Table of contents

Description

Use this option to change alert management settings as shown below:

Settings

Mail mode (TEXT/HTML)

Alerts are by default sent in HTML format. With some mail clients, HTML mails are not correctly displayed or even rejected. This option is used to switch between HTML format and pure TEXT format.

HTML mail example:

TEXT mail example:

Mail recipients list

All alerts coming from monitoring scripts and checks scripts are sent using a common alert script that sends emails (via "sendmail") to the recipients list that can be defined using this option.

The common alert script can be customized too if you prefer not to receive emails and use commands from your monitoring software for example.

Do not add blank lines and set one recipient per line

Mail sender

This optional option allows you to define the sender name instead of the default one (root@hostname)

Create/update alert mail footer

Used to add comments at the end of the mail.

HTML tags like new line, font and bold can be added within the file. In case the format is switched to TEXT, these tags will be automatically removed from the text mail.

Example:

Enable/disable wall alert messages

This option enables or disables (default) the "wall" messages sent via the alert script.

Update/reinstall common alert script

All alerts coming from monitoring scripts and checks scripts are sent using a common alert script.

If this script does not exist, it is initialized by copying an example provided in the kit.

If it exists and is different from the original one, you are invited to reinitialize it from the default one:

• Answer "yes" if you did not change the original script file and you have updated the Linux Toolkit (read the corresponding release notes)
• Do not answer "yes" if you customized your own alert script.
  In case you've overwritten the existing alert script, the previous version can be restored from the "/charon/archive" folder

Example:

This script can be customized to send alerts the way you want, adding for example commands to link with your monitoring tool. It is based on an alert code passed as parameter 1.

All other parameters are information related to the alert. The script uses templates in order to send emails and wall messages (see "/opt/charon/utils/templates/*.mail" and "/opt/charon/utils/templates/*.wall" files if needed).

The table below lists all available values for parameter 1 in case you plan to customize the scripts and send alerts by your own (monitoring software lines of commands, snmptrap, etc...)

Parameter 1 can have the following values:

Select guests log alert level

Select the alert level to send alerts when events are found in the guest log file:

Requires the "charon_logevent" entry activated in the "crontab" file => menu option "Manage recursive jobs: license expiration check, log events (cron)"

This does not affect guest startup alerts. You will receive alerts when a guest starts or stop whatever the level is.

View alerts history

This option will allow you to view the alerts history sent via the alert script. Alerts can be viewed in a continuous way or using a text editor.

Example - Continuous view:

We can see above:

1. A message telling the emulator is started
2. A message telling the license (main one) is found and that also displays its expiration date
3. The main license dongle has been unplugged and the aksusbd monitor reported the alert (immediate). We can see one license (backup one) is still connected
4. Warning messages are sent for the hardware requirements
5. The license dongle was plugged in again.
   We do not see here any dongle removal alert reported by the emulator itself, this is because by default the emulator checks for dongle presence every 1 hour (deferred)

Press CTRL-C to get back to the previous menu

License expiration alerts from guests

This option will toggle on/off the WARNING alerts sent from the guest log file. By default these alerts are sent once per hour 120 hours before expiration whatever the license interval check is set to.

If you have setup the log level alert option to receive WARNING messages then you will receive one alert per hour. This option can be disabled if the expiration check entry is set in the crontab (by default).

Backup licenses (time limited): please take care of the time remaining that will be reported in the license detection alert, if the number of remaining hours is less than 24, you could not receive any alert from the license expiration check that runs everyday at 09:00 AM by default. It is possible to make it run more than once a day in this case.

Alerts simulator

This option allows you to send all the available alerts for testing: