HAProxy is a reliable, high-performance TCP/HTTP load balancer and proxy server that is commonly used to distribute traffic across multiple backend servers. This guide will show you how to install and configure HAProxy on Rocky Linux 8.

Step 1: Update Your System

Before installing HAProxy, it's essential to update your system's package index. Open your terminal and run:

sudo dnf update -y

Step 2: Install HAProxy

To install HAProxy, execute the following command:

sudo dnf install haproxy -y

Step 3: Configure HAProxy

The main configuration file for HAProxy is located at /etc/haproxy/haproxy.cfg. You can edit this file using your preferred text editor. For example:

sudo nano /etc/haproxy/haproxy.cfg

Below is a basic configuration example:

global
    log /dev/log local0
    maxconn 2000
    user haproxy
    group haproxy

defaults
    log global
    option httplog
    option dontlognull
    timeout client  30s
    timeout server  30s
    timeout connect  4s

frontend http_front
    bind *:80
    default_backend http_back

backend http_back
    server web1 192.168.1.101:80 check
    server web2 192.168.1.102:80 check

Step 4: Start and Enable HAProxy

After configuring HAProxy, start the service and enable it to run on boot:

sudo systemctl start haproxy

sudo systemctl enable haproxy

Step 5: Verify HAProxy Status

You can check the status of HAProxy to ensure it's running correctly:

sudo systemctl status haproxy

Conclusion

You have successfully installed and configured HAProxy on Rocky Linux 8. This load balancer will help you distribute traffic efficiently across your backend servers.

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