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Domain Name System (DNS) troubles: Open DNS outage ?

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    Last night (5/6/2008 at around 11:00 pm PST), I was not able to get to ANY websites, nor was I able to get my email. When I tried to get to the website (www.opendns.com), I was NOT able to reach it.

    Furthermore, attempts to both ping it and do a trace route were unsuccessful in getting to any of the OpenDNS name servers.

    I had this same problem on both Mac OS X (10.4.11) and on Windows XP (SP2).

    Switching back to my ISP's name servers (my ISP is Time Warner) resolved the problem, but I was still not able to reach the OpenDNS website or ping the OpenDNS name servers.

    I'd really like to know what happened, and am not comfortable switching back to OpenDNS until I know what's going on.

    I welcome any further information or status on this problem.

    Thanks...
    • CommentAuthorbobtheguy
    • CommentTimeMay 7th 2008
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    On Comcast over here, having similar issues today. I can get to some sites by IP, but cannot reach the OpenDNS servers (tested with 208.67.220.220). Here is an output of my traceroute if it helps anyone:

    # traceroute 208.67.220.220
    traceroute to 208.67.220.220 (208.67.220.220), 64 hops max, 40 byte packets
    1 * * *
    2 ge-1-4-ur01.champaign.il.chicago.comcast.net (68.85.178.81) 43.405 ms 10.910 ms 9.889 ms
    3 pos-0-11-0-0-ar01.indianapolis.in.indiana.comcast.net (68.86.90.170) 22.853 ms 20.599 ms 28.692 ms
    4 pos-0-1-0-0-cr01.nashville.tn.ibone.comcast.net (68.86.90.169) 48.395 ms 30.566 ms 45.740 ms
    5 68.86.85.26 (68.86.85.26) 33.618 ms 34.168 ms 38.399 ms
    6 te-9-1.car1.Atlanta2.Level3.net (4.71.252.29) 34.394 ms 45.137 ms 70.612 ms
    7 ae-72-52.ebr2.Atlanta2.Level3.net (4.68.103.61) 48.864 ms 37.152 ms 33.349 ms
    8 ae-73-70.ebr3.Atlanta2.Level3.net (4.69.138.20) 53.527 ms 46.782 ms 40.261 ms
    9 ae-2.ebr1.Washington1.Level3.net (4.69.132.86) 52.264 ms 65.134 ms 55.697 ms
    10 ae-61-61.csw1.Washington1.Level3.net (4.69.134.130) 87.809 ms 49.492 ms 54.850 ms
    11 ae-1-69.edge1.Washington4.Level3.net (4.68.17.18) 47.832 ms 54.132 ms 83.173 ms
    12 mci-level3-te.Washington4.Level3.net (4.68.63.170) 53.300 ms mci-level3-te.Washington4.Level3.net (4.68.63.166) 65.145 ms 63.192 ms
    13 0.ge-5-0-0.XL4.IAD8.ALTER.NET (152.63.41.158) 53.933 ms 60.518 ms 51.611 ms
    14 152.63.36.65 (152.63.36.65) 68.319 ms 53.697 ms 54.533 ms
    15 63.65.187.230 (63.65.187.230) 59.538 ms 93.329 ms 58.247 ms
    16 * * *
    17 * * *
    18 * * *
    19 * * *
    20 * * *
    • CommentAuthorskelton
    • CommentTimeMay 7th 2008
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    A day or three back I had a DNS slow down. I was surfing pretty hard and got hung up while the computer did DNS lookups. There needs to be more than two sites to link to. The front page notes several sites, but no IP addresses where we can link.:bigsmile:
    • CommentAuthorbobtheguy
    • CommentTimeMay 7th 2008
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    Back up again now. Any ideas what was wrong with the network? (I realize it probably isn't your issue, but if you find out I'd love to know.)
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      CommentAuthormiked
    • CommentTimeMay 7th 2008
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    Administrator
    http://system.opendns.com/2008/05/07/71/

    Emergency router maintenance as performed last night in our Palo Alto location. You may have experinced some issues related to this.

    There are no known issues with the service currently. If you are having problems please open a support ticket.
    Thankful People: srday
    •  
      CommentAuthordavidu
    • CommentTimeMay 8th 2008
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    Administrator
    Also, @bobtheguy -- Just because we don't let you trace all the way through doesn't indicate a DNS issue.

    That said, we'll probably change our network setup to start passing ICMP through our network/routers.
    Thankful People: Jason
    • CommentAuthorantdude
    • CommentTimeMay 11th 2008
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    It seems to happening randomly again today especially a few minutes ago. How about the rest of you?
    • CommentAuthorsrday
    • CommentTimeMay 11th 2008
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    No problems on either of my networks (in PA and CO).
    • CommentAuthorantdude
    • CommentTimeMay 12th 2008
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    Ah, I think I figured out the problem. Age of Conan beta downloader was hogging my upload at max. Ugh! Stupid downloader doesn't have an option to set limit!
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    Always check system.opendns.com

    That shows the status of OpenDNS sites.
    Thankful People: Jason, Tom Glover
    • CommentAuthorJason
    • CommentTimeMay 12th 2008
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    If, for any reason, the 'system.opendns.com' domain fails, access the system page by its' IP Address (this is also mentioned on the System page):

    http://208.67.219.60/

    :tongue:
    • CommentAuthorunoriginal
    • CommentTimeMay 12th 2008
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    All the links to the system page are useful and all. But no gory details of the outage in PA were posted until at least a few hours later at the earliest, not really helpful when trying to diagnose a network issue. I also got bit by this because I noticed my traceroutes were going to Seattle instead of PA.

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