Bind9 Configuration: "unknown host" on ping

[lightnb]

I have two JEOS Virtual Machines, running Ubuntu 9.04:

One is a web-server with MediaWiki, the other is a DNS server running Bind9.

I set-up DNS following the official Ubuntu server documentation.
When I ping "mywiki.com" from the NameServer machine, I get:
ping: unknown host mywiki.com Pinging other sites like google.com works just fine.


dig mywiki.com:

; <<>> DiG 9.5.1-P2 <<>> mywiki.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 24809
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

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

;; Query time: 0 msec
;; SERVER: 192.168.5.131#53(192.168.5.131)
;; WHEN: Mon Jun 29 15:40:15 2009
;; MSG SIZE rcvd: 28



/etc/bind/named.conf.local:
// A zone for our WikiMedia Server
zone "mywiki.com" {
type master;
file "/etc/bind/db.mywiki.com";
};


// Reverse Lookup Zone
zone "5.168.192.in-addr.arpa" {
type master;
notify no;
file "/etc/bind/db.192";
};


/etc/bind/db.mywiki.com:

;
; BIND data file for the WikiMedia Wiki at mywiki.com
;
$TTL 604800
@ IN SOA mywiki.com. root.mywiki.com. (
4 ; Serial
604800 ; Refresh
86400 ; Retry
2419200 ; Expire
604800 ) ; Negative Cache TTL
;
@ IN NS mywiki.com.
@ IN A 192.168.5.102
ns IN A 192.168.5.102



Any ideas what I'm missing?

Thanks,

Nick

[jhannah]

What exactly is at 192.168.5.131 providing the empty DNS responses? I would recommend you try adding '@127.0.0.1' to your dig command and see if you get the expected responses by running that directly on the bind server.

The results of digging at localhost should tell you if the issue is in bind or if the name server at 192.168.5.131 is giving invalid results for another reason. Anything interesting in your bind logs?

[lightnb]

192.168.5.131 is the IP address of the DNS server in question.

dig mywiki.com@127.0.0.1


; <<>> DiG 9.5.1-P2 <<>> mywiki.com@127.0.0.1
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 45480
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;mywiki.com\@127.0.0.1. IN A

;; Query time: 111 msec
;; SERVER: 192.168.5.131#53(192.168.5.131)
;; WHEN: Wed Jul 1 08:13:25 2009
;; MSG SIZE rcvd: 38


I looked in /var/log for a Bind9 log file or folder, but couldn't find one...

[lightnb]

Ok, got logging working.

Ping and dig just produce this:


client 192.168.5.131#54471: query: mywiki.com IN A +
client 192.168.5.131#41687: query: mywiki.com IN A +
client 192.168.5.131#60652: query: mywiki.com IN A +
client 192.168.5.131#49115: query: mywiki.com IN A +
client 192.168.5.131#39969: query: mywiki.com IN A +