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DNS not working

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Operating Systems Linux Red Hat DNS not working
# 1  
Old 04-23-2012
DNS not working
Hi,

I have installed RHEL5 as a new build and need get it to resolve to the internet. At the moment I get following:

Code:
# dig www.google.com
; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5 <<>> www.google.com
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: REFUSED, id: 5960
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;Google.                        IN      A
;; Query time: 27 msec
;; SERVER: 192.168.235.7#53(192.168.235.7)
;; WHEN: Mon Apr 23 14:03:04 2012
;; MSG SIZE  rcvd: 32

Can someone advise what needs to be done in order to get this resolving?

R,
D.
# 2  
Old 04-23-2012
Is your /etc/resolv.conf configured correctly? Maybe post it using code tags, thanks.
# 3  
Old 04-23-2012
I didn't think that dig used resolv.conf?

The DNS server I use is on a different vlan but I can telnet to it over port 53. So I have added a new zone file because the domain name of my new server is different. I have also updated the named.conf file on the DNS server to include this new zone. I can resolve my new server from the DNS server but not locally?

Code:
# cat /etc/resolv.conf
nameserver 192.168.235.7

R,
D
# 4  
Old 04-23-2012
Ah I recall you asking about iptables and this issue. Actually reading the dig output, I'd say your DNS server (BIND or whatever on192.168.235.7) is misconfigured, since you do get a REFUSED.

To verify, do you have success using a different nameserver:
Code:
dig @8.8.8.8 google.com

Also, do you administer the DNS server on 192.168.235.7 ?
# 5  
Old 04-23-2012
From dig's man page:
Quote:
Unless it is told to query a specific name server, the dig command tries each of the servers listed in the /etc/resolv.conf file.
If I got it right, then you query a name, but don't tell it which server to use.
# 6  
Old 04-23-2012
OK now I see your earlier reply.. You need to enable recursion if your DNS server will serve clients as well. Look for "recursion no" or allow-recursion { addr range; } in your options section of named.conf and change as needed.
# 7  
Old 04-23-2012
Hi,

Code:
# dig @8.8.8.8 google.com
; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5 <<>> @8.8.8.8 google.com
; (1 server found)
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 58739
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;google.com.                    IN      A
;; ANSWER SECTION:
google.com.             184     IN      A       209.85.143.100
google.com.             184     IN      A       209.85.143.101
;; Query time: 86 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Mon Apr 23 14:44:53 2012
;; MSG SIZE  rcvd: 60

Ok so it resolves this.

There are no recursion options in my named.conf file.

I inherited the DNS server which has big questionmarks surrounding its config. May need to clean this up.
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