这里(lǐ )需要说(shuō )明的是(shì ),在我(wǒ )们系统(tǒng )里面如果(guǒ )单独设(shè )置一个(gè )子域名解(jiě )析,比如(rú )将(jiāng )主机名(míng )设置为(wéi )mail,单独解析到9,那(nà )么该解析记录优先泛域名(míng )在实际(jì )使(shǐ )用中作用(yòng )是非常(cháng )广泛的(de ),比(bǐ )如(rú )实(shí )现无限二级域名功(gōng )能,提(tí )供(gòng )免费的url转(zhuǎn )发,在
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