Urgent Help needed

Stephen Smith scsmith1451 at totacc.com
Tue Jun 6 12:20:45 MDT 2006


Something has changed in our DNS services that is blocking nfs mounts.

 From the client I get:

mount: amparotech:/data3/qcdm failed, reason given by server: Permission 
denied

In the log file of the server I get:

<date/time> orasrv rpc.mountd: refused mount request from 192.168.1.5 
(luke.168.192.in-addr.arpa) for /data3/qcdm (/data3/qcdm): no DNS 
forward lookup

note 1: amparotech is the DNS entry for the orasrv box
note 2: I'm getting the same error between boxes who's DNS name matches 
the hostname of the server as well

If I ping amparotech from luke I get:

# ping amparotech
PING amparotech.gwic.net (192.168.1.48) 56(84) bytes of data
64 byts from amparotech.gwic.net.168.192.in-addr.arpa (192.168.1.48): 
icmp_seq=1 ttl=64 time=0.153 ms

which looks to me like it forward resolved correctly.

If I dig from luke I get the following:

# dig amparotech.gwic.net

;<<>> Dig 9.2.1 <<>> amparotech.gwic.net
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 60751
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITONAL: 0

;; QUESTION SECTION:
;amparotech.gwic.net.                     IN    A

;; ANSWER SECTION:
amparotech.gwic.net.         86400    IN   A  192.168.1.48

;; AUTHORITY SECTION:
gwic.net.                            86400    IN   NS ns.gwic.net.

To me this shows forward resolution is working.

If I dig -x 192.168.1.5, I get:

; <<>> DiG 9.2.1 <<>> -x 192.168.1.5
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 28896
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;5,1.168.192.in-addr.arpa.                IN        PTR

;;ANSWER SECTION:
5.1.168.192.in-addr.arpa.  86400     IN        PTR        
luke.168.192.in-addr.arpa.

;; AUTHORITY SECTION:
168.192.in-addr.arpa.        86400     IN         NS         
ns.gwic.net.168.192.in-addr.arpa.

If I understand dig, this show reverse resolution working as well.

Can anyone help me resolve this issue.  I'm running in the "I hope I 
don't have to reboot" mode, otherwise I will loose all of my nfs shares 
between all computers in my server farm.

Steve



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