How to Install Keepalived on CentOS 7


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Installing Keepalived on CentOS 7

Keepalived is an open-source software application that provides high availability and load balancing for Linux systems. It is typically used in conjunction with other networking tools to ensure that critical services, such as web servers or databases, are always available and distribute the workload evenly across multiple servers.

To install Keepalived on CentOS 7, follow these steps:

Step 1: Update the System

Before installing any software, it is a good practice to update the system to the latest packages.

sudo yum update -y 

Step 2: Install Keepalived

Use the following command to install Keepalived:

sudo yum install keepalived -y 

Step 3: Configure Keepalived

Once Keepalived is installed, you need to configure its settings. The main configuration file for Keepalived is located at /etc/keepalived/keepalived.conf. Edit this file using your preferred text editor:

sudo nano /etc/keepalived/keepalived.conf 

In this file, you can define virtual IP addresses, load balancing settings, and health check parameters for your services. Each configuration file can have multiple virtual IP addresses and server configurations.

Step 4: Start and Enable Keepalived

After configuring Keepalived, start and enable the service using the following command:

sudo systemctl start keepalived sudo systemctl enable keepalived 

Step 5: Verify Keepalived Status

You can check the status of Keepalived using the following command:

sudo systemctl status keepalived 

If everything is configured correctly, you should see a "active (running)" status.


Keepalived is a powerful tool for managing high availability and load balancing in Linux environments. By installing and configuring Keepalived, you can ensure that your critical services remain accessible and evenly distributed across multiple servers.

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