How to configure a highly available monitoring and alarm system on Linux
1. Overview
As enterprises have higher and higher requirements for the availability of IT systems, configuring a highly available monitoring and alarm system has become Crucial. Building a highly available monitoring and alarm system on Linux can help us detect system or application anomalies in a timely manner and take corresponding measures to deal with them and improve the stability and reliability of the system. This article will introduce how to use Zabbix and Keepalived to configure a highly available monitoring and alarm system.
2. Introduction to Zabbix
Zabbix is an open source enterprise-level monitoring solution that can monitor server performance indicators, network device status, application operation, etc. Features of Zabbix include ease of use, flexibility, scalability and high performance. In this article, we will use Zabbix to implement monitoring and alarm functions.
3. Introduction to Keepalived
Keepalived is an open source high availability solution that can ensure the continuity of multiple servers. Keepalived uses Virtual Router Redundancy Protocol (VRRP) to implement server failover. When a server fails, Keepalived can automatically switch traffic to a backup server. In this article, we will use Keepalived to achieve high availability of monitoring and alarm systems.
4. Environment preparation
Before starting the configuration, we need to prepare the following environment:
5. Configure Zabbix server
Install and configure Zabbix server on the master node;
sudo apt-get install zabbix-server sudo nano /etc/zabbix/zabbix_server.conf
Set database related settings in the configuration file information and SMTP server related information.
DBHost=localhost DBName=zabbix DBUser=zabbix DBPassword=zabbix ... AlertScriptsPath=/usr/lib/zabbix/alertscripts
Install Zabbix agent on the standby node.
sudo apt-get install zabbix-agent sudo nano /etc/zabbix/zabbix_agentd.conf
Set the IP address of the Zabbix server in the configuration file.
Server=<主节点IP>
Modify the Keepalived configuration file.
sudo nano /etc/keepalived/keepalived.conf
Change the virtual IP address in the configuration file to your own IP address.
virtual_ipaddress { <虚拟IP地址> }
Start and set to start automatically at boot.
sudo systemctl start zabbix-server sudo systemctl enable zabbix-server sudo systemctl start zabbix-agent sudo systemctl enable zabbix-agent
6. Configure Zabbix monitoring
Access the Zabbix console in the browser.
http://<主节点IP>/zabbix
Follow the interface guidelines to perform initial settings and create an administrator account.
7. Testing and verification
8. Summary
Through the above steps, we successfully configured a highly available monitoring and alarm system. Zabbix provides powerful monitoring and alarm functions, while Keepalived ensures high availability of the system. Through reasonable configuration, customization and testing, we can effectively improve the stability and reliability of the system, discover and solve problems in a timely manner, and provide enterprise-level monitoring and alarm services.
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