这(zhè )里(lǐ )需要说明的是(shì ),在我(wǒ )们系(xì )统里面如(rú )果单独(dú )设置一个(gè )子域(yù )名解析(xī ),比如将(jiāng )主机(jī )名设置为mail,单独(dú )解析到(dào )9,那(nà )么该解(jiě )析(xī )记录优先泛域名在(zài )实际(jì )使用(yòng )中作(zuò )用是非常(cháng )广泛的,比如实(shí )现(xiàn )无限二级(jí )域名功能(néng ),提(tí )供免费的url转(zhuǎn )发,在
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