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    • CommentAuthorcumby
    • CommentTimeJul 16th 2009
     permalink
    Is there a way to bypass a blocked page on open dns. For example, what if I want to block Youtube, but may want to occasionally access it. If I add it as a site to be blocked, do I have to completely unblock it and change the settings in order to access it? I didnt see anywhere to enter a password on the page showing the site had been blocked.
    • CommentAuthorRed Prince
    • CommentTimeJul 16th 2009
     permalink
    Yes, you have to unblock it completely and flush your DNS cache.
    • CommentAuthorcumby
    • CommentTimeJul 16th 2009
     permalink
    So its either all or nothing? A site has to either be blocked or unblocked and if blocked, I cant access without going through the process of unblocking?
    • CommentAuthorRed Prince
    • CommentTimeJul 16th 2009
     permalink
    OpenDNS is a DNS server following the DNS protocol. As such, it knows nothing about sites, all it deals with are domains.

    When you enter a URL or click on a link, your browser has to look up the IP address of the domain of the URL. It is at this point that OpenDNS enters the equation. It finds the IP address of the domain and tells your system what it is. That is all it does (and it does it well).

    The DNS protocol has no provisions for entering a password. It is like looking up a number in the phonebook. All you do is look it up as it is printed in the book.

    When your system receives the IP address, it caches it for a period of time during which it does not ask OpenDNS (or any other DNS server) to look it up again. So, even if there was a way for you to enter a password, it would do you no good because once your system has the IP address for a domain in its cache, it does not look it up again until the cache is cleared.

    Understanding that OpenDNS is a DNS service and understanding how DNS works is the answer to your question. This understanding makes it very clear that there is no way for OpenDNS to make temporary exceptions. You have to go to your dashboard, change the settings, wait for three minutes or so for the changes to spread to all of OpenDNS servers, flush your DNS, visit whatever site you have turned off, then go back to your dashboard, change the settings back, wait for a few minutes, a clear your cache again.

    If you need to make frequent exceptions to your blocking rules, you need to consider a different solution, one not based on DNS, such as installing some filtering software on your computer(s).
    Thankful People: rotblitz, maintenance
  1.  permalink
    Good explanation. I may link to that in the future. :wink:
    Thankful People: Red Prince
    • CommentAuthorsjwalter
    • CommentTimeJul 16th 2009
     permalink
    Yeah, but....OpenDNS people have said they are working on a bypass. Don't know how far along it is though.

    :p
    • CommentAuthorcumby
    • CommentTimeJul 17th 2009
     permalink
    OK. I may have to consider using a filter program in addition. I have the settings selected for anything adult, including lingerie, bikini, adult themes, nudity, sexuality...I think all the related sections are checked. I have cleared my cache and history several times. However, I can still access web sited that may not be considered porn or adult sites?? but are pretty provocative. Sites like playboy.com are blocked but if I search for playboy, I can find related sites that are easily accessible and although they may not be considered adult sites, I certainly don't want my kids to see them. Would it make sense to also use a filter program in addition to open dns? What would be the benefit of running a filter program and keeping open dns also?
    • CommentAuthordiacon
    • CommentTimeJul 17th 2009
     permalink
    You can run both. Layers of solution will work better than one solution. Might want to check out K-9 Software. It's designed for what you are looking to do.
  2.  permalink
    Three methods to access blocked websites

    1. Use IP address - This is the simplest way to bypass domain name based access restrictions. Instead of the domain name such as www.webstuffscan.com use the direct IP address. To find the IP address use one of the free host to IP online conversion tools such as this.

    2. Use Google cache - If you are not bothered whether the content is latest on a site, Google cache is best. Do a Google search for the site and then click on the cached link below the search results.

    3. Use an Anonymizer - In this method you access a third party site which in turn routes your request to the required server. Some services provide URL encryption also. The problem is that most of these servers are no longer free. Do a google search for the latest list as this is a very dynamic area Following are some services which still works(free!)
  3.  permalink
    @ cumby:

    Have you checked these domains to see if they have been tagged and approved (that is, they are being used as filters).
    http://www.opendns.com/community/domaintagging/
    Enter the domain name in the upper right.
    • CommentAuthornmollring
    • CommentTimeJul 17th 2009
     permalink
    K-9 is great, works very well. For a quick workaround on opendns, just change your local DNS to something like 4.2.2.2 and flush your local cache

This discussion has been inactive for longer than 30 days, and is thus closed.