Can not query remotely

Tommy tomnospam at lugh.boley.org
Wed Sep 22 16:38:51 UTC 2004


Why would dns queries only work locally?

(SERVICE is up)=20

[root at lugh root]# service named status
number of zones: 5
debug level: 0
xfers running: 0
xfers deferred: 0
soa queries in progress: 0
query logging is OFF
server is up and running
[root at lugh root]#

First Query goes to my secondary probivied by isp and has incorrect
infomaiton.

---------------------------------------
[root at lugh root]# dig puck.boley.org

; <<>> DiG 9.2.1 <<>> puck.boley.org
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 56064
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;puck.boley.org.                        IN      A

;; ANSWER SECTION:
puck.boley.org.         7200    IN      A       216.254.88.2

;; Query time: 45 msec
;; SERVER: 216.254.95.2#53(216.254.95.2)
;; WHEN: Wed Sep 22 12:17:42 2004
;; MSG SIZE  rcvd: 48
---------------------------
Now I query my server
; <<>> DiG 9.2.1 <<>> @lugh.boley.org puck.boley.org
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 34358
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 1

;; QUESTION SECTION:
;puck.boley.org.                        IN      A

;; ANSWER SECTION:
puck.boley.org.         86400   IN      A       216.254.88.3

;; AUTHORITY SECTION:
boley.org.              86400   IN      NS      216.254.95.2.
boley.org.              86400   IN      NS      lugh.boley.org.
boley.org.              86400   IN      NS      216.254.88.2.

;; ADDITIONAL SECTION:
lugh.boley.org.         86400   IN      A       216.254.88.2

;; Query time: 5 msec
;; SERVER: 127.0.0.1#53(lugh.boley.org)
;; WHEN: Wed Sep 22 12:18:21 2004
;; MSG SIZE  rcvd: 134

--------------------
Lets just verfify that:
root at lugh root]# dig @216.254.88.2  puck.boley.org

; <<>> DiG 9.2.1 <<>> @216.254.88.2 puck.boley.org
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 60069
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 1

;; QUESTION SECTION:
;puck.boley.org.                        IN      A

;; ANSWER SECTION:
puck.boley.org.         86400   IN      A       216.254.88.3

;; AUTHORITY SECTION:
boley.org.              86400   IN      NS      lugh.boley.org.
boley.org.              86400   IN      NS      216.254.88.2.
boley.org.              86400   IN      NS      216.254.95.2.

;; ADDITIONAL SECTION:
lugh.boley.org.         86400   IN      A       216.254.88.2

;; Query time: 5 msec
;; SERVER: 216.254.88.2#53(216.254.88.2)
;; WHEN: Wed Sep 22 12:20:05 2004
;; MSG SIZE  rcvd: 134

-----------------------
Notice that the correct IP for puck is given.

Ok now from a romote location

----------------------------------------
shell2.speakeasy.net% dig @lugh.boley.org puck.boley.org

; <<>> DiG 9.2.4rc5 <<>> @lugh.boley.org puck.boley.org
;; global options:  printcmd
;; connection timed out; no servers could be reached
shell2.speakeasy.net%
-------------------------------------

Maybe the port is down
[root at lugh root]# nmap lugh.boley.org

Starting nmap V. 3.00 ( www.insecure.org/nmap/ )
Interesting ports on lugh.boley.org (127.0.0.1):
(The 1589 ports scanned but not shown below are in state: closed)
Port       State       Service
21/tcp     open        ftp
22/tcp     open        ssh
25/tcp     open        smtp
53/tcp     open        domain
80/tcp     open        http
111/tcp    open        sunrpc
443/tcp    open        https
631/tcp    open        ipp
783/tcp    open        hp-alarm-mgr
953/tcp    open        rndc
3306/tcp   open        mysql
6000/tcp   open        X11

---------------------
My guess is either iptables is blocking the queries even though nmap says
it is open. Or Bind is incorrectly configured to only service local
requests.  I am not sure what to look for. any suggestions are welcome
Thank you in advance.


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