to DDOS attack must generate an alert regardless of organic traffic growth. Anomaly detection algorithms do exactly this - find data that doesn’t look normal (outliers) in a context of other values. update notifications and commands • map element labels • map link labels • map shape labels • graph names Positional macros no longer supported The support for positional macros in item name ($1, Usability improvements to custom graphs The graph page in Monitoring → Hosts → Graphs has seen several usability improvements: • There is no longer a 20 graph limit in the page • A subfilter has been added

following developments have been made: • A new more versatile SVG-based graph widget has been added, while the classic design graph widget is also still available • Widgets no longer contain a footer displaying recovery operations and update operations have been changed to reflect the updated macros New graph widget A new graph widget for the dashboards has been introduced providing a more modern and versatile way drawing approach. For more information see dashboard widgets. The graph widget supported before can still be used and is now renamed to Graph (classic). Time selector redesign The time period selector has

graphs as bars, the new version also introduces the possibility of creating data aggregations in a graph. So you can select the desired period (5 minutes, an hour, a day) and then display an aggregated data for some period: 8 Aggregation can be configured in the data set settings when configuring a graph widget. You may pick the aggregation function and the time interval. Since a data set may comprise including the Clock widget Bar graphs Graph values in the graph widget can now be displayed as bars. To display values as bars, when configuring the data set of the graph, select Bar as the draw option: 16

followed by a Select popup for host group selection • there is also a new option to search for graph name pattern: Top-of-the-page selection dropdowns before Zabbix 5.0. 12 Multi-select fields in trigger/data overview pages and widgets Please see individual pages for details on changed host/host group/graph/etc selection: • Monitoring: – Dashboard (host selection with dynamic widgets) – Host graphs – Problem hosts now support filtering problems by tags. Ability to download graph widgets as images Screenshots of Graph widget and Graph (classic) widget can now be downloaded as .png files from the widget

scenarios • Actions • Services • Proxies • Authentication • Users and user groups • Media types • Graph widgets • Maps • User settings Session stored in cookie Zabbix session data is now stored in a widget - visual unit displaying information of a certain kind and source (a summary, a map, a graph, the clock, etc), used in the dashboard. Zabbix API - Zabbix API allows you to use the JSON RPC evaluating data. Prototypes of some other Zabbix entities are also in use in low-level discovery - graph prototypes, host prototypes, host group prototypes, application prototypes. agent autoregistration

These filtering changes are implemented in: • Monitoring: – Problem-related dashboard widgets (Graph, Problem hosts, Problems, Problems by severity) – Problems – Hosts • Configuration: – Templates widget - visual unit displaying information of a certain kind and source (a summary, a map, a graph, the clock, etc), used in the dashboard. Zabbix API - Zabbix API allows you to use the JSON RPC evaluating data. Prototypes of some other Zabbix entities are also in use in low-level discovery - graph prototypes, host prototypes, host group prototypes. agent autoregistration - automated process

prototype cannot be unlinked from a discovered host. Graph widget The vector graph widget has been improved and it is now possible to: • display stacked graph (with filled areas) • add a list of items • clone Previously, the import process would fail on a UUID mismatch of an importable entity (host group, item, graph, etc). For example, it was not possible to import a host group if a host group with the same name 18 widget - visual unit displaying information of a certain kind and source (a summary, a map, a graph, the clock, etc.), used in the dashboard. Zabbix API - Zabbix API allows you to use the JSON RPC

对于 Opera11.00 和 11.01 操作系统来说，这是一个 bug; 更多信息请访问 Zabbix 问题跟踪。 8. Q: 如何更改自定义主题中的图形背景颜色? A: 参照数据库中的 graph_theme 表和主题帮助。 9. Q: 调试等级为 4 时，在 zabbix server/proxy 日志中出现”Trapper got [] len 0” 信息，这是什么原因? A: 很 01; see Zabbix issue tracker for more information. 8. Q: How can I change graph background colour in a custom theme? A: See graph_theme table in the database and theming guide. 9. Q: With DebugLevel 4 notifications → Problem update notifications → Icon/shape labels in maps1 4 → Link labels in maps4 → Graph names7 → Trigger expressions9 Simple macros, as used in building trigger expressions. Supported

Pie chart. As part of this development, a Show aggregation function checkbox has been added to the graph widget configuration (in Legend tab). Top triggers A Top triggers widget has been added to dashboard Previously, on a template dashboard, you could create only the following widgets: Clock, Graph (classic), Graph prototype, Item value, Plain text, URL. Now template dashboards support the creation of Item tags (for Data overview widget), Scenario tags (for Web monitoring widget); Problem tags (for Graph, Problem hosts, Problems, Problems by severity, and Trigger overview widget); • The action link

based on the thresholds set and the latest received value. Usability updates for Graph widget When configuring a Graph widget, it is now possible to rename data sets by customizing the Data set label easier to identify data sets in widget configuration, as well as identify aggregated data sets in graph Legend. Autocomplete functionality of the widget has also been improved. The Item pattern field suggestions widget - visual unit displaying information of a certain kind and source (a summary, a map, a graph, the clock, etc.), used in the dashboard. Zabbix API - Zabbix API allows you to use the JSON RPC