Portál AbcLinuxu, 7. května 2025 19:24
Řešení dotazu:
the restriction on the first character is relaxed to allow either a letter or a digit.Podle RFC 2181 - 11. Name syntax
any binary string can serve as the value of any record that includes a domain name as some or all of its value (SOA, NS, MX, PTR, CNAME, and any others that may be added).
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