Unable to understand why a different A record response being sent by bind
I am Running bind (bind-9.9.5P1-2.2.2.x86_64) on Open Suse 13.2 I have the following Records in my Zone file $ORIGIN test1.com. $TTL 600 @ IN SOA atlanta.test1.com. admin.test1.com. ( 2003022720 ; Serial 56800 ; Refresh 14400 ; Retry 360; Expire 2h ); Minimum IN NS atlanta.test1.com. atlanta.test1.com. IN A10.54.48.68 ;A Records denver1.test1.com. IN A10.54.80.150 denver1.test10.com. IN A10.54.80.17 denver2.test1.com. IN A10.54.80.150 IN A10.54.80.35 test1.com. IN A 10.54.80.150 When I am doing a dig for the record denver2.test1.com. for A I am receiving this Response: dig denver2.test1.com. A ; <<>> DiG 9.9.5-rpz2+rl.14038.05-P1 <<>> denver2.test1.com. A ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 42085 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 1, ADDITIONAL: 2 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;denver2.test1.com. IN A ;; ANSWER SECTION: denver2.test1.com. 600 IN A 10.54.80.150 denver2.test1.com. 600 IN A 10.54.80.35 ;; AUTHORITY SECTION: test1.com. 600 IN NS atlanta.test1.com. ;; ADDITIONAL SECTION: atlanta.test1.com. 600 IN A 10.54.48.68 ;; Query time: 0 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Mon Jun 20 18:22:29 IST 2016 ;; MSG SIZE rcvd: 122 Question: 1. I am not able to understand why this answer is being Received denver2.test1.com. 600 IN A 10.54.80.35 as I have not configured any owner-name for the record type 2. If there is no owner-name specified in the DNS Records, what owner-name does the record actually pick? ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Unable to understand why a different A record response being sent by bind
Hi Harshith, On 20 June 2016 at 15:05:58, Harshith Mulky (harshith.mu...@outlook.com) wrote: I am Running bind (bind-9.9.5P1-2.2.2.x86_64) on Open Suse 13.2 I have the following Records in my Zone file $ORIGIN test1.com. $TTL 600 @ IN SOA atlanta.test1.com. admin.test1.com. ( 2003022720 ; Serial 56800 ; Refresh 14400 ; Retry 360 ; Expire 2h ) ; Minimum IN NS atlanta.test1.com. atlanta.test1.com. IN A 10.54.48.68 ;A Records denver1.test1.com. IN A 10.54.80.150 denver1.test10.com. IN A 10.54.80.17 denver2.test1.com. IN A 10.54.80.150 IN A 10.54.80.35 test1.com. IN A 10.54.80.150 When I am doing a dig for the record denver2.test1.com. for A I am receiving this Response: dig denver2.test1.com. A ; <<>> DiG 9.9.5-rpz2+rl.14038.05-P1 <<>> denver2.test1.com. A ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 42085 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 1, ADDITIONAL: 2 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;denver2.test1.com. IN A ;; ANSWER SECTION: denver2.test1.com. 600 IN A 10.54.80.150 denver2.test1.com. 600 IN A 10.54.80.35 ;; AUTHORITY SECTION: test1.com. 600 IN NS atlanta.test1.com. ;; ADDITIONAL SECTION: atlanta.test1.com. 600 IN A 10.54.48.68 ;; Query time: 0 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Mon Jun 20 18:22:29 IST 2016 ;; MSG SIZE rcvd: 122 Question: 1. I am not able to understand why this answer is being Received denver2.test1.com. 600 IN A 10.54.80.35 as I have not configured any owner-name for the record type It’s not an “owner”, it’s a RR (Resource Record) ;) In your zone file you have: denver2.test1.com. IN A 10.54.80.150 IN A 10.54.80.35 So BIND interprets the 2nd line as a 2nd value for denver2.test1.com., which makes perfect sense. 2. If there is no owner-name specified in the DNS Records, what owner-name does the record actually pick? See above: it’ll pick the previous line where you have a RR defined. Cheers, -- Nico ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Unable to understand why a different A record response being sent by bind
On 20.06.16 13:05, Harshith Mulky wrote: I have the following Records in my Zone file denver1.test10.com. IN A10.54.80.17 test10.com clearly does not belong here... denver2.test1.com. IN A10.54.80.150 IN A10.54.80.35 When I am doing a dig for the record denver2.test1.com. for A ;; ANSWER SECTION: denver2.test1.com. 600 IN A 10.54.80.150 denver2.test1.com. 600 IN A 10.54.80.35 1. I am not able to understand why this answer is being Received denver2.test1.com. 600 IN A 10.54.80.35 as I have not configured any owner-name for the record type that's it, if you don't specify owner name, the last one will apply 2. If there is no owner-name specified in the DNS Records, what owner-name does the record actually pick? the one previously used, so you can define multiple RRs for the same owner name without repeating is. It's the same as: @ IN SOA atlanta.test1.com. admin.test1.com. ( 2003022720 ; Serial 56800 ; Refresh 14400 ; Retry 360; Expire 2h ); Minimum IN NS atlanta.test1.com. the first owner name "@" (this means the one specified in bing config, is also used for NS record for the current zone. btw you should use example.com instead of test1.com for examples... -- Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. I drive way too fast to worry about cholesterol. ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Query "resolver" and "lwresd" via "dig"
Dear all, I wish to know efficient ways to query "resolver" and "lwresd". To my understanding, "resolver" is the iterative full DNS resolver, and "lwresd" is the lightweight resolver daemon. I plan to use "dig" to query both of them. I am not able to find a way to query "resolver" using "dig". For "lwresd", I ran "./lwresd -f". Then, I ran "./dig @localhost -p 921 google.com" on another terminal to query lwresd. However, I could not connect to the "lwresd". It will be great if anyone can share the approach on how to set up the client and server. It should be a very easy problem to solve, but I could not find any useful information about it online... Thanks! Regards, Jun Xiang Tee ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
