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    Thread: Roll back the server or pass the baton

    1. #61
      RussM is offline SDMAS Staff Member
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      As mentioned in my previous post, I am a network engineer/consultant; one of my specialties is Internet security and connectivity. I have done as much diagnostic work as I can, and the problem many of us have been having is not with the sdreefs.com server itself, but with the Domain Name System (aka DNS).

      DNS is the service which translates server/domain name like www.sdreefs.com into an Internet Protocol (IP) address (sdreefs' IP address is 70.84.14.194) which is then in turn used for your ISP to route the traffic to the proper destination. The heart of the DNS system is a group of servers called root servers which are operated by various companies like Verisign and Cogent, some universities, and federal entities like NASA and the DoD.

      Hosting companies like minidedicated.com (which hosts sdreefs) run DNS servers for the domain names they host. On a periodic basis (usually daily), such DNS servers execute a data transfer, which is an exchange of DNS records for the applicable domains. Ultimately, all of the root servers know which specific DNS server(s) contain the specific records for a given domain (like sdreefs.com).

      When you fire up your favorite Internet browser, and type in a URL (http://www.somewhere.com), your computer sends a query to your ISP's DNS server. If your ISP's DNS server doesn't have the information already cached (stored temporarily), it sends a query to another DNS server up the line so on and so forth until it gets a response that tells it which DNS server hosts the records for somewhere.com. That DNS server, when queried, responds with a message that says "www.somewhere.com's IP adress is 55.248.24.119"; this info is sent back to your computer, and your computer then sends the request for the default web page for www.somewhere.com to 55.248.24.119.

      Although this whole process may sound complex, normally this process takes place in milliseconds. Something is awry with the records for SDReefs, or the proper exchange thereof. As far as I can tell, both of the DNS servers for sdreefs.com are correct. Some ISPs are getting the right info (seems like TWC is good); some are getting it sporadically (Cox), and some don't seem to be getting it at all (like ATT, based on the reports here and other forums).

      As of the last communications from Blake, he was working with the hosting company (and the DNS provider for the sdreefs.com domain) to resolve the issue. That, however, was some time ago.

      As a networking professional, I know that sometimes problems like this can be a real PITA to resolve, and I can be patient. But I would like to see some sort of status update from Blake.

    2. #62
      Technoviking's Avatar
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      Should be all done now, just got off the phone with our host.

    3. #63
      RussM is offline SDMAS Staff Member
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      Quote Originally Posted by Technoviking View Post
      Should be all done now, just got off the phone with our host.
      Cool... I'll remove my host entry in the AM and see how it goes.

    4. #64
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      woooo wait a min I need to remove that file I put in the hosts now?
      Aly Gator is here

    5. #65
      RussM is offline SDMAS Staff Member
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      Quote Originally Posted by socalaly View Post
      woooo wait a min I need to remove that file I put in the hosts now?
      Eventually, yes, you will want to. Just leave it there for the time being. Let someone else on AT&T be the guinea pig If reports are good in a couple days, then take it out.

    6. #66
      RussM is offline SDMAS Staff Member
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      Doh! I left out one of the most important points in my DNS explaination... the reason the hosts file trick works is because your computer always checks to see if there is an entry in the hosts file for a given computer or domain name before it sends out a DNS query. If you added the info for sdreefs.com in the hosts file, your computer does not even have to send a query to your ISP.

      And as I told Aly, anyone who did make an entry in their hosts file should remove it (just delete the whole line) after it looks like everything is in fact resolved.

    7. #67
      99sf is offline Registered User
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      Thanks, Techno & RussM. Finally have access! Not sure if it was updating my secret file as an administrator, or the site host fully integrating the changes, but I'm happy!

    8. #68
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      sweet! able to log on this morning with no problem. Now if I could only get my home computer back to how it was before I tweaked it. It won't show any pictures on any site, LOL

    9. #69
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      Somethings not kosher as I have not been able to access the site from Home (Yahoo/ATT) for days/weeks...has to hurt traffic value.

      Was even dead this AM from work but hit a link provided by an email all.

      I would suggest an email to all again specific to end users trying tricks. Also include new bookmarks or links in the email to use.

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    10. #70
      dnraiders is offline Registered User
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      still not working for me during the day...

    11. #71
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      ATT/Yahoo still dysfunctional

      Edit : 3PM, Did not work yesterday...Works fine...

      Everyone have a great Holiday.


      Thanks

      mike
      Last edited by Yolo; 12-23-2008 at 03:06 PM.
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