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Old 6th November 2006, 13:51
farao farao is offline
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Default Type=AAAA: Host not found (...)

Dear all,

After installing ISPConfig and using it for some time now, I get strange returned mail. The error is from my Postfix installation, and says:

Host or domain name not found. Name service error for name=a_certain_domain.nl type=AAAA: Host found but no data record of requested type

I already found it is a IPv6-thing, and it frequently happens when the receiving server is behind a router or something that doesn't really comply to the Rules of Ripe. My mail gets returned with this error when mailing companies (a few anyway).

I can live with not being able to e-mail certain companies, but it's rather annoying.
Is there anything at all I can do except hope everybody will wisen up and start using proper DNS-servers?

Thanks.
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  #2  
Old 7th November 2006, 16:22
falko falko is offline
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You can create an AAAA record for a_certain_domain.nl on the authoritative name server for that domain.
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  #3  
Old 31st January 2007, 19:58
farao farao is offline
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Hi Falko,

Thanks for the reply (I acted on it, and added aaaa-records for my domains, trust me), but the error occurs for domains that are not under my control. I found a config parameter in postfix where I can tell it to only use the IPv4 protocol, and that helps: now i get the error that a type A record for the domain can't be found. If I dig the domain, it promptly returns the A-record. Meanwhile my mail still bounces for completely valid domains...

Thanks, Farao
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Old 31st January 2007, 20:04
martinfst martinfst is offline
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Code:
AAAA
    IPv6 address, code 28. Used for storing an IPv6 128-bit address associated with a domain name. Defined in RFC 3596.
Have you enabled IPv6 support? I know I have fully disabled it, but I guess you need to tell some utilities to use IPv6. With e.g. bind/named you have to add -6 as a parameter during startup.
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Old 3rd February 2007, 19:46
farao farao is offline
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I did disable ipv6, and have dug into resolv.conf, which showed me it only searched my own gateway... not good. I added a search lan and a couple of the nameservers my isp runs, and it seems that was what caused the problems.
I don't use the namewerver ispconfig installs, maybe that's part of the problem as well, but since my isp hase good servers, i thought, why bother running my own. maybe I should consider it though...

Thanks for thinking with me,
Farao
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  #6  
Old 4th February 2007, 13:13
martinfst martinfst is offline
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One of the reasons to run a local DNS server is the ability to do caching. But you need to modify the default settings, to forward at least to the upstream DNS servers, most usually the ones of your ISP.
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