这里需要说(shuō )明(míng )的是,在我们系(xì )统里面(miàn )如(rú )果单(dān )独设置一(yī )个子域名解析(xī ),比如将(jiāng )主机名设(shè )置(zhì )为mail,单独(dú )解(jiě )析到(dào )9,那么该解(jiě )析记录(lù )优先(xiān )泛域名在实(shí )际使(shǐ )用(yòng )中(zhōng )作用是非常广泛的,比如实(shí )现无(wú )限二级域名功能,提供(gòng )免费(fèi )的(de )url转(zhuǎn )发,在
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