Check_dns Error

[Marc Powell]

On Aug 12, 2009, at 4:01 PM, Dei Bertine wrote:

> Hi All,
>
> I got this error today but wasnt sure on what is this about.
>
> No changes again were made, it just decided to appear out of no  
> where...
>
> DNS CRITICAL - '/usr/bin/nslookup -sil' msg parsing exited with no  
> address
>
> Please kindly advise...

check_dns uses /usr/bin/nslookup to do the actual dns lookup. nslookup  
failed and didn't return an address or the format of it's output  
changed and wasn't recognized.

If this is ongoing, try running check_dns from the command line,  
adding a -v (verbose) flag to see what command is being sent to  
nslookup and what the nslookup output is. It'll probably provide a  
clue to the real problem.

--
Marc

p.s. Please start a new thread when you have a new, unrelated  
question. Don't hijack someone else's question.

p.p.s. --

$ ./check_dns -H www.ena.com -v
/usr/bin/nslookup -sil www.ena.com
Server:		172.27.0.3
Address:	172.27.0.3#53

Name:	www.ena.com
Address: 172.27.0.30

DNS OK: 0.014 seconds response time. www.ena.com returns 172.27.0.30| 
time=0.014442s;;;0.000000


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