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How hobbit server deal with DNS server failure when doing conn test ?

list Bruce White
Wed, 19 Mar 2008 09:48:28 -0500
Message-Id: <user-a0b142e375b4@xymon.invalid>

Josh,
 
I think the first statement is true.  I have many items monitored by hobbit
which are not registered in DNS (I live with a bunch of windows centric team
mates and they rely on WINS not DNS.   None of these items end up with
conn=red, but they are ID'd in the output from bbtest on the hobbit server.
Here is that output:
 
DNS statistics:
# hostnames resolved  :      383
# succesful           :      306
# failed              :       77
# calls to dnsresolve :      414

Notice that I have 77 monitored items which fail the DNS lookup.
 
      .....Bruce
 

From: Josh Luthman [mailto:user-4c45a83f15cb@xymon.invalid] 
Sent: Wednesday, March 19, 2008 8:55 AM
To: user-ae9b8668bcde@xymon.invalid
Subject: Re: [hobbit] How hobbit server deal with DNS server failure when
doing conn test ?


Pretty confident if the DNS lookup fails it times out and marks the conn red
=(  If you don't need it to do a DNS lookup simply add testip.


On 3/19/08, T.J. Yang <user-8e841282cda5@xymon.invalid <mailto:user-8e841282cda5@xymon.invalid> >
wrote: 

I remember somewhere in the manpages,

The hobbit server when doing fping conn test, it will try using FQDN and if
not resolvable,
it will use the ip address(from bb-hosts) file.

Is this a correct statement ?

I will summarize the answer here

http://en.wikibooks.org/wiki/System_Monitoring_with_Hobbit/Other_Docs/FAQ#Ho
w_does_the_conn_test_work_if_the_first_ping_doesn.27t_respond_.3F
<http://en.wikibooks.org/wiki/System_Monitoring_with_Hobbit/Other_Docs/FAQ#H
ow_does_the_conn_test_work_if_the_first_ping_doesn.27t_respond_.3F> 


tj


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Josh Luthman
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