· dns network reference

DNS not resolving

Recently I moved ramjeeganti.com to this current place on s3. In an earlier post I mentioned about moving my site to amazon-s3 and octopress. Shortly after the move, I found that the domain “ramjeeganti.com” was not at all resolving. Shortly there after I found that my google apps has not updated the mails for over a day, though it was allowing me to send mails. This made me suspicious and I finally figured out that the dns nameserver entries had to updated.

The domain registrar where this domain is registered failed to update me on the nameserver change. I just had to update the nameservers to fix the issue. What is more interesting is in the process of root causing the problem, I came across multiple tools which can help in figuring out the issue.


#bash dig - DNS lookup utility
dig ramjeeganti.com
; <<>> DiG 9.8.1-P1 <<>> ramjeeganti.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 43592
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION: ;ramjeeganti.com. IN A

;; ANSWER SECTION: ramjeeganti.com. 28485 IN A 216.239.36.21 ramjeeganti.com. 28485 IN A 216.239.32.21 ramjeeganti.com. 28485 IN A 216.239.38.21 ramjeeganti.com. 28485 IN A 216.239.34.21

;; Query time: 299 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Tue Nov 19 09:21:04 2013 ;; MSG SIZE rcvd: 97

###Use another dns server (google in this case) dig ramjeeganti.com @8.8.8.8 ; <<>> DiG 9.8.1-P1 <<>> www.ramjeeganti.com @8.8.8.8 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6444 ;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION: ;www.ramjeeganti.com. IN A

;; ANSWER SECTION: www.ramjeeganti.com. 21600 IN CNAME ramjeeganti.com.s3-website-ap-southeast-1.amazonaws.com. ramjeeganti.com.s3-website-ap-southeast-1.amazonaws.com. 60 IN CNAME s3-website-ap-southeast-1.amazonaws.com. s3-website-ap-southeast-1.amazonaws.com. 60 IN A 203.83.220.122

;; Query time: 591 msec ;; SERVER: 8.8.8.8#53(8.8.8.8) ;; WHEN: Tue Nov 19 09:21:41 2013 ;; MSG SIZE rcvd: 133


#bash  nslookup - query Internet name servers interactively
nslookup
> ramjeeganti.com
Server:     127.0.0.1
Address:    127.0.0.1#53

Non-authoritative answer: Name: ramjeeganti.com Address: 216.239.32.21 Name: ramjeeganti.com Address: 216.239.38.21 Name: ramjeeganti.com Address: 216.239.34.21 Name: ramjeeganti.com Address: 216.239.36.21 > set q=mx > ramjeeganti.com Server: 127.0.0.1 Address: 127.0.0.1#53

Non-authoritative answer: ramjeeganti.com mail exchanger = 30 aspmx2.googlemail.com. ramjeeganti.com mail exchanger = 10 aspmx.l.google.com. ramjeeganti.com mail exchanger = 30 aspmx5.googlemail.com. ramjeeganti.com mail exchanger = 30 alt2.aspmx.l.google.com. ramjeeganti.com mail exchanger = 30 aspmx4.googlemail.com. ramjeeganti.com mail exchanger = 20 alt1.aspmx.l.google.com. ramjeeganti.com mail exchanger = 30 aspmx3.googlemail.com.

Authoritative answers can be found from: > set q=CNAME > ramjeeganti.com
Server: 127.0.0.1 Address: 127.0.0.1#53

Non-authoritative answer: *** Can’t find ramjeeganti.com: No answer

Authoritative answers can be found from: ramjeeganti.com origin = whiz.mercury.orderbox-dns.com mail addr = ganti.r.gmail.com serial = 2013110501 refresh = 7200 retry = 7200 expire = 172800 minimum = 7200 > set q=any > ramjeeganti.com Server: 127.0.0.1 Address: 127.0.0.1#53

Non-authoritative answer: Name: ramjeeganti.com Address: 216.239.36.21 Name: ramjeeganti.com Address: 216.239.32.21 Name: ramjeeganti.com Address: 216.239.38.21 Name: ramjeeganti.com Address: 216.239.34.21 ramjeeganti.com mail exchanger = 30 aspmx2.googlemail.com. ramjeeganti.com mail exchanger = 10 aspmx.l.google.com. ramjeeganti.com mail exchanger = 30 aspmx5.googlemail.com. ramjeeganti.com mail exchanger = 30 alt2.aspmx.l.google.com. ramjeeganti.com mail exchanger = 30 aspmx4.googlemail.com. ramjeeganti.com mail exchanger = 20 alt1.aspmx.l.google.com. ramjeeganti.com mail exchanger = 30 aspmx3.googlemail.com. ramjeeganti.com nameserver = whiz.mercury.orderbox-dns.com. ramjeeganti.com nameserver = whiz.venus.orderbox-dns.com. ramjeeganti.com nameserver = whiz.earth.orderbox-dns.com. ramjeeganti.com nameserver = whiz.mars.orderbox-dns.com. ramjeeganti.com origin = whiz.mercury.orderbox-dns.com mail addr = ganti.r.gmail.com serial = 2013110501 refresh = 7200 retry = 7200 expire = 172800 minimum = 7200

Authoritative answers can be found from:

There are many sites which make life simple for people like me. They do all the necessary querying and show you the results in a pretty way.

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