这里需(xū )要说明的是,在(zài )我(wǒ )们(men )系(xì )统里(lǐ )面如果单(dān )独设置一个(gè )子(zǐ )域名解析,比如将主(zhǔ )机(jī )名设置为(wéi )mail,单独解析(xī )到9,那(nà )么(me )该(gāi )解析记录优先泛域(yù )名在实际(jì )使(shǐ )用(yòng )中(zhōng )作用是(shì )非常广泛的(de ),比如实(shí )现无限二级域名功能,提(tí )供(gòng )免费的url转(zhuǎn )发,在
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