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Really confusing problem with website!

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  • 04-03-2010 2:29pm
    #1
    paperplanes1988
    Registered Users Posts: 16 ✭


    Hi all,

    Bit of a problem here. Basically I have uploaded the homepage of a website, www.dabble.ie, and it is working fine. That is, it is working fine from everywhere bar within the university I go to. Entering the web address into IE returns the attached screenshot, but I can almost guarentee you that it will come up with the actual website if you try clicking the website link. The attached screenshot is what I was getting just after domain registration, before I changed the nameservers over to the correct ones. Has anyone ever encountered this before?

    Any help much appreciated, as I am at a complete loss right now!

    Thanks,
    Dave


Comments

  • Options
    #2
    Bald? er, dash!
    Registered Users Posts: 139 ✭✭Bald? er, dash!


    Cache?
    Try F5 / Refresh


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    #3
    paperplanes1988
    Registered Users Posts: 16 ✭paperplanes1988


    Bald? er, dash! wrote: »
    Cache?
    Try F5 / Refresh

    Was thinking that myself, but have tried loads of times. Have viewed on different PC's from different connections within the campus, and have left it for about three days now!


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    #4
    Sposs
    Registered Users Posts: 2,472 ✭✭✭Sposs


    When did you change the namservers can take up to 24 hours for all nameservers to propagate over.


  • Options
    #5
    paperplanes1988
    Registered Users Posts: 16 ✭paperplanes1988


    Sposs wrote: »
    When did you change the namservers can take up to 24 hours for all nameservers to propagate over.

    Changed the nameservers on Monday. I noticed this was happening a few hours afterwards, so I thought I would leave it 24 hours as you say, but it is still occuring now!


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    #6
    samhail
    Registered Users Posts: 2,699 ✭✭✭samhail


    propogate for the loose.

    you could try setting up a different DNS server from your machine (if you can). that way you know the uni dns servers are out of sync

    http://code.google.com/speed/public-dns/


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  • Options
    #7
    Liam Byrne
    Closed Accounts Posts: 18,163 ✭✭✭✭Liam Byrne


    Bald? er, dash! wrote: »
    Cache?
    Try F5 / Refresh

    F5/Refresh doesn't always empty the cache.

    Try the browser settings (e.g. Tools - Internet Options in IE, Tools - Options in Chrome) to explicitly empty Temporary Internet Files


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    #8
    samhail
    Registered Users Posts: 2,699 ✭✭✭samhail


    Its most likely not a caching issue in the browser.
    the caching issue would be on the Uni's DNS servers.
    when the DNS update was made on monday to the main IEDR servers, all the other nameservers have a cached value of that on their servers - usually they are pretty quick is getting the change out. my ie down propogated with in day ( i was well surprised)
    Propogation is what is described as the new IP address of the webserver being copied by the other DNS server from the main domain registry (IEDR)


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    #9
    cgarvey
    Registered Users Posts: 3,886 ✭✭✭cgarvey


    paperplanes1988 wrote: »
    That is, it is working fine from everywhere bar within the university I go to.

    Likely to be the Uni's own DNS caching, ignoring the TTL on the domain. I.e. they are caching DNS queries for dabble.ie for longer than what the records for dabble.ie say they should be. Many ISPs ignore TTLs too, in an attempt to keep DNS traffic down.

    Unfortunately, if that is the case, there's not much you can do about it, other than to either contact them or wait a while longer (until their cached query expires).

    You can check with tools like dig or nslookup (depending on your OS) to confirm that is the case.


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    #10
    The_B_Man
    Registered Users Posts: 7,860 ✭✭✭The_B_Man


    try CTRL+F5. that'll force a full refresh on the college proxy server as well.


  • Options
    #11
    OFlaherty
    Closed Accounts Posts: 37 ✭OFlaherty


    It sounds as if the UNI's DNS is doing some caching and you'll just have to wait.

    Another possibility is that the UNI is caching sites locally depending on how their network is set up to reduce bandwidth use. Again, you'd just have to wait until your site falls out of the cache.


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