A.drwxr-xr-x 2 root root 220 2009-04-14 17:30 doe B.-rw-r--r-- l root root 1050 2009-04-14 17:30 docl C.lrwxrwxrwx l root root 4096 2009-04-14 17:30 profile D.drwxrwxrwx 4 root root 4096 2009-04-14 17:30 protocols
A.READ B.GET C.HEAD D.POST
A.主域名服務(wù)器 B.輔域名服務(wù)器 C.緩存域名服務(wù)器 D.轉(zhuǎn)發(fā)域名服務(wù)器