IP and hostname mapping control

[Paul Weaver]

We have a service that checks dns addresses. We run it against some of our internal DNS servers (we're checking the DNS server is resolving, so the check belongs on the dns server rather than the host you're interested in).
 
define service{
        use                             infrastructure-dns-service
        host_name                       dc1025,dc1026,dc1030
        service_description             DNS-myserver
        check_command                   check_dns!myserver.com!4.5.6.7
        }

define command{
        command_name    check_dns
        command_line    $USER1$/check_dns -H $ARG1$ -s $HOSTADDRESS$ -a $ARG2$
        }

(I believe check_dns is a standard plugin)

So you'd have:
	define service {
	    use            local-service
	    host_name      local.dns.server
	    service_description   DNS resolving foo.mylan.com
	    check_command  check_dns!foo.mylan.com!192.168.0.1
	}

--

The probability of someone watching you is proportional to the stupidity of your action.

Paul Weaver    
Systems Development Engineer
BBC FM&T BETG TDD SDT 


________________________________

	From: Network Operation Center FMC Luxemburg [mailto:NOC at eurofmc.com] 
	Sent: 29 June 2010 06:40
	To: Nagios Users List
	Subject: [Nagios-users] IP and hostname mapping control
	
	
	Hi everybody,
	
	I'm looking for a way to check out the mapping between a hostname and IP address.
	
	Example: IP 192.168.0.1 exists and if the hostname foo.mylan.com is not associated with this IP, I would have an alarm.
	
	Indeed the script below returns no alarm :
	
	define host {
	    use             unix-server
	    host_name       foo.mylan.com  
	    display_name    foo
	    address         192.168.0.1
	    check_command   check_http
	}
	
	define service {
	    use            local-service
	    host_name      foo.mylan.com
	    service_description   HTTP local
	    check_command  check_http
	}
	
	Any idea?
	
	Thanks a lot
	
	François
	
	-- 
	Network Operation Center
	        LUXEMBURG 


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