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[Magnus Wagner]

Am 06.10.2016 um 11:04 schrieb Magnus Wagner:
>> http://www.faqs.org/rfcs/rfc1912.html
>> 2.1 Inconsistent, Missing, or Bad Data
>> 
>>    Every Internet-reachable host should have a name.  The consequences
>>   of this are becoming more and more obvious.  Many services available
>>   on the Internet will not talk to you if you aren't correctly
>>   registered in the DNS.
>>
>>    Make sure your PTR and A records match.  For every IP address, there
>>    should be a matching PTR record in the in-addr.arpa domain.

> man beachte das "should"

Macht man's nicht braucht man einen guten Grund(RFC2119).
3. SHOULD   This word, or the adjective "RECOMMENDED", mean that there
   may exist valid reasons in particular circumstances to ignore a
   particular item, but the full implications must be understood and
   carefully weighed before choosing a different course.

 Welcher sollte das sein?

Magnus