Blocking ICMP and other issues

[tb at itswny.com]

I have just installed Fedora 9 and then setup Nagios. I followed Quick Install and it worked wonderfully. I want to Monitor 1 remote server's SMTP. I have been experimenting with 2 configuration files (Pasted at the end for reference) without much luck. With config #1, I receive messages telling me the host is down constantly (I assume this is because it blocks ICMP ping requests) I then found a sample on one of the forums which I tried to implement; but I recieve no messages and Nagios still says host is down in the browser. Basically I'd like to show the host as up and recieve messages when SMTP is unavailable. Does anyone have any samples (Pref with comments) that I can experiment with? I am particually interested in monitoring publically available services.



#==================================
#CONFIG FILE #1
#==================================
define host{
use windows-server 
host_name myserver 
alias My Mail 
address xxx.xxx.xxx.xxx
checks_enabled 0
}

define hostgroup{
hostgroup_name windows-servers 
alias Windows Servers 
}
#===============================EOF

#==================================
#CONFIG FILE #2
#==================================
define command{
command_name check_upmail
command_line $USER1$/check_smtp -H 64.62.20.243
}

define host{
use generic-host
host_name myserver
alias My Mail 
address xxx.xxx.xxx.xxx
check_command check_upmail
max_check_attempts 10
notification_interval 120
notification_period 24x7
notification_options n
contact_groups admins
}
===============================EOF


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