Date: Wed, 15 Jul 2009 09:38:32 -0400 From: Jon Radel <jon@radel.com> To: Michael David Crawford <mdc@prgmr.com> Cc: freebsd-questions@freebsd.org Subject: Re: What does one call name server registration? Message-ID: <4A5DDBD8.4080000@radel.com> In-Reply-To: <4A5DC0AE.4090502@prgmr.com> References: <4A5DA6DF.4050107@prgmr.com> <139b44430907150349r6a171e01h9b67d0c7a5e7866a@mail.gmail.com> <4A5DC0AE.4090502@prgmr.com>
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This is a cryptographically signed message in MIME format. --------------ms080200050404030603030304 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Michael David Crawford wrote: > > Valentin and Olivier, > > Thank you very much for your kind help. > > I think what I needed were *both* NS and GLUE records. The NS record > establishes a host as a nameserver, and the GLUE record allows the name > server's own domain name to be within the domain it is the name server > for - that is, GLUE records prevent infinite loops when looking up the > domain it is a part of. Yes and no. Glue records make it possible to find the the NS in the first place; you're avoiding a broken chain rather than any risk of loops. zone for example.com mydomain IN NS ns.mydomain.example.com. zone for mydomain.example.com IN NS ns.mydomain.example.com. ns IN A 123.123.123.123 If you have the above, you've properly delegated the mydomain.example.com zone to ns.mydomain.example.com, but you'll never reach anything in that zone, as the only A record for the server is in the zone you're trying to find the server for, and you have no idea where that server is... So you have to put a ns.mydomain.example.com. IN A 123.123.123.123 record in the example.com zone so that recursive lookups can find that one critical address and access the mydomain zone. That's the glue record. -- --Jon Radel jon@radel.com --------------ms080200050404030603030304 Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIJMTCC AvMwggJcoAMCAQICEB1eDeVYxhAO39zOEnHiAbwwDQYJKoZIhvcNAQEFBQAwYjELMAkGA1UE BhMCWkExJTAjBgNVBAoTHFRoYXd0ZSBDb25zdWx0aW5nIChQdHkpIEx0ZC4xLDAqBgNVBAMT I1RoYXd0ZSBQZXJzb25hbCBGcmVlbWFpbCBJc3N1aW5nIENBMB4XDTA5MDIyNTA0MTMyNloX DTEwMDIyNTA0MTMyNlowXjEOMAwGA1UEBBMFUmFkZWwxEzARBgNVBCoTCkpvbiBUaG9tYXMx GTAXBgNVBAMTEEpvbiBUaG9tYXMgUmFkZWwxHDAaBgkqhkiG9w0BCQEWDWpvbkByYWRlbC5j b20wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDeT7qtj+euqWr2wXM7OnwrXJe9 Jlc0CGaM69AcTWOFakRY7MUXrqcmF5WjrqrMoagfGjS362eb6787x313ZdLoGuQPh/o2Mqp4 BbSgcnGZRj82SxkUmSN6+2q5ZOOYA6JmfvJwmBuRQ8sHki4GnoSwbIc11a70/z4at5qRi8bb /RtmJYewnpwXErfuuq0hhVSsYKFPXELzSahlpyC+lUfIdgvLJGxc7eU5QuvtYmuohNjn4k9C SJinvfjFbkvgbIgtvZxxmcE74NsKTeW2bEwgoCjZlcAD/QMgLE9KGSVn4/LzC/OZwkPKcWKO CPTNIZK1P+HxaIW4BvvYtjLu2Qx5AgMBAAGjKjAoMBgGA1UdEQQRMA+BDWpvbkByYWRlbC5j b20wDAYDVR0TAQH/BAIwADANBgkqhkiG9w0BAQUFAAOBgQBT+qFXV8sexrNOJuK8rhVpnCNF iFslD9Kelhon5Tt1tlTsw+B9F9B8ys9tfV559tzVqE+ULcqnjX2rsaJCwFmn6gyucCN0yGML h1O4ddsNQmoTOILyBCv/rkfO4tbXJM3si2JDNPZnL/0Rf3FpDTc3U3SnAdqE1a/8PGBTTmay VDCCAvMwggJcoAMCAQICEB1eDeVYxhAO39zOEnHiAbwwDQYJKoZIhvcNAQEFBQAwYjELMAkG A1UEBhMCWkExJTAjBgNVBAoTHFRoYXd0ZSBDb25zdWx0aW5nIChQdHkpIEx0ZC4xLDAqBgNV BAMTI1RoYXd0ZSBQZXJzb25hbCBGcmVlbWFpbCBJc3N1aW5nIENBMB4XDTA5MDIyNTA0MTMy NloXDTEwMDIyNTA0MTMyNlowXjEOMAwGA1UEBBMFUmFkZWwxEzARBgNVBCoTCkpvbiBUaG9t YXMxGTAXBgNVBAMTEEpvbiBUaG9tYXMgUmFkZWwxHDAaBgkqhkiG9w0BCQEWDWpvbkByYWRl bC5jb20wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDeT7qtj+euqWr2wXM7Onwr XJe9Jlc0CGaM69AcTWOFakRY7MUXrqcmF5WjrqrMoagfGjS362eb6787x313ZdLoGuQPh/o2 Mqp4BbSgcnGZRj82SxkUmSN6+2q5ZOOYA6JmfvJwmBuRQ8sHki4GnoSwbIc11a70/z4at5qR i8bb/RtmJYewnpwXErfuuq0hhVSsYKFPXELzSahlpyC+lUfIdgvLJGxc7eU5QuvtYmuohNjn 4k9CSJinvfjFbkvgbIgtvZxxmcE74NsKTeW2bEwgoCjZlcAD/QMgLE9KGSVn4/LzC/OZwkPK cWKOCPTNIZK1P+HxaIW4BvvYtjLu2Qx5AgMBAAGjKjAoMBgGA1UdEQQRMA+BDWpvbkByYWRl bC5jb20wDAYDVR0TAQH/BAIwADANBgkqhkiG9w0BAQUFAAOBgQBT+qFXV8sexrNOJuK8rhVp nCNFiFslD9Kelhon5Tt1tlTsw+B9F9B8ys9tfV559tzVqE+ULcqnjX2rsaJCwFmn6gyucCN0 yGMLh1O4ddsNQmoTOILyBCv/rkfO4tbXJM3si2JDNPZnL/0Rf3FpDTc3U3SnAdqE1a/8PGBT TmayVDCCAz8wggKooAMCAQICAQ0wDQYJKoZIhvcNAQEFBQAwgdExCzAJBgNVBAYTAlpBMRUw EwYDVQQIEwxXZXN0ZXJuIENhcGUxEjAQBgNVBAcTCUNhcGUgVG93bjEaMBgGA1UEChMRVGhh d3RlIENvbnN1bHRpbmcxKDAmBgNVBAsTH0NlcnRpZmljYXRpb24gU2VydmljZXMgRGl2aXNp b24xJDAiBgNVBAMTG1RoYXd0ZSBQZXJzb25hbCBGcmVlbWFpbCBDQTErMCkGCSqGSIb3DQEJ ARYccGVyc29uYWwtZnJlZW1haWxAdGhhd3RlLmNvbTAeFw0wMzA3MTcwMDAwMDBaFw0xMzA3 MTYyMzU5NTlaMGIxCzAJBgNVBAYTAlpBMSUwIwYDVQQKExxUaGF3dGUgQ29uc3VsdGluZyAo UHR5KSBMdGQuMSwwKgYDVQQDEyNUaGF3dGUgUGVyc29uYWwgRnJlZW1haWwgSXNzdWluZyBD QTCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEAxKY8VXNV+065yplaHmjAdQRwnd/p/6Me 7L3N9VvyGna9fww6YfK/Uc4B1OVQCjDXAmNaLIkVcI7dyfArhVqqP3FWy688Cwfn8R+RNiQq E88r1fOCdz0Dviv+uxg+B79AgAJk16emu59l0cUqVIUPSAR/p7bRPGEEQB5kGXJgt/sCAwEA AaOBlDCBkTASBgNVHRMBAf8ECDAGAQH/AgEAMEMGA1UdHwQ8MDowOKA2oDSGMmh0dHA6Ly9j cmwudGhhd3RlLmNvbS9UaGF3dGVQZXJzb25hbEZyZWVtYWlsQ0EuY3JsMAsGA1UdDwQEAwIB BjApBgNVHREEIjAgpB4wHDEaMBgGA1UEAxMRUHJpdmF0ZUxhYmVsMi0xMzgwDQYJKoZIhvcN AQEFBQADgYEASIzRUIPqCy7MDaNmrGcPf6+svsIXoUOWlJ1/TCG4+DYfqi2fNi/A9BxQIJNw PP2t4WFiw9k6GX6EsZkbAMUaC4J0niVQlGLH2ydxVyWN3amcOY6MIE9lX5Xa9/eH1sYITq72 6jTlEBpbNU1341YheILcIRk13iSx0x1G/11fZU8xggNkMIIDYAIBATB2MGIxCzAJBgNVBAYT AlpBMSUwIwYDVQQKExxUaGF3dGUgQ29uc3VsdGluZyAoUHR5KSBMdGQuMSwwKgYDVQQDEyNU aGF3dGUgUGVyc29uYWwgRnJlZW1haWwgSXNzdWluZyBDQQIQHV4N5VjGEA7f3M4SceIBvDAJ BgUrDgMCGgUAoIIBwzAYBgkqhkiG9w0BCQMxCwYJKoZIhvcNAQcBMBwGCSqGSIb3DQEJBTEP Fw0wOTA3MTUxMzM4MzJaMCMGCSqGSIb3DQEJBDEWBBRgHGMGDDfq9PwmMw/K2ZjjIoz2rjBS BgkqhkiG9w0BCQ8xRTBDMAoGCCqGSIb3DQMHMA4GCCqGSIb3DQMCAgIAgDANBggqhkiG9w0D AgIBQDAHBgUrDgMCBzANBggqhkiG9w0DAgIBKDCBhQYJKwYBBAGCNxAEMXgwdjBiMQswCQYD VQQGEwJaQTElMCMGA1UEChMcVGhhd3RlIENvbnN1bHRpbmcgKFB0eSkgTHRkLjEsMCoGA1UE AxMjVGhhd3RlIFBlcnNvbmFsIEZyZWVtYWlsIElzc3VpbmcgQ0ECEB1eDeVYxhAO39zOEnHi AbwwgYcGCyqGSIb3DQEJEAILMXigdjBiMQswCQYDVQQGEwJaQTElMCMGA1UEChMcVGhhd3Rl IENvbnN1bHRpbmcgKFB0eSkgTHRkLjEsMCoGA1UEAxMjVGhhd3RlIFBlcnNvbmFsIEZyZWVt YWlsIElzc3VpbmcgQ0ECEB1eDeVYxhAO39zOEnHiAbwwDQYJKoZIhvcNAQEBBQAEggEACPVo boiCRDyTWZzqBcHH+dIWNRdXJT6HE0LBmdf00XFRSsbcb523VkVRQih6Hkh47pZZ64hI8IY8 BDVMXcQg0XToznVT4TUTzV65iaN9UHIFQ53FCIZEcrpr/u53F2Ejo3KxzlEY/+2kIg/vhkd+ /jbseJH3MhXYYlqKlbU8CWGnPzsvR8VG+mBDPJm3+WYmS6+9nxckRY7O8o4yso3q3mjXtz2J fPZ7Q6TtvU9+GhxNQ8dXlgkXp6bAH4zpCJ6jdXE0r9By89oG9qFhLnVypkoWUyZMjrJeU841 xgRHB4o4A+cxLWBomztuR2yISTJjNuzIlJC3659JFK6Kmqi2ZwAAAAAAAA== --------------ms080200050404030603030304--
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