Zabbix topic: Eighth Ohata: MACRO

Zabbix topic: Eighth Ohata: MACRO

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ZABBIX macro

(1) The macro is an abstraction, He replaces certain text patterns based on a set of predefined rules, and the interpreter or compiler automatically makes this pattern substitution when it encounters a macro, which can be understood as a variable.  
(2) Zabbix has many built-in macros, such as {host.name}, {HOST. IP}, {TRIGGER. DESCRIPTION}, {trigger.name}, {TRIGGER. EVENTS. ACK} etc  
(3) for greater flexibility, Zabbix supports global, template, or host-level custom macros, and user-defined macros use the special syntax format "{$MACRO}", where the macro name can only be   with uppercase letters, numbers, and underscores;
(4) Macros can be applied to information about the item keys and descriptions, trigger name and expression, host interface Ip/dns, and the SNMP protocol of the port, discovery mechanism medium

Priority: Host –> template –> Global
will be used directly after a certain level is found;

Types of macros
Built in: {macro_name}
Custom: {$MARCRO _name} #自建的宏加$

Three macros in the Zabbix Web interface inside the place

Global macros

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Host Macros

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Template Macros

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Example: Define a global macro in admin, apply Web listener to port 80

1. Create a global macro

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2. Add a defined macro to the monitoring item

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3, the macro has been effective, (you can shut down the httpd service, see if the monitoring is normal, my is normal)

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Zabbix topic: Eighth Ohata: MACRO