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SMS Server Tools 3 Agent alert notifications

Learn how to send notifications to smstools3 using Netdata's Agent alert notification feature, which supports dozens of endpoints, user roles, and more.


This file assumes you have read the Introduction to Agent alert notifications, detailing how the Netdata Agent's alert notification method works.

The SMS Server Tools 3 is a SMS Gateway software which can send and receive short messages through GSM modems and mobile phones.


You will need:

  • to install and configure smsd

  • To ensure that the user netdata can execute sendsms. Any user executing sendsms needs to:

    • have write permissions to /tmp and /var/spool/sms/outgoing

    • be a member of group smsd

      To ensure that the steps above are successful, just su netdata and execute sendsms phone message.

  • terminal access to the Agent you wish to configure

Configure Netdata to send alert notifications to SMS Server Tools 3


This file mentions editing configuration files.

  • To edit configuration files in a safe way, we provide the edit config script located in your Netdata config directory (typically is /etc/netdata) that creates the proper file and opens it in an editor automatically.
    Note that to run the script you need to be inside your Netdata config directory.

It is recommended to use this way for configuring Netdata.

Edit health_alarm_notify.conf, changes to this file do not require restarting Netdata:

  1. Set the path for sendsms, otherwise Netdata will search for it in your system $PATH:

    # The full path of the sendsms command (smstools3).
    # If empty, the system $PATH will be searched for it.
    # If not found, SMS notifications will be silently disabled.
  2. Set SEND_SMS to YES.

  3. Set DEFAULT_RECIPIENT_SMS to the phone number you want the alert notifications to be sent to.
    You can define multiple phone numbers like this: PHONE1 PHONE2.
    All roles will default to this variable if left unconfigured.

You can then have different phone numbers per role, by editing DEFAULT_RECIPIENT_IRC with the phone number you want, in the following entries at the bottom of the same file:


An example of a working configuration would be:

# SMS Server Tools 3 (smstools3) global notification options

Test the notification method

To test this alert notification method refer to the "Testing Alert Notifications" section of the Agent alert notifications page.

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