DNS 伺服器嘗試以現有的 RR 快取網域名稱的 CNAME (別名) 資源記錄。會忽略 CNAME RR，因為它必須是網域名稱中的唯一資源記錄。
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English version
The DNS server attempted to cache an CNAME (alias) resource record (RR) for a domain name with existing RRs. The CNAME RR is ignored, since it must be the only RR for its domain name.
Windows