这里(lǐ )需要说明的是,在我们系(xì )统里面(miàn )如果(guǒ )单独设(shè )置一(yī )个子域(yù )名解(jiě )析,比如(rú )将(jiāng )主机名(míng )设置为mail,单独解析到9,那么(me )该(gāi )解析记(jì )录(lù )优(yōu )先泛域名在(zài )实际(jì )使(shǐ )用中(zhōng )作(zuò )用是非常广(guǎng )泛的,比如实(shí )现无限二级域名(míng )功能(néng ),提供免费的url转(zhuǎn )发(fā ),在
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