Forum Discussion

DhruvaS_267726's avatar
DhruvaS_267726
Icon for Nimbostratus rankNimbostratus
Sep 15, 2017

Email Alert Configuration on F5 11.6 for Node Down/UP

Hi Devcentral,

I would like to do the Email Alert Configuration (F5 should trigger an email alert if the Node goes down).

I have tried with the below configuration but not succeeded.

Does anyone have any idea in order to accomplish that?

Configuration:

  1. Backup the /config/user_alert.conf file by typing the following command: cp /config/user_alert.conf /config/user_alert.conf.SOL3667

  2. Modify the permissions on the user_alert.conf chmod 644 /config/user_alert.conf

3. Edit the /config/user_alert.conf file as below - 
 alert BIGIP_NODE_DOWN {
 snmptrap OID="1.3.6.1.4.1.3375.2.4.0.12";
 email toaddress="abcd@xyz.com"
 fromaddress="loadbalancer@f5.com"
 body="The test the Server Status!"
} 
 alert BIGIP_NODE_UP {
 snmptrap OID="1.3.6.1.4.1.3375.2.4.0.13";
 email toaddress="abcd@xyz.com"
 fromaddress="loadbalancer@f5.com"
 body="The test the Server Status!"
}

  1. Restore the permissions on the user_alert.conf file chmod 444 /config/user_alert.conf

  2. Restart the alertd process tmsh restart /sys service alertd

  3. Save save /sys config

Configure the SMTP:

Name: SMTP_Email_Alert Partition : Common SMTP Hostname : 193.172.9.194 Port : 25 Local Hostname : sa-infapp120 From Address : loadbalancer@raet.com Encryption : No

Thanks in advance,

Best Regards.

Dhruva S

application delivery
LTM
  • DhruvaS_267726's avatar
    DhruvaS_267726
    Icon for Nimbostratus rankNimbostratus
    Sep 15, 2017

    Hi Preslav,

    Thanks for your time and effort to share the details.

    I have configured below alert in the /config/user_alert.conf

     alert BIGIP_NODE_DOWN "10.6.33.246 monitor status down" {
 snmptrap OID=".1.3.6.1.4.1.3375.2.4.0.12";
 email toaddress="Dhruva@abc.com"
 fromaddress="loadbalancer@f5.com"
 body="The test the Server Status!"
 }

    Still am not getting any email alerts. Please let me know if anything is missing. Can you please share me the details steps needs to be done.

    Also,

     1. Is there any way to check the logs of above alerts for troubleshooting ?
 2. If want to monitor 50+ nodes in a partition, is there any way to use single alert instead of using multiple stanzas for each Node/IP Address.

    Thanks in advance,

    Dhruva S.

  • Kevin_K_51432's avatar
    Kevin_K_51432
    Historic F5 Account
    Sep 15, 2017

    Greetings,

     

    I wonder if the mailhub discussed in this this article may be the issue:

     

    https://support.f5.com/csp/article/K15288

     

    Perhaps review these sections:

     

    Configuring the BIG-IP system to use a DNS lookup server

     

    Configuring the BIG-IP system to use an SMTP server (11.5.0 and later)

     

    Also, could be a bug if you are running 13.0.0 or later:

     

    https://support.f5.com/csp/article/K15188934

     

    Let us know if this works for you and thank you! Kevin