40 lines
2.3 KiB
Markdown
40 lines
2.3 KiB
Markdown
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Can we Discard these existing Test Cases
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========================================
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* serial number of the form YYYYMMDDnn
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* Reasons for not discarding : The recommended syntax is YYYYMMDDnn (YYYY=year, MM=month, DD=day, nn=revision number. This would not overflow until the year 4294. (RFC 1912 [page 3])
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* Reasons for discarding : Even though some BIND versions allow you to use a decimal in a serial
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number, don't. A decimal serial number is converted to an unsigned 32-bit integer internally anyway. The formula for a n.m serial number is n*10^(3+int(0.9+log10(m))) + m which translates to
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something rather unexpected. For example it's routinely possible with a decimal serial number (perhaps automatically generated by SCCS) to be incremented such that it is numerically larger, but after the above conversion yield a serial number which is LOWER than before. Decimal serial numbers have been officially deprecated in recent BIND versions. (RFC 1912 [page 3])
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* Delegated domain is not an openrelay
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* Reasons for discarding : Not required for testing DNS
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* Domain of the hostmaster email is not an openrelay
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* Reasons for discarding : Not required for testing DNS
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* Can deliver email to 'postmaster'
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* Reasons for discarding : This test conforms to the requirements in RFC 1123 [Page 52] "A host that supports a receiver-SMTP MUST support the reserved mailbox "Postmaster"". The RFC is setting up the
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requirements for Internet hosts. But this test requirements is not really the responsibility of DNS. D
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o we need this ?
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* Can deliver email to hostmaster
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* Reasons for not discarding : It is imperative that this address get to one or more real persons, because it is often used for everything from reporting bad DNS data to reporting security incidents (RFC 1912 [page 3])
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* Domain able to receive email (delivery using MX, A, AAAA)
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* Reasons for discarding : Not required for testing DNS
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* Test if mail delivery possible
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* Reasons for discarding : Not required for testing DNS
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Defining the Test Cases
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=======================
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* ICMP answer
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* root servers list present
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* root servers list identical to ICANN
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* root servers addresses identical to ICANN
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* coherence between NS and ANY records
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* coherence between SOA and ANY records
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* coherence between MX and ANY records
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