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  1. #1
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    Oct 2005
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    Default new sub domain do not work

    hello,

    i create a account with domain.com from whm,

    and i add two sub domains from cpanel of the account

    sub1.domain.com and sub2.domain.com,


    but it is very interesting,

    sub2.domain.com works well,

    but the main domain domain.com and sub1.domain.com only work part times,

    how can not make sure why it is ?

    and for adding a subdomain,should i wait 24~72 hours to work?



    thanks

  2. #2
    cPanel Partner NOC cPanel Partner NOC Badge
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    New subdomain resolution should be pretty fast, like instant fast. If you run your own DNS as soon as the dns server is restarted it is active.

    When you say it does not work all of the time, what error do you get?

  3. #3
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    Default

    Quote Originally Posted by eth00 View Post
    New subdomain resolution should be pretty fast, like instant fast. If you run your own DNS as soon as the dns server is restarted it is active.

    When you say it does not work all of the time, what error do you get?
    i think it may dns problem,

    because i try to do tracert domain.com and sub1.domain.com,

    it shows can not find the dns.


    thanks

  4. #4
    Support Manager cPanelEric's Avatar
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    Howdy,

    I'd try some forensic DNS testing from a Linux shell.

    Try out:

    dig +trace sub1.domain.tld

    host -a sub1.domain.tld

    between those two you should be able to pin it down.

    As for working insta-fast on subdomains, it depends on if you've ever looked up the sub before you added it. If you kick open a browser to subdomain.domain.tld before you add it, you're going to be left with a no host in your DNS cache, and likely your ISP's DNS cache. You won't be able to see the subdomain until the cache clears in some cases.

  5. #5
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    hello

    Quote Originally Posted by cpanelerice View Post
    dig +trace sub1.domain.tld

    host -a sub1.domain.tld
    do you mean i run the two line on my issused server?


    As for working insta-fast on subdomains, it depends on if you've ever looked up the sub before you added it. If you kick open a browser to subdomain.domain.tld before you add it, you're going to be left with a no host in your DNS cache, and likely your ISP's DNS cache. You won't be able to see the subdomain until the cache clears in some cases.
    no,i browser them after created the subdomains.

    and i try to run "ipconfig /flushdns" on my winxp pc to clean the dns cache,

    but it still show well some time and unreachable most time.


    thanks

  6. #6
    Support Manager cPanelEric's Avatar
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    Howdy,

    The problem is even if you've cleared your cache it's still in your ISP's cache. These are commands that I'd recommend running from your network. If you don't have the tools to test with there, I'd recommend submitting a ticket with support.

    Thanks!

  7. #7
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    i had created a ticket.

    thanks

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