HAProxy vs Pound: What are the differences?

# Introduction

1. **High Availability:** HAProxy supports active-passive and active-active high availability setups whereas Pound does not have built-in high availability support.
   
2. **SSL/TLS Termination:** HAProxy provides SSL termination with advanced features like SSL offloading and handling multiple SSL certificates on a single IP address, while Pound primarily focuses on simpler SSL termination functionalities.
   
3. **Performance and Scalability:** HAProxy is known for its high performance, low latency, and scalability with support for millions of concurrent connections, whereas Pound is more suitable for smaller deployments or simpler use cases.
   
4. **Load Balancing Algorithms:** HAProxy offers more load balancing algorithms such as round-robin, least connections, source IP hash, etc., providing more flexibility and control over traffic distribution compared to Pound.
   
5. **Logging and Monitoring:** HAProxy provides extensive logging capabilities and integrates well with monitoring tools like Prometheus and Grafana, whereas Pound has limited logging options and does not offer as comprehensive monitoring features.
   
6. **Customization and Extensibility:** HAProxy offers a wide range of configuration options and supports Lua scripting for advanced customization, while Pound has fewer customization options available.

In Summary, HAProxy is preferred for enterprise-grade high availability, SSL termination, performance, load balancing flexibility, logging capabilities, and customization options compared to Pound which is more suited for simpler deployments and use cases.