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    What’s going on here??? Really Weird DNS Resolving Issue???

    Scheduled Pinned Locked Moved DHCP and DNS
    3 Posts 2 Posters 733 Views
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    • N Offline
      nak_attack
      last edited by

      I really could use advice from anyone with Networking, DNS or DNS related experience. I believe this to be the issue (although I’m not certain).

      EQUIPMENT:
      -pfSense 2.3.1-RELEASE-p5 (i386) FreeBSD 10.3-RELEASE-p3.
      -Time Warner Cable (TWC) supplied router Arris TG1672G in bridge mode.
      -Netgear Router Nighthawk X6 R8000, again in bridged mode and only using wireless features. I use 4 of the available ports to connect other devices (laptop, printer, local server).

      ISSUE:
      I can not connect to certain domains, which coincidentally belong to a off-site physical server running linux centos. I can access the internet and browse a number of other public websites. I can successfully connect to the plesk control panel on the server, however I cannot connect to any website that resides within it. Really weird.

      THINGS I’VE TRIED:
      -Verified that the domains are working. They can be accessed from a cell phone using the providers data rather than my wireless network.
      -Reset the cache in Safari, Mozilla.
      -Reset the cache in pfSense.
      -Reset and factor reset numerous times the TWC router, pfSense router, and the NetGear Nighthawk.
      -Performed ping test from laptop using Terminal on Mac and all tests returned successful.
      -Removed all pieces of hardware then connected laptop directly to TWC router and was SUCCESSFUL in connecting to the domains in question.

      WHAT COULD HAVE CAUSED THIS ISSUE:
      The system had been working correctly up until last week. The only change that was made was that I upgraded the pfSense to v 2.3.1. Prior to upgrade I had the version that did not have the new GUI design. Could this be the reason? If so, how to roll back changes to confirm or deny this hypothesis?

      WHAT I THINK MIGHT BE THE ISSUE:
      I think this might be related to a DNS issue. Although, truth be told, I’m not at all experienced enough to understand the technical details of how DNS works.

      I have SSH access to pfSense as well as the GUI.

      Please help as this situation is really frustrating…any ideas would be greatly appreciated!!

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      • C Offline
        cmb
        last edited by

        Is it really an issue with resolving DNS? If you try to ping the site by hostname, what's the result?

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        • N Offline
          nak_attack
          last edited by

          I can ping all the sites successfully.

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