Odd A record in our hosts zone file
Matus UHLAR - fantomas
uhlar at fantomas.sk
Fri Jun 25 18:44:26 UTC 2021
On 25.06.21 18:29, Bruce Johnson wrote:
>Thank you…this is very useful information; I thought TTL could only be specified on a per-zone basis, not per-host.
not even per-host. Different RR types for the same host can have different
>mail 1m IN A xxx.xxx.xxx.52; dhbex1
>mail 1m IN A xxx.xxx.xxx.54; dhbex2
mail 1d IN TXT "v=spf1 a -all"
mail 1h IN MX 0 mail
Only same RR types MUST have same value so e.g.:
mail 1m IN A xxx.xxx.xxx.52; dhbex1
mail 2m IN A xxx.xxx.xxx.54; dhbex2
would be incorrect and server will choose one of those to implement for all
RRs (see rfc 2182 section 5.2)
Matus UHLAR - fantomas, uhlar at fantomas.sk ; http://www.fantomas.sk/
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