有人能帮助我理解这一点吗：--
%)-- host brahma.mksh.net
Host brahma.mksh.net not found: 3(NXDOMAIN)
现在，当我使用 trace 运行 dig 时，我得到了我已分配的 brahma.mksh.net 的 A 记录。
%)-- dig brahma.mksh.net +trace
; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5 <<>> brahma.mksh.net +trace
;; global options: printcmd
. 453157 IN NS b.root-servers.net.
. 453157 IN NS f.root-servers.net.
. 453157 IN NS e.root-servers.net.
. 453157 IN NS a.root-servers.net.
. 453157 IN NS h.root-servers.net.
. 453157 IN NS k.root-servers.net.
. 453157 IN NS l.root-servers.net.
. 453157 IN NS m.root-servers.net.
. 453157 IN NS i.root-servers.net.
. 453157 IN NS d.root-servers.net.
. 453157 IN NS g.root-servers.net.
. 453157 IN NS j.root-servers.net.
. 453157 IN NS c.root-servers.net.
;; Received 512 bytes from 216.145.54.95#53(216.145.54.95) in 1 ms
net. 172800 IN NS k.gtld-servers.net.
net. 172800 IN NS b.gtld-servers.net.
net. 172800 IN NS i.gtld-servers.net.
net. 172800 IN NS f.gtld-servers.net.
net. 172800 IN NS l.gtld-servers.net.
net. 172800 IN NS h.gtld-servers.net.
net. 172800 IN NS j.gtld-servers.net.
net. 172800 IN NS g.gtld-servers.net.
net. 172800 IN NS a.gtld-servers.net.
net. 172800 IN NS d.gtld-servers.net.
net. 172800 IN NS c.gtld-servers.net.
net. 172800 IN NS m.gtld-servers.net.
net. 172800 IN NS e.gtld-servers.net.
;; Received 490 bytes from 192.228.79.201#53(b.root-servers.net) in 74 ms
mksh.net. 172800 IN NS ns16.zoneedit.com.
mksh.net. 172800 IN NS ns17.zoneedit.com.
;; Received 115 bytes from 192.52.178.30#53(k.gtld-servers.net) in 176 ms
brahma.mksh.net. 300 IN A 71.198.58.88
mksh.net. 7200 IN NS ns16.zoneedit.com.
mksh.net. 7200 IN NS ns17.zoneedit.com.
;; Received 99 bytes from 69.64.68.41#53(ns16.zoneedit.com) in 37 ms
我的 DNS 配置是否错误？发生了什么？
答案1
名称解析得很好。主机的 DNS 或其解析器中缓存了某些内容，为您提供了这些信息NXDOMAIN- 需要一些时间，但从 Google 的 DNS 服务器来看，它运行得很好。