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Apache and Nginx compare features

Nginx, like Apache, is HTTP server software. It adopts modular structure design in function implementation, supports common language interfaces, such as PHP, Perl, Python, etc., and also supports forward and reverse proxy, virtual host, URL rewriting, compressed transmission, SSL encrypted transmission, etc.

In terms of functional implementation, all Apache modules support dynamic and static compilation, while Nginx modules are statically compiled.

FastCGI support, Apache support for Fcgi is poor, and Nginx support for Fcgi is very good;

Nginx supports epoll in connection processing, while Apache does not;

In terms of space usage, the Nginx installation package is only a few hundred K, and Apache is definitely a behemoth compared to Nginx.

Advantages of Nginx over Apache

Lightweight, same web services, less memory and resources than Apache

Static processing, Nginx static processing performance is more than 3 times higher than Apache

Anti-concurrency, nginx processing requests are asynchronous non-blocking, while apache is blocking, and nginx can maintain low resource consumption and high performance under high concurrency. In Apache+PHP (prefork) mode, if PHP processing is slow or the front-end pressure is very high, it is easy to see the number of Apache processes soaring, resulting in denial of service.

Highly modular design, relatively simple to write modules

Active community, various high-performance modules produced quickly ah

Apache has advantages over nginx

Rewrite is stronger than nginx rewrite.

There are so many modules that you can find everything you think of.

Fewer bugs, nginx has relatively more bugs

ultra-stable

Apache PHP support is relatively simple, Nginx needs to cooperate with other backends

Choose Nginx advantage

As a Web server: Nginx handles static files, index files, and automatic indexing is very efficient.

As a proxy server, Nginx can achieve cache-free reverse proxy acceleration and improve website speed.

As a Load Balancer server, Nginx can support Rails and PHP directly internally, and can also support HTTP proxy servers for external services. It also supports simple fault tolerance and Load Balancer by using algorithms.

In terms of performance, Nginx is specifically developed for performance optimization and is very efficient in implementation. It uses the kernel Poll model (epoll and kqueue ), which can support more concurrent connections, up to 50,000 concurrent connections, and only takes up very low memory resources.

In terms of stability, Nginx adopts a phased resource allocation technique that makes CPU and memory usage very low. Nginx maintains 10,000 inactive connections that only consume 2.5MB of memory, so attacks like DOS are basically useless against Nginx.

In terms of high availability, Nginx supports hot deployment and starts very quickly, so it can upgrade software versions or configurations without interruption of service, even if it runs for months without restarting, and can run almost 7×24 hours without interruption.

Use both Nginx and Apache

Due to the respective advantages of Nginx and Apache, many people now choose to let both coexist in the server. On the server side, Nginx comes first and Apache comes second. Nginx does Load Balancer and reverse proxy, and handles static files, and dynamic requests (such as PHP applications) are handed over to Apache to handle.

summary

The above is a detailed explanation of the advantages and disadvantages of Apache and Nginx introduced by Xiaobian. I hope it will help you. If you have any questions, please leave a message to me. Xiaobian will reply to you in time. Thank you very much for your support!

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