Nagios uses YAML configuration files, including global settings, command definitions, event handlers, macros, host groups, contacts, hosts, and service configurations. To configure a YAML file, you need to add or modify the configuration section according to the specified structure, use indents and comments to improve readability, and finally save and reload the Nagios configuration.
Nagios Using YAML Configuration Files
Nagios is a popular monitoring tool that uses YAML as the format of its configuration files. YAML (YAML Ain't Markup Language) is a human-readable format used to store data structures.
Structure of YAML file
Nagios' YAML configuration file usually contains the following parts:
- globals: Global settings to configure the overall behavior of Nagios.
- commands: Defines the details of the execution command, used for monitoring and checking.
- event handlers: Specifies that the action is triggered when a specific event occurs.
- macros: Store reusable variables to make configuration files more readable and maintainable.
- host groups: group similar hosts together for easy management.
- contacts: Defines the person or group that receives alarms and notifications.
- hosts: Defines the host to be monitored and its monitoring settings.
- services: Defines the service to be monitored on the host and its monitoring settings.
Configure YAML files
To configure the YAML file for Nagios, follow these steps:
- Open the Nagios configuration file (usually
/etc/nagios/nagios.yml
) using a text editor. - Add or modify the required configuration parts according to the above structure.
- Use indents and comments to improve the readability of configuration files.
- Save and reload the Nagios configuration (
systemctl reload nagios
).
Sample YAML configuration fragment
Here is a sample YAML configuration snippet that shows how to define a host and its services:
<code class="yaml">hosts: webserver: address: 192.168.1.10 groups: ['webservers'] dbserver: address: 192.168.1.20 groups: ['databases'] services: webserver: host: webserver check_command: check_http interval: 300 dbserver: host: dbserver check_command: check_mysql interval: 120</code>
In the above example, webserver
and dbserver
are the hosts to be monitored, check_http
and check_mysql
are commands used to perform monitoring checks, interval
specifies the frequency of checks.
The above is the detailed content of nagios using y streaming. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undress AI Tool
Undress images for free

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

Against the backdrop of violent fluctuations in the cryptocurrency market, investors' demand for asset preservation is becoming increasingly prominent. This article aims to answer how to effectively hedge risks in the turbulent currency circle. It will introduce in detail the concept of stablecoin, a core hedge tool, and provide a list of TOP3 stablecoins by analyzing the current highly recognized options in the market. The article will explain how to select and use these stablecoins according to their own needs, so as to better manage risks in an uncertain market environment.

This article will discuss the world's mainstream stablecoins and analyze which stablecoins have the risk aversion attribute of "gold substitute" in the market downward cycle (bear market). We will explain how to judge and choose a relatively stable value storage tool in a bear market by comparing the market value, endorsement mechanism, transparency, and comprehensively combining common views on the Internet, and explain this analysis process.

This article will introduce several mainstream stablecoins and explain in depth how to evaluate the security of a stablecoin from multiple dimensions such as transparency and compliance, so as to help you understand which stablecoins are generally considered relatively reliable choices in the market, and learn how to judge their "hazard-haven" attributes on your own.

As the market conditions pick up, more and more smart investors have begun to quietly increase their positions in the currency circle. Many people are wondering what makes them take decisively when most people wait and see? This article will analyze current trends through on-chain data to help readers understand the logic of smart funds, so as to better grasp the next round of potential wealth growth opportunities.

Recently, Bitcoin hit a new high, Dogecoin ushered in a strong rebound and the market was hot. Next, we will analyze the market drivers and technical aspects to determine whether Ethereum still has opportunities to follow the rise.

Stable coins maintain price stability by anchoring fiat currencies such as the US dollar, which are mainly divided into three categories: 1. Fiat currency collateralization types such as USDT and USDC; 2. Cryptocurrency collateralization types such as DAI; 3. Algorithm types have higher risks. Mainstream stablecoins include USDT with the highest market value and the best liquidity. USDC is known for its compliance and transparency. DAI relies on the decentralized mechanism. TUSD adopts on-chain real-time audit. BUSD is gradually withdrawing from the market due to supervision. USDP is known for its high compliance and security. Both are widely circulated on mainstream exchanges.

In the cryptocurrency market, stablecoins are an important bridge connecting fiat currencies with digital assets. Although USDT (Tether) accounts for the largest market share, the transparency of its reserves has always attracted much attention. Therefore, it is particularly important for users seeking asset preservation and long-term holdings to understand and configure other more transparent and compliant stablecoins. This article will introduce you in detail three mainstream stablecoins besides USDT: USDC, BUSD and DAI, and analyze their respective characteristics and advantages to help you understand which one is more suitable for your long-term commitment.

Stablecoins are cryptocurrencies with value linked to stable assets. The main types include fiat currency collateral, cryptocurrency collateral and algorithmic. The three mainstream stablecoins are Tether (USDT), USD Coin (USDC) and Dai (DAI). 1. USDT is issued by Tether, with the largest market value and the strongest liquidity, and is widely used in major exchanges; 2. USDC is issued by the Centre Alliance, known for its transparency and compliance, and has gained high trust from institutions; 3. DAI is managed by MakerDAO and is a representative of decentralized stablecoins. It maintains price stability through excessive collateral crypto assets, and is highly favored by DeFi users.
