Page 1 of 2
Nagios Core - Problem with E-Mail Notifications
Posted: Wed Apr 20, 2016 8:43 am
by Bone8Head
Good Morning,
I have a problem with the E-Mail Notifications in my Nagios Core.
Can you check my Files please, and tell me if I did something wrong?
There are an example of one of my Command (The E-Mail Commands that I have) - Contact - Service - Host.
Commands:
Code: Select all
# 'notify-host-by-email' command definition
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" | /usr/bin/mail -s "** $NOTIFICATIONTYPE$ Host Alert: $HOSTNAME$ is $HOSTSTATE$ **" $CONTACTEMAIL$
}
# 'notify-service-by-email' command definition
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" | /usr/bin/mail -s "** $NOTIFICATIONTYPE$ Service Alert: $HOSTALIAS$/$SERVICEDESC$ is $SERVICESTATE$ **" $CONTACTEMAIL$
}
# 'process-host-perfdata' command definition
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" >> /var/lib/nagios/host-perfdata.out
}
# 'process-service-perfdata' command definition
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" >> /var/lib/nagios/service-perfdata.out
}
Code: Select all
define contact{
contact_name nagiosadmin ; Short name of user
use generic-contact ; Inherit default values from generic-contact template (defined above)
alias xxx ; Full name of user
email [email protected] ; <<***** CHANGE THIS TO YOUR EMAIL ADDRESS ******
service_notification_period 24x7
host_notification_period 24x7
service_notification_options w,u,c,r
host_notification_options d,r
service_notification_commands notify-service-by-email
host_notification_commands notify-host-by-email
}
define contactgroup{
contactgroup_name admins
alias Nagios Administrators
members nagiosadmin
}
Code: Select all
define service{
use generic-service
servicegroups xxx
host_name xxx
service_description Ping
check_command check_ping!200.0,40%!400.0,80%
check_interval 5
retry_interval 5
max_check_attempts 10
check_period 24x7
notification_interval 300
notification_period 24x7
notification_options w,c,r
}
Code: Select all
define host{
hostgroups xxx
host_name xxx ; The name we're giving to this host
alias xxx ; A longer name associated with the host
address xxx ; IP address of the host
check_command check-host-alive
register 1
max_check_attempts 10
contacts nagiosadmin
check_interval 5
retry_interval 1
contacts nagiosadmin
check_period 24x7
notification_interval 300
notification_period 24x7
}
Thank you very much.
Re: Nagios Core - Problem with E-Mail Notifications
Posted: Wed Apr 20, 2016 10:10 am
by rkennedy
Can you please emulate triggering a notification, and post your /var/log/maillog file?
Additionally, when it should be sending the notification, do you see it being triggered under Reports -> Notifications? (please attach a screenshot of this page)
Re: Nagios Core - Problem with E-Mail Notifications
Posted: Thu Apr 21, 2016 1:53 am
by Bone8Head
rkennedy wrote:Can you please emulate triggering a notification, and post your /var/log/maillog file?
Additionally, when it should be sending the notification, do you see it being triggered under Reports -> Notifications? (please attach a screenshot of this page)
Ok, like yesterday i Did "Send Custom Notification" ---> Forced - Broadcast (at 08:49).
Service Notifications:
Mailog File:
Code: Select all
Apr 21 08:49:53 nagioscorefe postfix/pickup[10731]: 7DEA120BD0: uid=500 from=<nagios>
Apr 21 08:49:53 nagioscorefe postfix/cleanup[24693]: 7DEA120BD0: message-id=<[email protected]>
Apr 21 08:49:53 nagioscorefe postfix/qmgr[1831]: 7DEA120BD0: from=<[email protected]>, size=760, nrcpt=1 (queue active)
Apr 21 08:49:53 nagioscorefe postfix/local[24695]: 7DEA120BD0: to=<[email protected]>, orig_to=<nagios@localhost>, relay=local, delay=0.15, delays=0.08/0.03/0/0.04, dsn=2.0.0, status=sent (delivered to mailbox)
Apr 21 08:49:53 nagioscorefe postfix/qmgr[1831]: 7DEA120BD0: removed
Is like "Status - Sent".
Re: Nagios Core - Problem with E-Mail Notifications
Posted: Thu Apr 21, 2016 1:05 pm
by rkennedy
Did you run service nagios restart after making changes to your contact definition?
What OS did you install Core on, and what is the output of which mail?
Re: Nagios Core - Problem with E-Mail Notifications
Posted: Fri Apr 22, 2016 4:34 am
by Bone8Head
rkennedy wrote:Did you run service nagios restart after making changes to your contact definition?
What OS did you install Core on, and what is the output of which mail?
1) Yes, I always did service nagios restart
2) CentOS 6.7
3)
Code: Select all
[root@nagioscorefe /]# which mail
/bin/mail
Re: Nagios Core - Problem with E-Mail Notifications
Posted: Fri Apr 22, 2016 2:02 pm
by hsmith
Do you have access to your mail logs to make sure this isn't getting filtered?
Re: Nagios Core - Problem with E-Mail Notifications
Posted: Mon Apr 25, 2016 1:42 am
by Bone8Head
hsmith wrote:Do you have access to your mail logs to make sure this isn't getting filtered?
Yes, the E-Mail isn't getting filtered.
Re: Nagios Core - Problem with E-Mail Notifications
Posted: Mon Apr 25, 2016 10:04 am
by rkennedy
Bone8Head wrote:rkennedy wrote:Did you run service nagios restart after making changes to your contact definition?
What OS did you install Core on, and what is the output of which mail?
1) Yes, I always did service nagios restart
2) CentOS 6.7
3)
Code: Select all
[root@nagioscorefe /]# which mail
/bin/mail
Code: Select all
# 'notify-host-by-email' command definition
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" | /usr/bin/mail -s "** $NOTIFICATIONTYPE$ Host Alert: $HOSTNAME$ is $HOSTSTATE$ **" $CONTACTEMAIL$
}
I believe this is the issue. Your command is referencing /usr/bin/mail, and your server is using /bin/mail. Try updating your notify-host-by-email and notify-service-by-email to use /bin/mail rather then /usr/bin/mail.
Re: Nagios Core - Problem with E-Mail Notifications
Posted: Tue Apr 26, 2016 1:58 am
by Bone8Head
rkennedy wrote:Bone8Head wrote:rkennedy wrote:Did you run service nagios restart after making changes to your contact definition?
What OS did you install Core on, and what is the output of which mail?
1) Yes, I always did service nagios restart
2) CentOS 6.7
3)
Code: Select all
[root@nagioscorefe /]# which mail
/bin/mail
Code: Select all
# 'notify-host-by-email' command definition
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" | /usr/bin/mail -s "** $NOTIFICATIONTYPE$ Host Alert: $HOSTNAME$ is $HOSTSTATE$ **" $CONTACTEMAIL$
}
I believe this is the issue. Your command is referencing /usr/bin/mail, and your server is using /bin/mail. Try updating your notify-host-by-email and notify-service-by-email to use /bin/mail rather then /usr/bin/mail.
As you said I edited in the commands.cfg all the usr/bin/mail to /bin/mail (4), but nothing changed now..
Re: Nagios Core - Problem with E-Mail Notifications
Posted: Tue Apr 26, 2016 7:34 am
by Bone8Head
Another thing: now I was looking at the
maillog file in /var/log/, and I see one thing (when I try to force a notification from WEB GUI):
Code: Select all
Apr 26 14:25:17 nagioscorefe postfix/qmgr[1831]: 74AA520BE6: from=<[email protected]>, size=811, nrcpt=1 (queue active)
Apr 26 14:25:17 nagioscorefe postfix/local[18885]: 74AA520BE6: to=<[email protected]>, orig_to=<nagios@localhost>, relay=local, delay=0.1, delays=0.06/0.02/0/0.01, dsn=2.0.0, status=sent (delivered to mailbox)
This E-Mail address "to=<
[email protected]" is different from the one that I writed in the commands file (notify host mail etc.)...
So it seems like that nagios is sending an E-Mail to
[email protected] and not to the mine?
This is can be the problem?
Actually I find this Address "
[email protected]" in the nagios.cfg file.
Code: Select all
# ADMINISTRATOR EMAIL/PAGER ADDRESSES
# The email and pager address of a global administrator (likely you).
# Nagios never uses these values itself, but you can access them by
# using the $ADMINEMAIL$ and $ADMINPAGER$ macros in your notification
# commands.
[email protected]
admin_pager=pagenagios@localhost
I tried to edit this and put in my E-Mail, but still nothing.
This is what I see in the
Nagios Core GUI ---> Configuration --- Web Config ---> Contacts.
Last thing, Nagios Core don't need the "E-Mail Configuration" (Pop Server, Smtp Server, Authentication credentials) for sending the E-Mail?
Thanks.