Error: Host name, alias, or address is NULL

Robert Mena rt_mena at yahoo.com
Mon Jun 30 22:05:36 CEST 2003


Hi,

I am migrating my config from netsaint to nagios but
got stuck in one error.

I have erased the hosts.cfg and defined just one host.

define host{
        name                            lan
        retain_status_information       1       ;
Retain status information across program restarts
        retain_nonstatus_information    1       ;
Retain non-status information across program restarts
        notification_interval   120
        notification_period     24x7
        notification_options    d,u,r
        check_command                  
check-host-alive
        register                        0
}

define host{
        name                            router
        retain_status_information       1       ;
Retain status information across program restarts
        retain_nonstatus_information    1       ;
Retain non-status information across program restarts
        notification_interval   120
        notification_period     24x7
        notification_options    d,u,r
        check_command                  
check-router-alive
        register                        0
}

define host{
        name                            wireless
        retain_status_information       1       ;
Retain status information across program restarts
        retain_nonstatus_information    1       ;
Retain non-status information across program restarts
        notification_interval   120
        notification_period     24x7
        notification_options    d,u,r
        parents                         wl
        check_command                  
check-host-alive
        register                        0
}

define host{
        use     lan
        name    zeus
        alias                           Email/Radius
        address                         AA.BB.CC.DD
}

That's it.

When I start nagios it prompts

Jun 30 15:46:52 host nagios: Error: Host name, alias,
or address is NULL
Jun 30 15:46:52 host nagios: Error: Could not register
host (config file '/usr/local/nagios/etc/hosts.cfg',
line 57)
Jun 30 15:46:52 host nagios: Nagios 1.1 starting...
(PID=25825)
Jun 30 15:46:52 host nagios: Bailing out due to one or
more errors encountered in the configuration files. 
Run Nagios from the command line with the -v option to
verify your config before restarting. (PID=25825)

Any ideias ?

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