hi guys, was this issue resolved? or did you find the root cause for this?
I have experienced the same, my wife reported "google outage" and I started to look around. any DNS query except google was running perfectly fine.
I'm runing 380.63_2, didnt find any suspicious in /etc/dnsmasq.conf or in iptables NAT tables. /tmp/resolv.conf was pointing to my ISP DNS.
now the funny part, I changed "Connect to DNS Server automatically" to NO and set OpenDNS. everything started moving the right way. switched to ISP DNS, and 127.0.0.1 response is back, I could reproduce the problem multiple times in a row.
Unfortunately after about 30 min (and multiple reboots), the response is back to normal and I cannot reproduce the 127.0.0.1 response for google.com anymore to provide a tcpdump or anything similar.
The IT guys from the ISP confirmed that there was no outage on the DNS infra. I will keep an eye on this and get some dumps if time permits.
######## On the router itself:
# nslookup
www.google.com
Server: 127.0.0.1
Address 1: 127.0.0.1 localhost.localdomain
Name:
www.google.com
Address 1: ::ffff:127.0.0.1
Address 2: 127.0.0.1 localhost.localdomain
# nslookup google.com
Server: 127.0.0.1
Address 1: 127.0.0.1 localhost.localdomain
Name: google.com
Address 1: ::ffff:127.0.0.1
Address 2: 127.0.0.1 localhost.localdomain
######## I tested DNS lookups on the wifi client, of course it was the same
[21:17:33][Tue Nov 22]:~ dig
www.google.com
; <<>> DiG 9.10.4-P3 <<>>
www.google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 17922
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;
www.google.com. IN A
;; ANSWER SECTION:
www.google.com. 0 IN A 127.0.0.1
;; Query time: 20 msec
;; SERVER: 192.168.1.1#53(192.168.1.1)
;; WHEN: Tue Nov 22 21:18:05 CET 2016
;; MSG SIZE rcvd: 48
[21:18:05][Tue Nov 22]:~ dig google.com
; <<>> DiG 9.10.4-P3 <<>> google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 16826
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;google.com. IN A
;; ANSWER SECTION:
google.com. 0 IN A 127.0.0.1
;; Query time: 20 msec
;; SERVER: 192.168.1.1#53(192.168.1.1)
;; WHEN: Tue Nov 22 21:18:10 CET 2016
;; MSG SIZE rcvd: 44
