How To Install HAProxy on Fedora 42

Load balancing stands as a critical component in modern web infrastructure, ensuring optimal distribution of incoming network traffic across multiple servers. HAProxy (High Availability Proxy) represents one of the most reliable and widely-adopted solutions for achieving this goal on Linux systems. This comprehensive guide walks through the complete installation and configuration process of HAProxy on Fedora 42, enabling system administrators to build robust, scalable server environments.

HAProxy excels at distributing web traffic efficiently, preventing server overload, and maintaining continuous service availability even when individual backend servers fail. Whether managing a high-traffic website, orchestrating microservices architecture, or building redundant hosting infrastructure, HAProxy delivers the performance and reliability demanded by production environments.

Fedora 42 provides an excellent platform for HAProxy deployment, offering cutting-edge packages, strong security features, and seamless integration with modern DevOps workflows. Organizations ranging from small web hosting providers to large-scale cloud platforms rely on this powerful combination for mission-critical applications.

What is HAProxy?

HAProxy functions as a free, open-source software solution that provides high availability load balancing and proxying capabilities for TCP and HTTP-based applications. Operating at both Layer 4 (TCP) and Layer 7 (HTTP) of the OSI model, it intelligently routes client connections to healthy backend servers while continuously monitoring their status.

The software excels in several key areas. It offers sophisticated load distribution algorithms, real-time health monitoring, SSL/TLS termination, session persistence, connection rate limiting, and detailed statistics monitoring. System administrators and DevOps engineers favor HAProxy for its exceptional performance, minimal resource footprint, and battle-tested reliability in production environments.

HAProxy maintains compatibility with various web servers including Apache, Nginx, LiteSpeed, and custom application servers. Its flexibility extends to diverse use cases: HTTP/HTTPS load balancing, TCP connection proxying, SSL offloading, DDoS protection, and API gateway functionality. Major technology companies worldwide deploy HAProxy to handle millions of concurrent connections.

Prerequisites

Before proceeding with HAProxy installation, ensure the following requirements are met. The Fedora 42 system should have sudo or root privileges configured for administrative tasks. Hardware specifications matter: allocate minimum 1GB RAM and 1 CPU core for testing environments, though production deployments benefit from 2GB or more RAM depending on expected traffic volume.

An active internet connection enables package downloads from Fedora repositories. Configure at least two backend servers for meaningful load balancing tests—these can be virtual machines, containers, or separate physical servers running web services. Basic command line proficiency helps navigate the configuration process smoothly.

Firewall access permissions allow opening necessary ports, typically port 80 for HTTP and 443 for HTTPS traffic. Verify system readiness by checking the Fedora version with cat /etc/fedora-release and confirming network connectivity to backend servers using ping commands.

Step 1: Update Your Fedora 42 System

System updates establish a stable foundation for new software installations. Updated packages contain critical security patches, bug fixes, and compatibility improvements that prevent installation conflicts. Fedora’s DNF package manager streamlines this process efficiently.

Execute the update command with administrative privileges:

sudo dnf update -y

The -y flag automatically confirms all prompts, allowing unattended execution. This command contacts configured repositories, downloads updated package metadata, identifies outdated packages, and installs the latest versions. The process typically completes within 5-15 minutes depending on connection speed and the number of pending updates.

Monitor the output for any errors or warnings. A successful update concludes with messages indicating the number of upgraded packages and completion status. Reboot the system if kernel updates were applied to ensure all changes take effect properly.

Step 2: Install HAProxy on Fedora 42

Fedora 42 includes HAProxy in its default repositories, simplifying the installation process considerably. The DNF package manager handles dependency resolution automatically, ensuring all required libraries and supporting packages are installed together.

Install HAProxy using this command:

sudo dnf install haproxy -y

The package manager retrieves HAProxy and its dependencies from configured repositories. Installation typically requires 5-10 MB of disk space and completes within 1-2 minutes. Watch for confirmation messages indicating successful installation.

Verify the installation by checking the installed version:

haproxy -v

This command displays version information, build date, and compiled features. Current HAProxy versions support advanced capabilities including HTTP/2, Lua scripting, and comprehensive SSL/TLS protocols. Successful version output confirms proper installation.

Query additional package details:

rpm -qi haproxy

This reveals package information including version number, release date, architecture, installation size, and a brief description of HAProxy’s functionality.

Step 3: Understanding HAProxy Configuration File Structure

HAProxy configuration resides in /etc/haproxy/haproxy.cfg, a text-based file organized into distinct sections. Mastering this structure is fundamental to effective load balancer management.

The global section defines process-wide parameters affecting overall HAProxy operation. Settings include daemon mode, logging configuration, user and group permissions for security isolation, maximum connection limits, chroot directory for filesystem isolation, PID file location, and system resource tuning parameters. This section executes once at service startup.

The defaults section establishes baseline parameters inherited by all subsequent sections unless explicitly overridden. Common defaults include timeout values (client, server, connect, http-request, queue), logging options, retry behavior, HTTP mode selection, and error handling. These settings reduce configuration redundancy.

The frontend section defines client-facing interfaces where HAProxy accepts incoming connections. Frontends specify bind addresses and ports, apply access control lists (ACLs) for request filtering, implement routing logic, and select appropriate backends based on request attributes. Multiple frontends enable hosting different services on separate ports.

The backend section defines server pools and load balancing behavior. Backends specify load balancing algorithms, health check configurations, timeout overrides, server definitions with IP addresses and ports, and connection parameters. Each backend represents a logical group of servers serving similar content.

Understanding how sections interact clarifies HAProxy’s request flow: clients connect to frontends, ACL rules evaluate requests, selected backends receive traffic, and health checks maintain server pool integrity.

Step 4: Create a Backup of Default Configuration

Configuration backups represent essential safety measures before making modifications. A preserved original configuration enables quick recovery from misconfigurations that prevent service startup.

Create a timestamped backup:

sudo cp /etc/haproxy/haproxy.cfg /etc/haproxy/haproxy.cfg.backup.$(date +%F)

This command copies the configuration file, appending the current date to the backup filename. Multiple backups can coexist, documenting configuration evolution over time. Store backups in a dedicated directory for better organization:

sudo mkdir -p /etc/haproxy/backups
sudo cp /etc/haproxy/haproxy.cfg /etc/haproxy/backups/haproxy.cfg.$(date +%F_%H-%M-%S)

Restore from backup when needed:

sudo cp /etc/haproxy/haproxy.cfg.backup.2025-10-06 /etc/haproxy/haproxy.cfg

Production environments benefit from version control systems like Git, enabling detailed change tracking, diff comparisons, and collaborative configuration management.

Step 5: Configure Basic HAProxy Load Balancer

Creating a functional load balancer configuration requires understanding core directives and proper syntax. This example demonstrates HTTP load balancing across multiple web servers.

Open the configuration file with a text editor:

sudo nano /etc/haproxy/haproxy.cfg

Replace or append the following configuration after the defaults section:

frontend http_front
    bind *:80
    stats uri /haproxy?stats
    default_backend http_back

backend http_back
    balance roundrobin
    option httpchk GET /
    server web1 192.168.1.101:80 check
    server web2 192.168.1.102:80 check
    server web3 192.168.1.103:80 check

Breaking down this configuration: The frontend named http_front binds to all network interfaces on port 80, accepting HTTP connections. The stats uri directive enables statistics access at the specified path. The default_backend directive routes all requests to the http_back backend.

The backend section employs the roundrobin algorithm for sequential request distribution. The option httpchk directive performs HTTP health checks by requesting the root path from each server. Three web servers are defined with private IP addresses, each monitored via the check parameter.

Adjust IP addresses to match actual backend server addresses. Port numbers can differ if backend servers listen on non-standard ports. The check parameter enables automatic health monitoring, removing failed servers from rotation until they recover.

Save the configuration file and exit the editor. Proper indentation improves readability, though HAProxy doesn’t strictly require it. Use consistent spacing for maintainability.

Step 6: Configure HAProxy Load Balancing Algorithms

HAProxy supports multiple load balancing algorithms, each optimized for different scenarios. Selecting the appropriate algorithm significantly impacts performance and user experience.

Roundrobin distributes requests sequentially across available servers. Each server receives requests in turn, creating even distribution when servers have equal capacity. This algorithm supports dynamic weight adjustment, allowing administrators to direct more traffic to powerful servers. However, it limits configurations to 4095 servers maximum.

Configure roundrobin:

backend http_back
    balance roundrobin
    server web1 192.168.1.101:80 check weight 100
    server web2 192.168.1.102:80 check weight 50

Leastconn routes new connections to the server handling the fewest active connections. This algorithm excels with long-running sessions or varying request processing times. Servers with lighter loads receive proportionally more new connections, naturally balancing resource utilization.

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

Source performs hash-based routing using client IP addresses, ensuring requests from the same client consistently reach the same backend server. This provides session persistence without cookies or application-level session management. It’s ideal for applications requiring sticky sessions.

backend http_back
    balance source
    hash-type consistent
    server web1 192.168.1.101:80 check
    server web2 192.168.1.102:80 check

Static-rr implements static round-robin distribution without dynamic weight changes. This algorithm supports unlimited servers, unlike standard roundrobin, making it suitable for large server pools with stable configurations.

URI routes based on request URI patterns, directing similar requests to the same backend server. This optimizes caching efficiency by ensuring content-specific requests hit servers with warm caches.

First sends traffic to the first available server until it reaches capacity, then moves to the next server. This algorithm minimizes the number of active servers, potentially reducing resource consumption.

Step 7: Enable Health Checks for Backend Servers

Health monitoring prevents traffic routing to failed or degraded servers, maintaining service availability automatically. HAProxy offers flexible health check configurations adaptable to various application requirements.

Basic health checks activate with the check keyword:

server web1 192.168.1.101:80 check

Advanced health check parameters provide fine-tuned control:

backend http_back
    option httpchk GET /health
    http-check expect status 200
    server web1 192.168.1.101:80 check inter 3000 rise 2 fall 3
    server web2 192.168.1.102:80 check inter 3000 rise 2 fall 3

The inter parameter sets check intervals in milliseconds (3000 = 3 seconds). The rise parameter defines successful checks required before marking a server UP (2 consecutive successes). The fall parameter specifies failures needed to mark a server DOWN (3 consecutive failures).

Custom health check endpoints enable application-specific monitoring:

option httpchk GET /api/health HTTP/1.1\r\nHost:\ example.com

This configuration sends HTTP requests with proper headers to dedicated health endpoints. Applications can implement sophisticated health logic checking database connectivity, cache availability, or external service dependencies.

TCP health checks suit non-HTTP services:

backend mysql_back
    mode tcp
    server db1 192.168.1.201:3306 check

HAProxy automatically removes unhealthy servers from load balancer rotation and restores them once health checks pass again. This automatic failover maintains service continuity without manual intervention.

Step 8: Validate HAProxy Configuration Syntax

Configuration validation prevents service failures caused by syntax errors. HAProxy provides built-in validation before applying changes to production systems.

Run the validation command:

sudo haproxy -c -f /etc/haproxy/haproxy.cfg

The -c flag triggers check mode, parsing configuration without starting the service. The -f flag specifies the configuration file path. Successful validation produces:

Configuration file is valid

Invalid configurations display detailed error messages indicating the problematic line number and error description:

[ALERT] 287/124512 (12345) : parsing [/etc/haproxy/haproxy.cfg:45] : unknown keyword 'balanc' in 'backend' section

Common syntax errors include missing brackets, incorrect indentation (though not strictly required), invalid keywords or typos, undefined backend references in frontends, and duplicate server names within backends.

Always validate after configuration changes, especially before restarting production services. This simple step prevents unnecessary downtime.

Step 9: Start and Enable HAProxy Service

Fedora 42 uses systemd for service management, providing reliable process supervision and automatic restart capabilities.

Start the HAProxy service:

sudo systemctl start haproxy

This command initiates HAProxy with the current configuration. Check for error messages if startup fails, indicating configuration problems or port conflicts.

Enable automatic startup at boot:

sudo systemctl enable haproxy

This creates systemd symlinks ensuring HAProxy starts automatically after system reboots, maintaining service continuity.

Combine both operations:

sudo systemctl enable --now haproxy

The --now flag simultaneously enables and starts the service in one command. The systemd service file resides at /usr/lib/systemd/system/haproxy.service, defining service behavior and dependencies.

Step 10: Verify HAProxy Installation and Status

Confirming proper operation ensures the load balancer functions as expected before directing production traffic.

Check service status:

sudo systemctl status haproxy

Successful output displays:

● haproxy.service - HAProxy Load Balancer
     Loaded: loaded (/usr/lib/systemd/system/haproxy.service; enabled; vendor preset: disabled)
     Active: active (running) since Mon 2025-10-06 12:30:15 WIB; 2min ago

The status indicates whether the service is active (running) or inactive (stopped), enabled (starts at boot) or disabled, and displays recent log entries. Green “active (running)” confirms successful operation.

Verify listening ports:

sudo ss -tuln | grep haproxy

Or using netstat:

sudo netstat -tlnp | grep haproxy

Output shows HAProxy listening on configured ports (80, 443, 8404, etc.). Absence of expected ports indicates configuration issues or startup failures.

Test load balancer functionality:

curl http://localhost

Or from a remote system:

curl http://server-ip-address

Successful responses indicate proper frontend and backend connectivity. Multiple curl requests should demonstrate load distribution across backend servers when checking backend logs.

Configuring HAProxy Statistics Page

HAProxy includes a built-in statistics dashboard providing real-time monitoring of load balancer performance, connection metrics, and backend server health.

Add a stats section to the configuration:

listen stats
    bind *:8404
    stats enable
    stats uri /stats
    stats refresh 30s
    stats auth admin:SecurePassword123
    stats admin if TRUE

This configuration creates a dedicated listener on port 8404. The stats enable directive activates statistics functionality. The stats uri specifies the access path. The stats refresh automatically updates metrics every 30 seconds. The stats auth implements basic authentication with username and password. The stats admin enables administrative functions like disabling servers through the web interface.

Enhanced security configuration restricts access by IP address:

listen stats
    bind 127.0.0.1:8404
    stats enable
    stats uri /stats
    stats refresh 30s
    stats auth admin:SecurePassword123
    stats hide-version
    stats realm HAProxy\ Statistics

Binding to localhost limits access to the server itself, requiring SSH tunnel or reverse proxy for remote access. The stats hide-version directive conceals HAProxy version information, reducing information disclosure.

Access the statistics page by navigating to http://server-ip:8404/stats in a web browser. Authenticate with configured credentials. The dashboard displays comprehensive metrics: active sessions, queued requests, bytes transferred, error counts, server status, health check results, and uptime statistics.

Configuring SSL/TLS Termination

SSL/TLS termination at the load balancer level offloads encryption overhead from backend servers, improving overall performance and centralizing certificate management.

Prepare SSL certificates by combining certificate and private key into a single PEM file:

cat server.crt server.key > /etc/haproxy/certs/server.pem
sudo chmod 600 /etc/haproxy/certs/server.pem

Strict file permissions protect private keys from unauthorized access. Create the certs directory if it doesn’t exist.

Configure HTTPS frontend:

frontend https_front
    bind *:443 ssl crt /etc/haproxy/certs/server.pem
    http-request set-header X-Forwarded-Proto https
    default_backend http_back

The ssl keyword enables SSL processing. The crt parameter specifies certificate location. The X-Forwarded-Proto header informs backend servers about original connection protocol.

Implement HTTP to HTTPS redirect:

frontend http_front
    bind *:80
    redirect scheme https code 301 if !{ ssl_fc }

This configuration permanently redirects HTTP requests to HTTPS, enforcing encrypted connections. The ssl_fc check prevents redirect loops.

Configure strong cipher suites for security:

frontend https_front
    bind *:443 ssl crt /etc/haproxy/certs/server.pem ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384 no-sslv3 no-tlsv10 no-tlsv11

Modern cipher suites disable weak protocols and prefer forward-secrecy algorithms, meeting PCI-DSS and security compliance requirements.

Configuring Firewall Rules for HAProxy

Fedora 42 uses firewalld by default, requiring explicit port allowances for HAProxy operation.

Open HTTP port:

sudo firewall-cmd --permanent --add-service=http

Open HTTPS port:

sudo firewall-cmd --permanent --add-service=https

Open custom statistics port:

sudo firewall-cmd --permanent --add-port=8404/tcp

Reload firewall to apply changes:

sudo firewall-cmd --reload

Verify active rules:

sudo firewall-cmd --list-all

The --permanent flag ensures rules persist across reboots. Without this flag, rules apply only until next firewall reload.

Restrict statistics port access to specific IP addresses:

sudo firewall-cmd --permanent --add-rich-rule='rule family="ipv4" source address="192.168.1.0/24" port port="8404" protocol="tcp" accept'

This limits statistics access to the specified network range, enhancing security. Remove unrestricted port rules after adding rich rules.

Systems using iptables directly can implement equivalent rules:

sudo iptables -A INPUT -p tcp --dport 80 -j ACCEPT
sudo iptables -A INPUT -p tcp --dport 443 -j ACCEPT
sudo iptables-save | sudo tee /etc/sysconfig/iptables

Common HAProxy Errors and Troubleshooting

Understanding common errors accelerates problem resolution and minimizes downtime.

Configuration syntax errors manifest during validation or startup. Check system logs:

sudo journalctl -u haproxy -n 50

ALERT messages identify specific problems. Common issues include typos in keywords, missing sections, invalid parameters, and incorrect syntax.

Service fails to start often indicates port conflicts. Verify nothing else uses HAProxy ports:

sudo ss -tuln | grep ':80'

Check file permissions on configuration and certificate files:

ls -la /etc/haproxy/haproxy.cfg

HAProxy requires read access to configuration and certificates. SELinux contexts may block access on systems with enforcing mode:

sudo setsebool -P haproxy_connect_any 1

Backend servers marked DOWN despite functioning properly suggests health check misconfiguration. Test backend connectivity manually:

curl -I http://192.168.1.101/

Verify backend servers respond on configured ports. Adjust health check intervals and thresholds if servers respond slowly. Check firewall rules on backend servers allowing HAProxy connections.

Connection timeouts occur when configured timeout values are too aggressive. Increase timeout parameters in defaults or backend sections:

defaults
    timeout connect 10s
    timeout client 60s
    timeout server 60s

Monitor backend server performance, as timeouts often indicate overwhelmed or failing servers rather than HAProxy misconfiguration.

High CPU usage on HAProxy suggests insufficient tuning for traffic volume. Increase process limits:

global
    maxconn 10000
    nbproc 2

Review buffer sizes and connection limits. Consider hardware upgrades or horizontal scaling with multiple HAProxy instances for very high traffic.

504 Gateway Timeout responses indicate backend servers fail to respond within configured timeouts. Check backend server performance and adjust server timeout values accordingly. Investigate database query times, external API calls, or resource exhaustion on backend servers.

Testing HAProxy Load Balancing

Thorough testing validates configuration before production deployment.

Test basic connectivity:

curl -v http://load-balancer-ip/

The verbose flag displays connection details, response headers, and backend server information if configured in responses.

Test load distribution by making multiple requests:

for i in {1..10}; do curl http://load-balancer-ip/; done

Check backend server access logs to verify requests distribute across all servers. With roundrobin, each server should receive approximately equal requests.

Test session persistence with source algorithm:

curl --local-port 12345 http://load-balancer-ip/
curl --local-port 12345 http://load-balancer-ip/

Both requests should reach the same backend server when using source-based balancing.

Perform load testing with Apache Bench:

ab -n 1000 -c 10 http://load-balancer-ip/

This sends 1000 requests with 10 concurrent connections. Monitor HAProxy statistics page during testing to observe real-time metrics. Successful load balancing shows requests distributed across healthy backends.

Test failover by stopping one backend server:

# On backend server
sudo systemctl stop nginx

HAProxy should detect the failure within configured health check interval and stop routing traffic to the failed server. Remaining backends continue serving requests uninterrupted.

HAProxy Security Best Practices

Comprehensive security hardening protects load balancers from attacks and unauthorized access.

Restrict statistics page access using authentication and IP whitelisting:

listen stats
    bind 127.0.0.1:8404
    stats auth admin:ComplexPassword123!
    acl allowed_ips src 192.168.1.0/24
    http-request deny unless allowed_ips

Never expose statistics publicly without strong authentication. Use complex passwords and consider client certificate authentication for production environments.

Implement rate limiting to mitigate DDoS attacks:

frontend http_front
    stick-table type ip size 100k expire 30s store conn_rate(3s)
    http-request track-sc0 src
    http-request deny deny_status 429 if { sc_conn_rate(0) gt 20 }

This configuration limits clients to 20 connections per 3 seconds, blocking excessive requests with HTTP 429 status.

Block malicious requests using ACLs:

frontend http_front
    acl bad_user_agent hdr_sub(User-Agent) -i curl wget scanner bot
    acl missing_user_agent hdr_cnt(User-Agent) eq 0
    http-request deny if bad_user_agent or missing_user_agent

Filter requests lacking User-Agent headers or containing suspicious patterns. Adjust patterns based on legitimate traffic requirements.

Enable strong SSL/TLS configuration:

ssl-default-bind-ciphers ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384
ssl-default-bind-options ssl-min-ver TLSv1.2 no-tls-tickets

Disable weak ciphers and outdated protocol versions. Enable Perfect Forward Secrecy (PFS) ciphers. Regular SSL Labs testing validates configuration strength.

Run with limited privileges:

global
    user haproxy
    group haproxy
    chroot /var/lib/haproxy

Never run HAProxy as root in production. User and group isolation limits damage from potential vulnerabilities.

Hide version information:

global
    stats hide-version

Concealing version details reduces targeted exploit attempts. Consider custom error pages avoiding software identification.

Regular security updates patch known vulnerabilities. Subscribe to HAProxy security mailing lists and test updates in staging environments before production deployment.

Performance Optimization Tips

Tuning HAProxy maximizes throughput and minimizes latency for demanding workloads.

Adjust maximum connections based on expected traffic and hardware capacity:

global
    maxconn 20000
    
frontend http_front
    maxconn 10000

Global maxconn sets process-wide limits while frontend maxconn restricts individual listeners. Monitor connection metrics to determine appropriate values.

Enable HTTP keep-alive for connection reuse:

defaults
    option http-keep-alive
    option forwardfor

Persistent connections reduce TCP handshake overhead, improving performance for clients making multiple requests.

Configure buffer sizes optimizing memory usage:

global
    tune.bufsize 32768
    tune.maxrewrite 8192

Larger buffers accommodate bigger requests and responses but consume more memory. Balance buffer sizes against available RAM.

Implement compression reducing bandwidth:

frontend http_front
    compression algo gzip
    compression type text/html text/plain text/css application/javascript

Compressing responses saves bandwidth and accelerates page loads for clients. Avoid compressing already-compressed formats like images or videos.

Use connection queuing:

backend http_back
    option queue
    maxconn 500

Queuing prevents backend overload during traffic spikes, gracefully handling temporary capacity exceedance.

Monitor and analyze statistics identifying bottlenecks. Track queue times, connection rates, error percentages, and backend response times. Use insights for targeted optimization.

Monitoring HAProxy Performance

Ongoing monitoring maintains operational awareness and enables proactive problem resolution.

The built-in statistics page provides real-time dashboards accessible via web browser. Monitor key metrics including connection rates (connections per second), error rates (4xx, 5xx responses), backend server health status, response times and latency, queue depths, and bytes transferred.

Configure centralized logging forwarding HAProxy logs to syslog:

global
    log 127.0.0.1 local0
    log 127.0.0.1 local1 notice

Configure rsyslog to handle HAProxy logs:

sudo nano /etc/rsyslog.d/haproxy.conf

Add:

local0.* /var/log/haproxy.log
local1.* /var/log/haproxy-admin.log

Restart rsyslog:

sudo systemctl restart rsyslog

Centralized logging enables long-term analysis, security auditing, and compliance reporting.

External monitoring platforms like Prometheus and Grafana provide sophisticated visualization and alerting. HAProxy exports metrics via the stats socket:

global
    stats socket /var/run/haproxy.sock mode 600 level admin
    stats timeout 2m

Use Prometheus HAProxy exporter scraping metrics for time-series analysis. Create Grafana dashboards visualizing trends and anomalies.

Set up alerts for critical conditions: backend servers marked DOWN, error rate exceeding thresholds, response time degradation, connection queue growth, and SSL certificate expiration approaching. Proactive alerting prevents issues from becoming outages.

Congratulations! You have successfully installed HAProxy. Thanks for using this tutorial for installing HAProxy high-performance open-source load balancer on your Fedora 42 Linux system. For additional or useful information, we recommend you check the official HAProxy website.