Problems with IPv6

  • Hi all,

    I have a problem with IPv6 on my blog.
    I am running WP 2.9.2 in an OpenVZ container with Debian/Lenny and Lighttpd.

    Some functions do not work when I assign an IPv6-address to the VM:
    – Akismet can not check comments and can not verify the key because there is no connection to akismet.com. But: The Akismet-configuration tells me that “All Akismet servers are available.”
    – WordPress does not check for new plugins
    – WordPress does not check for new versions
    – The entries from the “WordPress Development Blog” (https://www.ads-software.com/development/feed/) on the Overview-page can not be loaded, but the entries from “Other WordPress News” (https://planet.www.ads-software.com/feed/) are loaded.

    And accessing the blog with IPv6 also works fine. So the problem is only there when WordPress tries to do outgoing connections, but not for all functionality.
    When I remove the IPv6-address, all problems disappear. But that can not be the solution as all other services (other Websites with Lighttpd, FTP with vsftpd, mail with postfix and courier, ssh, DNS with bind) are running fine with IPv6.

    Has anyone an idea where I have to look for or what the problem could be?

    Thanks in advance, Karsten

Viewing 2 replies - 1 through 2 (of 2 total)
  • Thread Starter karsteni

    (@karsteni)

    Forgot one thing:
    In the overview, where the entries from the WordPress Development Blog should be, there is only the following error-message:

    RSS Error: A feed could not be found at https://www.ads-software.com/development/feed/

    (this is only one line)

    Thread Starter karsteni

    (@karsteni)

    it’s getting even more complicated:

    if I hardcode the ip-addresses of wordpress.com/www.ads-software.com and the akismet-server in the /etc/hosts, then it works again. But:
    The dns-queries from the working config (without an ipv6-address) and the non-working config (with ipv6-address) look the same:

    from tcpdump (first line is the query, second line the response)
    working:

    11469+ A? rest.akismet.com. (34)
11469 q: A? rest.akismet.com. 4/0/0 rest.akismet.com. A akismet.com, rest.akismet.com. A akismet.com, rest.akismet.com. A akismet.com, rest.akismet.com. A akismet.com (98)

    not working:

    5152+ A? rest.akismet.com. (34)
5152 q: A? rest.akismet.com. 4/0/0 rest.akismet.com. A akismet.com, rest.akismet.com. A akismet.com, rest.akismet.com. A akismet.com, rest.akismet.com. A akismet.com (98)

Viewing 2 replies - 1 through 2 (of 2 total)
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