Zabbix Documentation 4.4

3.04.04.2 (current)In development:4.4 (devel)Unsupported:1.82.02.22.43.23.4

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manual:config:notifications:action:conditions

1 Conditions

Overview

An action is executed only in case an event matches a defined set of conditions. Conditions are set when configuring an action.

Trigger actions

The following conditions can be set for trigger-based actions:

Condition typeSupported operatorsDescription
Applicationequals
contains
does not contain
Specify an application or an application to exclude.
equals - event belongs to a trigger of the item that is linked to the specified application.
contains - event belongs to a trigger of the item that is linked to an application containing the string.
does not contain - event belongs to a trigger of the item that is linked to an application not containing the string.
Host groupequals
does not equal
Specify host groups or host groups to exclude.
equals - event belongs to this host group.
does not equal - event does not belong to this host group.
Specifying a parent host group implicitly selects all nested host groups. To specify the parent group only, all nested groups have to be additionally set with the does not equal operator.
Templateequals
does not equal
Specify templates or templates to exclude.
equals - event belongs to a trigger inherited from this template.
does not equal - event does not belong to a trigger inherited from this template.
Hostequals
does not equal
Specify hosts or hosts to exclude.
equals - event belongs to this host.
does not equal - event does not belong to this host.
Tagequals
does not equal
contains
does not contain
Specify event tag or event tag to exclude.
equals - event has this tag
does not equal - event does not have this tag
contains - event has a tag containing this string
does not contain - event does not have a tag containing this string
Tag valueequals
does not equal
contains
does not contain
Specify event tag and value combination or tag and value combination to exclude.
equals - event has this tag and value
does not equal - event does not have this tag and value
contains - event has a tag and value containing these strings
does not contain - event does not have a tag and value containing these strings
Triggerequals
does not equal
Specify triggers or triggers to exclude.
equals - event is generated by this trigger.
does not equal - event is generated by any other trigger, except this one.
Trigger namecontains
does not contain
Specify a string in the trigger name or a string to exclude.
contains - event is generated by a trigger, containing this string in the name. Case sensitive.
does not contain - this string cannot be found in the trigger name. Case sensitive.
Note: Entered value will be compared to trigger name with all macros expanded.
Trigger severityequals
does not equal
is greater than or equals
is less than or equals
Specify trigger severity.
equals - equal to trigger severity
does not equal - not equal to trigger severity
is greater than or equals - more or equal to trigger severity
is less than or equals - less or equal to trigger severity
Time periodin
not in
Specify a time period or a time period to exclude.
in - event time is within the time period.
not in - event time is not within the time period.
See the time period specification page for description of the format.
User macros are supported, since Zabbix 3.4.0.
Problem is suppressedno
yes
Specify if the problem is suppressed (not shown) because of host maintenance.
no - problem is not suppressed.
yes - problem is suppressed.

Discovery actions

The following conditions can be set for discovery-based events:

Condition typeSupported operatorsDescription
Host IPequals
does not equal
Specify an IP address range or a range to exclude for a discovered host.
equals - host IP is in the range.
does not equal - host IP is not in the range.
It may have the following formats:
Single IP: 192.168.1.33
Range of IP addresses: 192.168.1-10.1-254
IP mask: 192.168.4.0/24
List: 192.168.1.1-254, 192.168.2.1-100, 192.168.2.200, 192.168.4.0/24
Support for spaces in the list format is provided since Zabbix 3.0.0.
Service typeequals
does not equal
Specify a service type of a discovered service or a service type to exclude.
equals - matches the discovered service.
does not equal - does not match the discovered service.
Available service types: SSH, LDAP, SMTP, FTP, HTTP, HTTPS (available since Zabbix 2.2 version), POP, NNTP, IMAP, TCP, Zabbix agent, SNMPv1 agent, SNMPv2 agent, SNMPv3 agent, ICMP ping, telnet (available since Zabbix 2.2 version).
Service portequals
does not equal
Specify a TCP port range of a discovered service or a range to exclude.
equals - service port is in the range.
does not equal - service port is not in the range.
Discovery ruleequals
does not equal
Specify a discovery rule or a discovery rule to exclude.
equals - using this discovery rule.
does not equal - using any other discovery rule, except this one.
Discovery checkequals
does not equal
Specify a discovery check or a discovery check to exclude.
equals - using this discovery check.
does not equal - using any other discovery check, except this one.
Discovery objectequalsSpecify the discovered object.
equals - equal to discovered object (a device or a service).
Discovery statusequalsUp - matches 'Host Up' and 'Service Up' events
Down - matches 'Host Down' and 'Service Down' events
Discovered - matches 'Host Discovered' and 'Service Discovered' events
Lost - matches 'Host Lost' and 'Service Lost' events
Uptime/Downtimeis greater than or equals
is less than or equals
Uptime for 'Host Up' and 'Service Up' events. Downtime for 'Host Down' and 'Service Down' events.
is greater than or equals - is more or equal to. Parameter is given in seconds.
is less than or equals - is less or equal to. Parameter is given in seconds.
Received valueequals
does not equal
is greater than or equals
is less than or equals
contains
does not contain
Specify the value received from an agent (Zabbix, SNMP) check in a discovery rule. Case sensitive string comparison. If several Zabbix agent or SNMP checks are configured for a rule, received values for each of them are checked (each check generates a new event which is matched against all conditions).
equals - equal to the value.
does not equal - not equal to the value.
is greater than or equals - more or equal to the value.
is less than or equals - less or equal to the value.
contains - contains the substring. Parameter is given as a string.
does not contain - does not contain the substring. Parameter is given as a string.
Proxyequals
does not equal
Specify a proxy or a proxy to exclude.
equals - using this proxy.
does not equal - using any other proxy except this one.
Service checks in a discovery rule, which result in discovery events, do not take place simultaneously. Therefore, if multiple values are configured for Service type, Service port or Received value conditions in the action, they will be compared to one discovery event at a time, but not to several events simultaneously. As a result, actions with multiple values for the same check types may not be executed correctly.

Auto-registration actions

The following conditions can be set for actions based on active agent auto-registration:

Condition typeSupported operatorsDescription
Host metadatacontains
does not contain
matches
does not match
Specify host metadata or host metadata to exclude.
contains - host metadata contains the string.
does not contain - host metadata does not contain the string.
Host metadata can be specified in an agent configuration file.
matches - host metadata matches regular expression.
does not match - host metadata does not match regular expression.
Host namecontains
does not contain
matches
does not match
Specify a host name or a host name to exclude.
contains - host name contains the string.
does not contain - host name does not contain the string.
matches - host name matches regular expression.
does not match - host name does not match regular expression.
Proxyequals
does not equal
Specify a proxy or a proxy to exclude.
equals - using this proxy.
does not equal - using any other proxy except this one.

Internal event actions

The following conditions can be set for actions based on internal events:

Condition typeSupported operatorsDescription
Applicationequals
contains
does not contain
Specify an application or an application to exclude.
equals - event belongs to an item that is linked to the specified application.
contains - event belongs to an item that is linked to an application containing the string.
does not contain - event belongs to an item that is linked to an application not containing the string.
Event type equals Item in “not supported” state - matches events where an item goes from a 'normal' to 'not supported' state
Low-level discovery rule in “not supported” state - matches events where a low-level discovery rule goes from a 'normal' to 'not supported' state
Trigger in “unknown” state - matches events where a trigger goes from a 'normal' to 'unknown' state
Host groupequals
does not equal
Specify host groups or host groups to exclude.
equals - event belongs to this host group.
does not equal - event does not belong to this host group.
Templateequals
does not equal
Specify templates or templates to exclude.
equals - event belongs to an item/trigger/low-level discovery rule inherited from this template.
does not equal - event does not belong to an item/trigger/low-level discovery rule inherited from this template.
Hostequals
does not equal
Specify hosts or hosts to exclude.
equals - event belongs to this host.
does not equal - event does not belong to this host.

Type of calculation

The following options of calculating conditions are available:

  • And - all conditions must be met

Note that using “And” calculation is disallowed between several triggers when they are selected as a Trigger= condition. Actions can only be executed based on the event of one trigger.

  • Or - enough if one condition is met
  • And/Or - combination of the two: AND with different condition types and OR with the same condition type, for example:

Host group equals Oracle servers
Host group equals MySQL servers
Trigger name contains 'Database is down'
Trigger name contains 'Database is unavailable'

is evaluated as

(Host group equals Oracle servers or Host group equals MySQL servers) and (Trigger name contains 'Database is down' or Trigger name contains 'Database is unavailable')

  • Custom expression - a user-defined calculation formula for evaluating action conditions. It must include all conditions (represented as uppercase letters A, B, C, …) and may include spaces, tabs, brackets ( ), and (case sensitive), or (case sensitive), not (case sensitive).

While the previous example with And/Or would be represented as (A or B) and (C or D), in a custom expression you may as well have multiple other ways of calculation:

(A and B) and (C or D)
(A and B) or (C and D)
((A or B) and C) or D
(not (A or B) and C) or not D
etc.

Actions disabled due to deleted objects

If a certain object (host, template, trigger, etc) used in an action condition/operation is deleted, the condition/operation is removed and the action is disabled to avoid incorrect execution of the action. The action can be re-enabled by the user.

This behavior takes place when deleting:

  • host groups (“host group” condition, “remote command” operation on a specific host group);
  • hosts (“host” condition, “remote command” operation on a specific host);
  • templates (“template” condition, “link to template” and “unlink from template” operations);
  • triggers (“trigger” condition);
  • discovery rules (when using “discovery rule” and “discovery check” conditions).

Note: If a remote command has many target hosts, and we delete one of them, only this host will be removed from the target list, the operation itself will remain. But, if it's the only host, the operation will be removed, too. The same goes for “link to template” and “unlink from template” operations.

Actions are not disabled when deleting a user or user group used in a “send message” operation.