NS記錄name欄位為空代表何意
;; global options: printcmd
. 172800 IN NS l.root-servers.net.
. 172800 IN NS e.root-servers.net.
. 172800 IN NS h.root-servers.net.
. 172800 IN NS j.root-servers.net.
. 172800 IN NS f.root-servers.net.
. 172800 IN NS g.root-servers.net.
. 172800 IN NS i.root-servers.net.
. 172800 IN NS k.root-servers.net.
. 172800 IN NS a.root-servers.net.
. 172800 IN NS c.root-servers.net.
. 172800 IN NS m.root-servers.net.
. 172800 IN NS b.root-servers.net.
. 172800 IN NS d.root-servers.net.
;; Received 512 bytes from 192.5.6.30#53(192.5.6.30) in 252 ms
. 518400 IN NS J.ROOT-SERVERS.NET.
. 518400 IN NS H.ROOT-SERVERS.NET.
. 518400 IN NS E.ROOT-SERVERS.NET.
. 518400 IN NS K.ROOT-SERVERS.NET.
. 518400 IN NS G.ROOT-SERVERS.NET.
. 518400 IN NS C.ROOT-SERVERS.NET.
. 518400 IN NS M.ROOT-SERVERS.NET.
. 518400 IN NS A.ROOT-SERVERS.NET.
. 518400 IN NS F.ROOT-SERVERS.NET.
. 518400 IN NS B.ROOT-SERVERS.NET.
. 518400 IN NS D.ROOT-SERVERS.NET.
. 518400 IN NS L.ROOT-SERVERS.NET.
. 518400 IN NS I.ROOT-SERVERS.NET.
rt
《解決方案》
定義的根域名伺服器的地址.
《解決方案》
如果為空則代表引用上條記錄域名部分。
你的例子嚴格來說不算空，因為「.」代表根域。
《解決方案》
回復 3# blueswxs
professional
very good
