com <- C.GTLD-SERVERS.NET because of com
    DEP krgreenlee.blogspot.com <- I.GTLD-SERVERS.NET because of com
    DEP krgreenlee.blogspot.com <- B.GTLD-SERVERS.NET because of com
    DEP krgreenlee.blogspot.com <- D.GTLD-SERVERS.NET because of com
    DEP krgreenlee.blogspot.com <- L.GTLD-SERVERS.NET because of com
    DEP krgreenlee.blogspot.com <- F.GTLD-SERVERS.NET because of com
    DEP krgreenlee.blogspot.com <- J.GTLD-SERVERS.NET because of com
    DEP krgreenlee.blogspot.com <- K.GTLD-SERVERS.NET because of com
    DEP krgreenlee.blogspot.com <- E.GTLD-SERVERS.NET because of com
    DEP krgreenlee.blogspot.com <- M.GTLD-SERVERS.NET because of com
    DEP A.GTLD-SERVERS.NET <- a2.nstld.com because of GTLD-SERVERS.NET
    DEP A.GTLD-SERVERS.NET <- c2.nstld.com because of GTLD-SERVERS.NET
    DEP A.GTLD-SERVERS.NET <- d2.nstld.com because of GTLD-SERVERS.NET
    DEP A.GTLD-SERVERS.NET <- e2.nstld.com because of GTLD-SERVERS.NET
    DEP A.GTLD-SERVERS.NET <- f2.nstld.com because of GTLD-SERVERS.NET
    DEP A.GTLD-SERVERS.NET <- g2.nstld.com because of GTLD-SERVERS.NET
    DEP A.GTLD-SERVERS.NET <- h2.nstld.com because of GTLD-SERVERS.NET
    DEP A.GTLD-SERVERS.NET <- l2.nstld.com because of GTLD-SERVERS.NET
    DEP a2.nstld.com <- b2.nstld.com because of nstld.com
    DEP krgreenlee.blogspot.com <- ns1.google.com because of blogspot.com
    DEP krgreenlee.blogspot.com <- ns2.google.com because of blogspot.com
    DEP krgreenlee.blogspot.com <- ns3.google.com because of blogspot.com
    DEP krgreenlee.blogspot.com <- ns4.google.com because of blogspot.com

    It took 26 nameservers for you to find me....

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