Problem: Picking up wrong server hostname with check_http

[Robert Hulme]

I am trying to use the check_http plugin in Nagios 3 to see if 
relibase.ebi.ac.uk is OK.

When I call it from the command prompt I get this:
trueman% /usr/local/nagios/libexec/check_http relibase
HTTP WARNING: HTTP/1.1 404 Not Found
trueman% /usr/local/nagios/libexec/check_http relibase.ebi.ac.uk
HTTP WARNING: HTTP/1.1 404 Not Found
trueman% /usr/local/nagios/libexec/check_http relibase.ebi.ac.uk.
HTTP WARNING: HTTP/1.1 404 Not Found

However if I access relibase in Firefox (or with wget) the index page is 
returned normally.

A little digging later has revealed that there are two relibases:

trueman% dig relibase

; <<>> DiG 9.3.4 <<>> relibase
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 12743
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;relibase.                      IN      A

;; Query time: 0 msec
;; SERVER: 172.22.2.11#53(172.22.2.11)
;; WHEN: Thu Oct  4 14:24:29 2007
;; MSG SIZE  rcvd: 26

trueman% dig relibase.ebi.ac.uk

; <<>> DiG 9.3.4 <<>> relibase.ebi.ac.uk
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 28374
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;relibase.ebi.ac.uk.            IN      A

;; ANSWER SECTION:
relibase.ebi.ac.uk.     454     IN      CNAME   www4.ebi.ac.uk.
www4.ebi.ac.uk.         2612    IN      A       193.62.197.14

;; Query time: 0 msec
;; SERVER: 172.22.2.11#53(172.22.2.11)
;; WHEN: Thu Oct  4 14:24:31 2007
;; MSG SIZE  rcvd: 71

Is there a way to force check_http to use the correct one? It seems to 
be resolving the first one rather than the second one.

If I try to access "http://relibase/" from my desktop I get "The web 
server you are trying to contact has closed down.  For further 
information, please contact support at ebi.ac.uk" which is not what I get 
if I access "http://relibase.ebi.ac.uk/".

I'm going to try to get the systems deparment here to fix this so that 
both queries, but is there a work around? (other than using www4 or the 
IP directly).

Thanks
-Rob

-- 
Think of how stupid the average person is, and realize half of them are 
stupider than that.
-- George Carlin


-------------------------------------------------------------------------
This SF.net email is sponsored by: Splunk Inc.
Still grepping through log files to find problems?  Stop.
Now Search log events and configuration files using AJAX and a browser.
Download your FREE copy of Splunk now >> http://get.splunk.com/
_______________________________________________
Nagios-users mailing list
Nagios-users at lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nagios-users
::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
::: Messages without supporting info will risk being sent to /dev/null