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Security & DNS Caches

  • 03-11-2007 08:20PM
    #1
    h2s
    Registered Users, Registered Users 2 Posts: 287 ✭✭


    Had a discussion in work about this and of course different opinions emerged about this, so I'll throw it open here to see what others think.

    When using DNS services such a openDNS which use large caches to help speed things up, how secure is your browsing of secure websites such as online banking, shopping, etc... It is possible for a savvy IT person to examine the caches to extract confidential information that may be stored during the transactions with the websites?


Comments

  • #2
    FruitLover
    Registered Users, Registered Users 2 Posts: 2,534 ✭✭✭FruitLover


    No. The only information that will be sent to these DNS servers is FQDNs.


  • #3
    TimTim
    Registered Users, Registered Users 2 Posts: 804 ✭✭✭TimTim


    The only thing the DNS cache will store is the fact boards.ie 208.69.32.139

    However if you were using a dubious DNS server, the person responsible for it could force it to serve mybank.ie to resolve to his own IP.

    However setting it up so nobody would notice would be a difficult thing to do.


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