Nagios Support Forum

We are using Nagios Core Version 4.4.5.
How I should configure to get alerts through mail and SMS.

[root@nagiosserver ~]# cd /usr/local/nagios/etc/objects
[root@nagiosserver objects]#
[root@nagiosserver objects]# pwd
/usr/local/nagios/etc/objects
[root@nagiosserver objects]#
[root@nagiosserver objects]# ls
1 commands.cfg contacts.cfg localhost.cfg printer.cfg switch.cfg templates.cfg timeperiods.cfg windows.cfg
[root@nagiosserver objects]#
[root@nagiosserver objects]#
[root@nagiosserver objects]# cat contacts.cfg
###############################################################################
# CONTACTS.CFG - SAMPLE CONTACT/CONTACTGROUP DEFINITIONS
#
#
# NOTES: This config file provides you with some example contact and contact
# group definitions that you can reference in host and service
# definitions.
#
# You don't need to keep these definitions in a separate file from your
# other object definitions. This has been done just to make things
# easier to understand.
#
###############################################################################



###############################################################################
#
# CONTACTS
#
###############################################################################

# Just one contact defined by default - the Nagios admin (that's you)
# This contact definition inherits a lot of default values from the
# 'generic-contact' template which is defined elsewhere.

define contact {

contact_name nagiosadmin ; Short name of user
use generic-contact ; Inherit default values from generic-contact template (defined above)
alias Nagios Admin ; Full name of user
email xxxxx@gmail.com ; <<***** CHANGE THIS TO YOUR EMAIL ADDRESS ******
pager 91-xxxxxxxxxx
service_notification_period 24x7
service_notification_options w,u,c,r,f,s
service_notification_commands notify-service-by-email
host_notification_period 24x7
host_notification_options d,u,r
host_notification_commands notify-host-by-sms,host-notify-by-email
}



###############################################################################
#
# CONTACT GROUPS
#
###############################################################################

# We only have one contact in this simple configuration file, so there is
# no need to create more than one contact group.

define contactgroup {

contactgroup_name admins
alias Nagios Administrators
members nagiosadmin
}
[root@nagiosserver objects]#

Hi!

Usually, the SMS messages are accomplished using an Email-To-Text-Address to send the notification. However, let's start with the email first. Is that working correctly?

You can send a custom notification via the web interface to test, check your spam folder if you don't receive it.

No alert received to my email. Is there any option, to get automatic alerts for warning and critical status.

And after restarting nagios, getting below errors.
Error: Host notification command 'host-notify-by-email' specified for contact 'nagiosadmin' is not defined anywhere!
Error: Host notification command 'notify-host-by-sms' specified for contact 'nagiosadmin' is not defined anywhere!

Can you please post your updated configs showing the command definition for 'host-notify-by-email' and 'notify-host-by-sms'. If these don't exist then they will need to be created.

[root@nagiosserver objects]# pwd
/usr/local/nagios/etc/objects
[root@nagiosserver objects]# ls
1 commands.cfg contacts.cfg localhost.cfg printer.cfg switch.cfg templates.cfg timeperiods.cfg windows.cfg
[root@nagiosserver objects]# cat contacts.cfg
###############################################################################
# CONTACTS.CFG - SAMPLE CONTACT/CONTACTGROUP DEFINITIONS
#
#
# NOTES: This config file provides you with some example contact and contact
# group definitions that you can reference in host and service
# definitions.
#
# You don't need to keep these definitions in a separate file from your
# other object definitions. This has been done just to make things
# easier to understand.
#
###############################################################################



###############################################################################
#
# CONTACTS
#
###############################################################################

# Just one contact defined by default - the Nagios admin (that's you)
# This contact definition inherits a lot of default values from the
# 'generic-contact' template which is defined elsewhere.

define contact {

contact_name nagiosadmin ; Short name of user
use generic-contact ; Inherit default values from generic-contact template (defined above)
alias Nagios Admin ; Full name of user
email d**@gmail.com ; CHANGE THIS TO YOUR EMAIL ADDRESS ******

service_notification_period 24x7
service_notification_options w,u,c,r,f,s
service_notification_commands notify-service-by-email
host_notification_period 24x7
host_notification_options d,u,r
host_notification_commands notify-host-by-email
}



###############################################################################
#
# CONTACT GROUPS
#
###############################################################################

# We only have one contact in this simple configuration file, so there is
# no need to create more than one contact group.

define contactgroup {

contactgroup_name admins
alias Nagios Administrators
members nagiosadmin
}
[root@nagiosserver objects]#

You haven't shown the command definitions themselves, they start with:

Hi,

Please check below commands.cfg file.



[root@nagiosserver objects]# ls
1 commands.cfg contacts.cfg localhost.cfg printer.cfg switch.cfg templates.cfg timeperiods.cfg windows.cfg
[root@nagiosserver objects]# cat commands.cfg
###############################################################################
# COMMANDS.CFG - SAMPLE COMMAND DEFINITIONS FOR NAGIOS 4.4.5
#
#
# NOTES: This config file provides you with some example command definitions
# that you can reference in host, service, and contact definitions.
#
# You don't need to keep commands in a separate file from your other
# object definitions. This has been done just to make things easier to
# understand.
#
###############################################################################



################################################################################
#
# SAMPLE NOTIFICATION COMMANDS
#
# These are some example notification commands. They may or may not work on
# your system without modification. As an example, some systems will require
# you to use "/usr/bin/mailx" instead of "/usr/bin/mail" in the commands below.
#
################################################################################

define command {

command_name notify-host-by-email
command_line /usr/bin/printf "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\nHost: $HOSTNAME$\nState: $HOSTSTATE$\nAddress: $HOSTADDRESS$\nInfo: $HOSTOUTPUT$\n\nDate/Time: $LONGDATETIME$\n" | /bin/mail -s "** $NOTIFICATIONTYPE$ Host Alert: $HOSTNAME$ is $HOSTSTATE$ **" $CONTACTEMAIL$
}



define command {

command_name notify-service-by-email
command_line /usr/bin/printf "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\n\nService: $SERVICEDESC$\nHost: $HOSTALIAS$\nAddress: $HOSTADDRESS$\nState: $SERVICESTATE$\n\nDate/Time: $LONGDATETIME$\n\nAdditional Info:\n\n$SERVICEOUTPUT$\n" | /bin/mail -s "** $NOTIFICATIONTYPE$ Service Alert: $HOSTALIAS$/$SERVICEDESC$ is $SERVICESTATE$ **" $CONTACTEMAIL$
}



################################################################################
#
# SAMPLE HOST CHECK COMMANDS
#
################################################################################

# This command checks to see if a host is "alive" by pinging it
# The check must result in a 100% packet loss or 5 second (5000ms) round trip
# average time to produce a critical error.
# Note: Five ICMP echo packets are sent (determined by the '-p 5' argument)

define command {

command_name check-host-alive
command_line $USER1$/check_ping -H $HOSTADDRESS$ -w 3000.0,80% -c 5000.0,100% -p 5
}



################################################################################
#
# SAMPLE SERVICE CHECK COMMANDS
#
# These are some example service check commands. They may or may not work on
# your system, as they must be modified for your plugins. See the HTML
# documentation on the plugins for examples of how to configure command definitions.
#
# NOTE: The following 'check_local_...' functions are designed to monitor
# various metrics on the host that Nagios is running on (i.e. this one).
################################################################################

define command {

command_name check_local_disk
command_line $USER1$/check_disk -w $ARG1$ -c $ARG2$ -p $ARG3$
}



define command {

command_name check_local_load
command_line $USER1$/check_load -w $ARG1$ -c $ARG2$
}



define command {

command_name check_local_procs
command_line $USER1$/check_procs -w $ARG1$ -c $ARG2$ -s $ARG3$
}



define command {

command_name check_local_users
command_line $USER1$/check_users -w $ARG1$ -c $ARG2$
}



define command {

command_name check_local_swap
command_line $USER1$/check_swap -w $ARG1$ -c $ARG2$
}



define command {

command_name check_local_mrtgtraf
command_line $USER1$/check_mrtgtraf -F $ARG1$ -a $ARG2$ -w $ARG3$ -c $ARG4$ -e $ARG5$
}



################################################################################
# NOTE: The following 'check_...' commands are used to monitor services on
# both local and remote hosts.
################################################################################

define command {

command_name check_ftp
command_line $USER1$/check_ftp -H $HOSTADDRESS$ $ARG1$
}



define command {

command_name check_hpjd
command_line $USER1$/check_hpjd -H $HOSTADDRESS$ $ARG1$
}



define command {

command_name check_snmp
command_line $USER1$/check_snmp -H $HOSTADDRESS$ $ARG1$
}



define command {

command_name check_http
command_line $USER1$/check_http -I $HOSTADDRESS$ $ARG1$
}



define command {

command_name check_ssh
command_line $USER1$/check_ssh $ARG1$ $HOSTADDRESS$
}



define command {

command_name check_dhcp
command_line $USER1$/check_dhcp $ARG1$
}



define command {

command_name check_ping
command_line $USER1$/check_ping -H $HOSTADDRESS$ -w $ARG1$ -c $ARG2$ -p 5
}



define command {

command_name check_pop
command_line $USER1$/check_pop -H $HOSTADDRESS$ $ARG1$
}



define command {

command_name check_imap
command_line $USER1$/check_imap -H $HOSTADDRESS$ $ARG1$
}



define command {

command_name check_smtp
command_line $USER1$/check_smtp -H $HOSTADDRESS$ $ARG1$
}



define command {

command_name check_tcp
command_line $USER1$/check_tcp -H $HOSTADDRESS$ -p $ARG1$ $ARG2$
}



define command {

command_name check_udp
command_line $USER1$/check_udp -H $HOSTADDRESS$ -p $ARG1$ $ARG2$
}



define command {

command_name check_nt
command_line $USER1$/check_nt -H $HOSTADDRESS$ -p 12489 -v $ARG1$ $ARG2$
}



################################################################################
#
# SAMPLE PERFORMANCE DATA COMMANDS
#
# These are sample performance data commands that can be used to send performance
# data output to two text files (one for hosts, another for services). If you
# plan on simply writing performance data out to a file, consider using the
# host_perfdata_file and service_perfdata_file options in the main config file.
#
################################################################################

define command {

command_name process-host-perfdata
command_line /usr/bin/printf "%b" "$LASTHOSTCHECK$\t$HOSTNAME$\t$HOSTSTATE$\t$HOSTATTEMPT$\t$HOSTSTATETYPE$\t$HOSTEXECUTIONTIME$\t$HOSTOUTPUT$\t$HOSTPERFDATA$\n" >> /usr/local/nagios/var/host-perfdata.out
}



define command {

command_name process-service-perfdata
command_line /usr/bin/printf "%b" "$LASTSERVICECHECK$\t$HOSTNAME$\t$SERVICEDESC$\t$SERVICESTATE$\t$SERVICEATTEMPT$\t$SERVICESTATETYPE$\t$SERVICEEXECUTIONTIME$\t$SERVICELATENCY$\t$SERVICEOUTPUT$\t$SERVICEPERFDATA$\n" >> /usr/local/nagios/var/service-perfdata.out
}



###############################################################################
# NRPE CHECK COMMAND
#
# Command to use NRPE to check remote host systems
###############################################################################

define command{
command_name check_nrpe
command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
}
[root@nagiosserver objects]#

Where did you come up with the notify-host-by-sms and host-notify-by-email commands? Did you invent them out of thin air or are you copying them from another example? I ask this because you don't have them defined at all and this is your problem.