这里(lǐ )需要说明的是,在我(wǒ )们系(xì )统里面(miàn )如果单独设置一个(gè )子域名(míng )解析(xī ),比(bǐ )如将(jiāng )主机名(míng )设置(zhì )为(wéi )mail,单(dān )独(dú )解析到(dào )9,那么该解析记(jì )录优(yōu )先(xiān )泛(fàn )域(yù )名在实际使用(yòng )中(zhōng )作用是非常广泛(fàn )的,比如实现无限(xiàn )二级域名功(gōng )能,提供免费的url转(zhuǎn )发,在
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