Single Point Failure

[ibrahimak]

Hi ,

i am getting Single Point of Failure from dnsreport.com , And i got another problem thats i am getting NXDOMAIN failure when i dig webmail.hastane.bayar.edu.tr , www.hastane.bayar.edu.tr. but i dont get this error when i dig hastane.bayar.edu.tr or thorn.hastane.bayar.edu.tr ( they are my NS )

how can i solve this ;
Host file ;
$ttl 86400
@ IN SOA thorn.hastane.bayar.edu.tr. i.\akgun.bayar.edu.tr. (
1170679337
10800
3600
604800
86400 )
hastane.bayar.edu.tr. IN NS thorn.hastane.bayar.edu.tr.
hastane.bayar.edu.tr. IN NS hastane.bayar.edu.tr.
thorn.hastane.bayar.edu.tr. IN A 194.27.158.10
hastane.bayar.edu.tr. IN A 194.27.158.9
www CNAME thorn.hastane.bayar.edu.tr.
webmail CNAME thorn.hastane.bayar.edu.tr.
ns2.hastane.bayar.edu.tr. IN A 194.27.158.10
ns1.hastane.bayar.edu.tr. IN A 194.27.158.9
yvz.hastane.bayar.edu.tr. IN A 194.27.158.253
hastane.bayar.edu.tr. IN MX 10 thorn.hastane.bayar.edu.tr.
mail IN CNAME thorn.hastane.bayar.edu.tr.
hastane.bayar.edu.tr. IN TXT "v=spf1 a mx ptr include:hastane.bayar.edu.tr ~all"


......... HELP ME PLEASE

[falko]

There are no A records for any of your four subdomains:

mh1:~# dig webmail.hastane.bayar.edu.tr

; <<>> DiG 9.2.1 <<>> webmail.hastane.bayar.edu.tr
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 44202
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;webmail.hastane.bayar.edu.tr. IN A

;; Query time: 928 msec
;; SERVER: 213.191.92.84#53(213.191.92.84)
;; WHEN: Fri Feb 9 14:54:31 2007
;; MSG SIZE rcvd: 46

mh1:~# dig www.hastane.bayar.edu.tr

; <<>> DiG 9.2.1 <<>> www.hastane.bayar.edu.tr
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 32281
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;www.hastane.bayar.edu.tr. IN A

;; Query time: 9 msec
;; SERVER: 213.191.92.84#53(213.191.92.84)
;; WHEN: Fri Feb 9 14:54:40 2007
;; MSG SIZE rcvd: 42

mh1:~# dig hastane.bayar.edu.tr

; <<>> DiG 9.2.1 <<>> hastane.bayar.edu.tr
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 30740
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;hastane.bayar.edu.tr. IN A

;; Query time: 86 msec
;; SERVER: 213.191.92.84#53(213.191.92.84)
;; WHEN: Fri Feb 9 14:54:52 2007
;; MSG SIZE rcvd: 38

mh1:~# dig thorn.hastane.bayar.edu.tr

; <<>> DiG 9.2.1 <<>> thorn.hastane.bayar.edu.tr
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 50401
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;thorn.hastane.bayar.edu.tr. IN A

;; Query time: 9 msec
;; SERVER: 213.191.92.84#53(213.191.92.84)
;; WHEN: Fri Feb 9 14:55:08 2007
;; MSG SIZE rcvd: 44I think you must create them on one of the name servers for bayar.edu.tr:

mh1:~# dig ns bayar.edu.tr

; <<>> DiG 9.2.1 <<>> ns bayar.edu.tr
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 23017
;; flags: qr rd ra; QUERY: 1, ANSWER: 7, AUTHORITY: 0, ADDITIONAL: 8

;; QUESTION SECTION:
;bayar.edu.tr. IN NS

;; ANSWER SECTION:
bayar.edu.tr. 86400 IN NS demirci.bayar.edu.tr.
bayar.edu.tr. 86400 IN NS yemekhane.bayar.edu.tr.
bayar.edu.tr. 86400 IN NS w1.bayar.edu.tr.
bayar.edu.tr. 86400 IN NS w3.bayar.edu.tr.
bayar.edu.tr. 86400 IN NS w4.bayar.edu.tr.
bayar.edu.tr. 86400 IN NS proxy.bayar.edu.tr.
bayar.edu.tr. 86400 IN NS proxy2.bayar.edu.tr.

;; ADDITIONAL SECTION:
yemekhane.bayar.edu.tr. 86400 IN A 194.27.157.234
w1.bayar.edu.tr. 86400 IN A 194.27.50.10
w3.bayar.edu.tr. 86400 IN A 194.27.50.17
w4.bayar.edu.tr. 86400 IN A 194.27.50.19
proxy.bayar.edu.tr. 86400 IN A 194.27.50.1
proxy.bayar.edu.tr. 86400 IN A 194.27.159.242
proxy2.bayar.edu.tr. 86400 IN A 194.27.159.243
demirci.bayar.edu.tr. 38400 IN A 194.27.159.2

;; Query time: 146 msec
;; SERVER: 213.191.92.84#53(213.191.92.84)
;; WHEN: Fri Feb 9 14:55:20 2007
;; MSG SIZE rcvd: 296