I have setup a local raspberry pi to be a DNS server for the office. It worked (almost) perfectly, until we moved down a floor in the office.
The firewall and setup for the network is exactly the same, however my RaspberryPI DNS host doesn't.
The zones are correct and I can lookup the local domain and get the correct result. However, it doesn't ping.
From my Mac:
Pauls-MacBook-Pro:~ paulp$ nslookup mobile.domain.office
Server: 10.0.0.196
Address: 10.0.0.196#53
Name: mobile.domain.office
Address: 10.0.0.201
Pauls-MacBook-Pro:~ paulp$ ping mobile.domain.office
ping: cannot resolve mobile.domain.office: Unknown host
Pauls-MacBook-Pro:~ paulp$ ping -c 3 10.0.0.201
PING 10.0.0.201 (10.0.0.201): 56 data bytes
64 bytes from 10.0.0.201: icmp_seq=0 ttl=64 time=1.318 ms
64 bytes from 10.0.0.201: icmp_seq=1 ttl=64 time=2.562 ms
64 bytes from 10.0.0.201: icmp_seq=2 ttl=64 time=26.039 ms
--- 10.0.0.201 ping statistics ---
3 packets transmitted, 3 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 1.318/9.973/26.039/11.372 ms
Pauls-MacBook-Pro:~ paulp$ dig mobile.domain.office
; <<>> DiG 9.8.3-P1 <<>> mobile.domain.office
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 44066
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1
;; QUESTION SECTION:
;mobile.domain.office. IN A
;; ANSWER SECTION:
mobile.domain.office. 7200 IN A 10.0.0.201
;; AUTHORITY SECTION:
domain.office. 7200 IN NS raspberrypi.domain.office.
;; ADDITIONAL SECTION:
raspberrypi.domain.office. 7200 IN A 10.0.0.196
;; Query time: 1 msec
;; SERVER: 10.0.0.196#53(10.0.0.196)
;; WHEN: Wed Apr 27 15:05:42 2016
;; MSG SIZE rcvd: 100
The address of mobile.domain.office is 10.0.0.201. My mac can reach it perfectly, so can the DNS "server". The DNS server also resolved the DNS as well as my mac, yet I can't reach it. However, the DNS "server" does have a high latency and is slow to respond:
root@raspberrypi:/etc/bind# ping -c 3 mobile.domain.office
PING mobile.domain.office (10.0.0.201) 56(84) bytes of data.
64 bytes from 10.0.0.201: icmp_req=1 ttl=64 time=977 ms
64 bytes from 10.0.0.201: icmp_req=2 ttl=64 time=360 ms
64 bytes from 10.0.0.201: icmp_req=3 ttl=64 time=352 ms
--- mobile.domain.office ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 31348ms
rtt min/avg/max/mdev = 352.624/563.543/977.893/293.006 ms
As suggested here, I also changed /etc/nsswitch.conf to have dns after files, that didn't help either.
From what I can see, the zones are correct too. This is the zone for domain.zone:
;
; BIND data file for local loopback interface
;
$TTL 7200
@ IN SOA domain.office. root.domain.office. (
2 ; Serial
172800 ; Refresh
14400 ; Retry
2419200 ; Expire
604800 ) ; Negative Cache TTL
NS raspberrypi.domain.office.
domain.office IN NS raspberrypi.domain.office.
domain.office IN A 10.0.0.201
raspberrypi IN A 10.0.0.196
mobile IN A 10.0.0.201
I have also done a new reload on the name server control utility:
root@raspberrypi:/etc/bind# rndc reload domain.office
zone reload up-to-date
Also, both my Mac and the raspberry pi have the correct settings.
Ifconfig for my mac:
Pauls-MacBook-Pro:~ paulp$ ifconfig
[...]
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ether ac:bc:32:95:04:bb
inet6 fe80::aebc:32ff:fe95:4bb%en0 prefixlen 64 scopeid 0x4
inet 10.0.0.185 netmask 0xfffffe00 broadcast 10.0.1.255
nd6 options=1<PERFORMNUD>
media: autoselect
status: active
[...]
The raspberry pi:
root@raspberrypi:/etc/bind# ifconfig
eth0 Link encap:Ethernet HWaddr b8:27:eb:f4:2b:3c
inet addr:10.0.0.196 Bcast:10.0.1.255 Mask:255.255.254.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3208 errors:0 dropped:2 overruns:0 frame:0
TX packets:2353 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:844113 (824.3 KiB) TX bytes:324170 (316.5 KiB)
What am I doing wrong?
