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嗯,多谢,问题找到啦,是根域服务器配置问题,原来named.root是用dig >named.root得到的,DNS为8.8.8.8 ,得到的named.root没有根域服务器的IP地址:
[root@oas-scen ~]# dig
; <<>> DiG 9.3.6-P1-RedHat-9.3.6-20.P1.el5_8.6 <<>>
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 31258
;; flags: qr rd ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;. IN NS
;; ANSWER SECTION:
. 12471 IN NS l.root-servers.net.
. 12471 IN NS h.root-servers.net.
. 12471 IN NS d.root-servers.net.
. 12471 IN NS b.root-servers.net.
. 12471 IN NS i.root-servers.net.
. 12471 IN NS f.root-servers.net.
. 12471 IN NS m.root-servers.net.
. 12471 IN NS c.root-servers.net.
. 12471 IN NS j.root-servers.net.
. 12471 IN NS e.root-servers.net.
. 12471 IN NS g.root-servers.net.
. 12471 IN NS a.root-servers.net.
. 12471 IN NS k.root-servers.net.
;; Query time: 233 msec
;; SERVER: 8.8.8.8#53(8.8.8.
;; WHEN: Fri Mar 28 13:36:05 2014
;; MSG SIZE rcvd: 228
这个是错误的。从ftp://ftp.rs.internic.net/domain/下载一个named.root文件就能递归查询了。 |
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