Zabbix Documentation 5.0

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manual:web_interface:frontend_sections:administration:scripts

7 Scripts

Overview

In the Administration → Scripts section user-defined global scripts can be configured and maintained.

These scripts, depending on the set user permissions, then become available for execution by clicking on the host in various frontend locations (Dashboard, Problems, Latest data, Maps) and can also be run as an action operation. The scripts are executed on the Zabbix server or agent.

A listing of existing scripts with their details is displayed.

Displayed data:

ColumnDescription
Name Name of the script. Clicking on the script name opens the script configuration form.
Type Script type is displayed - Script or IPMI command.
Execute on It is displayed whether the script will be executed on Zabbix server or agent.
Commands All commands to be executed within the script are displayed.
User group The user group that the script is available to is displayed (or All for all user groups).
Host group The host group that the script is available for is displayed (or All for all host groups).
Host access The permission level for the host group is displayed - Read or Write. Only users with the required permission level will have access to executing the script.

To configure a new script, click on the Create script button in the top right-hand corner.

Mass editing options

A button below the list offers one mass-editing option:

  • Delete - delete the scripts

To use this option, mark the checkboxes before the respective scripts and click on Delete.

Filter

As the list may contain a number of scripts, it may be needed to filter out the ones you really need.

The Filter link is available above the list of scripts. If you click on it, a filter becomes available where you can filter scripts by name.

Configuring a global script

Script attributes:

ParameterDescription
Name Unique name of the script.
Since Zabbix 2.2 the name can be prefixed with the desired path, for example, Default/, putting the script into the respective directory. When accessing scripts through the menu in monitoring sections, they will be organized according to the given directories.
A script cannot have the same name as an existing directory (and vice versa). A script name must be unique within its directory.
Unescaped script names are validated for uniqueness, i.e. “Ping” and “\Ping” cannot be added in the same folder. A single backslash escapes any symbol directly after it. For example, characters '/' and '\' can be escaped by backslash, i.e. \/ or \\.
Type Click the respective button to select script type - IPMI command or Script.
Execute on Click the respective button to execute the script on:
Zabbix agent - the script will be executed by Zabbix agent on the host
Zabbix server (proxy) - the script will be executed by Zabbix server or proxy - depending on whether the host is monitored by server or proxy
Zabbix server - the script will be executed by Zabbix server only
The option to execute scripts on Zabbix agent is available since Zabbix 2.0 version (providing remote commands are enabled in the EnableRemoteCommands parameter in Zabbix agent configuration file).
Commands Enter full path to the commands to be executed within the script.
The following macros are supported in the commands: {HOST.CONN}, {HOST.IP}, {HOST.DNS}, {HOST.HOST}, {HOST.NAME}. If a macro may resolve to a value with spaces (for example, host name), don't forget to quote as needed.
Since Zabbix 2.2, user macros are supported in script commands.
Description Enter a description for the script.
User group Select the user group that the script will be available to (or All for all user groups).
Host group Select the host group that the script will be available for (or All for all host groups).
Required host permissions Select the permission level for the host group - Read or Write. Only users with the required permission level will have access to executing the script.
Enable confirmation Mark the checkbox to display a confirmation message before executing the script. This feature might be especially useful with potentially dangerous operations (like a reboot script) or ones that might take a long time.
Confirmation text Enter a custom confirmation text for the confirmation popup enabled with the checkbox above (for example, Remote system will be rebooted. Are you sure?). To see how the text will look like, click on Test confirmation next to the field.
Since Zabbix 2.2, the confirmation text will expand host name macros - {HOST.HOST}, {HOST.NAME}, host connection macros - {HOST.IP}, {HOST.DNS}, {HOST.CONN} and user macros. Note: The macros will not be expanded when testing the confirmation message.

Script execution and result

Scripts run by Zabbix server are executed by the order described in Command execution section including exit code checking. The script result will be displayed in a pop-up window that will appear after the script is run.

Note: The return value of the script is standard output together with standard error.

See example of a script and the result window below:

uname
uname --non-existing-flag
/tmp/non_existing_script.sh

Script timeout

Zabbix agent

You may encounter a situation when timeout occurs while executing a script.

See example of a script running on Zabbix agent and the result window below:

Error message in this case is the following:

Timeout while executing a shell script.

In order to avoid such a situation, it is advised to optimize the script itself (instead of adjusting Timeout parameter to a corresponding value (in our case, > ‘5’) by modifying the Zabbix agent configuration and Zabbix server configuration).

In case still the Timeout parameter is changed in Zabbix agent configuration following error message appears:

Get value from agent failed: ZBX_TCP_READ() timed out.

It means that modification was made in Zabbix agent configuration and it is required to modify Timeout setting also in Zabbix server configuration.

Zabbix server/proxy

See example of a script running on Zabbix server and the result window below:

It is also advised to optimize the script itself (instead of adjusting TrapperTimeout parameter to a corresponding value (in our case, > ‘11’) by modifying the Zabbix server configuration).