What are the advantages of nginx?

Advantages of Nginx:

1. As a web server, Nginx handles static files and index files, and the efficiency of automatic indexing is very high.

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

3. As a load balancing server, Nginx can not only directly support Rails and PHP internally, but also support HTTP proxy servers for external services. It also supports simple fault tolerance and utilization algorithms for load balancing.

4. In terms of performance, Nginx is specially developed for performance optimization, and it pays great attention to efficiency in implementation. It uses the kernel Poll model, which can support more concurrent connections, can support responses to a maximum of 50,000 concurrent connections, and only takes up very low memory resources.

5. In terms of stability, Nginx adopts phased resource allocation technology, which makes the CPU and memory usage very low. Nginx officials stated that Nginx maintains 10,000 inactive connections, and these connections only occupy 2.5MB of memory. Therefore, attacks like DOS have basically no effect on Nginx.

6. In terms of high availability, Nginx supports hot deployment and the startup speed is very fast. Therefore, the software version or configuration can be upgraded without interrupting the service, and there is no need to restart even if it runs for several months. It can run almost 24/7 without interruption.

Summary:

Nginx has high stability; supports hot deployment; the code quality is very high, the code is standardized, the techniques are mature, and the module expansion is easy; it adopts some os provided The latest features such as support for sendfile (Linux2.2), accept-filter (FreeBSD4.1), TCP_DEFER_ACCEPT (Linux 2.4), thus greatly improving performance.

Recommended tutorial: nginx tutorial

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