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| − | [[wikipedia:Nginx]] [[web server]] that was written in 2004 as an alternative to popular [[Apache]] [[web server]].
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| − | * Official documentation: https://nginx.org/en/docs/
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| − | * Configuration Files:
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| − | :<code>/etc/nginx/[[nginx.conf]]</code>
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| − | :<code>/etc/nginx/conf.d/[[default.conf]]</code>
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| − | :<code>/etc/nginx/sites-enabled</code>
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| − | [[Nginx logs]] (See also [[Nginx change log]])
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| − | * Error log file: <code>/var/log/nginx/[[error.log (Nginx)|error.log]]</code>
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| − | * Access log file: <code>/var/log/nginx/access.log</code>
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| − | * [[Logrotate]]: <code>/etc/logrotate.d/nginx</code>
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| − | * <code>[[journalctl]] -u nginx</code>
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| − | ::<code>[[journalctl -u nginx]] | grep [[emerg]]</code>
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| − | == Installation ==
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| − | [[Ubuntu]]
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| − | apt install [[nginx-light]]
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| − | [[systemctl status nginx]]
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| − | [[/var]]/www/html/
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| − | [[apt install]] nginx
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| − | [[Docker Nginx]] https://hub.docker.com/_/nginx
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| − | == [[Nginx Sample Configurations]] ==
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| − | == Features ==
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| − | Nginx can be deployed to serve dynamic [[HTTP]] content on the network using [[FastCGI]], [[SCGI]] handlers for [[scripting language|scripts]], [[Web Server Gateway Interface|WSGI]] application servers or [[Phusion Passenger]] modules, and it can serve as a software [[load balancer]].<ref name="Kleinman" />
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| − | Nginx uses an [[asynchronous system|asynchronous]] [[event (computing)|event-driven]] approach, rather than threads, to handle requests.<ref name="Welcome" /> Nginx's modular [[event-driven architecture]] can provide more predictable performance under high loads.<ref name="aosabook" /><ref name="Configuration" />
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| − | Nginx default configuration file is <code>nginx.conf</code>.<ref name="Beginner" />
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| − | === HTTP proxy and Web server features ===
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| − | * Ability to handle [[c10k problem|more than 10,000 simultaneous connections]] with a low memory footprint (~2.5 MB per 10k inactive [[HTTP persistent connection|HTTP keep-alive connections]])
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| − | * Handling of static files, index files and auto-indexing
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| − | * [[Reverse proxy]] with caching<ref>https://docs.nginx.com/nginx/admin-guide/web-server/reverse-proxy/</ref> (<code>[[proxy_pass]]</code> [[directive]]) (Do not support [[proxy]] <ref>https://serverfault.com/a/298401</ref>)
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| − | * [[Load balancer|Load balancing]] with in-band health checks<ref name="Load balancing" /> (<code>[[upstream]]</code> directive)
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| − | * [[TLS]]/[[SSL]] with [[Server Name Indication|SNI]] and [[OCSP stapling]] support, via [[OpenSSL]]
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| − | * [[FastCGI]], [[SCGI]], [[uWSGI]] support with caching
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| − | * [[gRPC]] support since March 2018, version 1.13.10.<ref>https://www.nginx.com/blog/nginx-1-13-10-grpc/</ref>
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| − | * Name- and IP address-based virtual servers
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| − | * [[IPv6]]-compatible
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| − | * [[WebSocket]]s since 1.3.13,<ref>http://nginx.org/en/docs/http/websocket.html</ref><ref>https://nginx.org/en/docs/http/websocket.html</ref> including acting as a reverse proxy and do load balancing of WebSocket applications.<ref>https://www.nginx.com/blog/websocket-nginx/</ref>
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| − | * [[HTTP/1.1 Upgrade header|HTTP/1.1 Upgrade (101 Switching Protocols)]],<ref name="101 Switching Protocols" /> [[HTTP/2]] protocol support
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| − | * [[rewrite engine|URL rewriting]] and [[URL redirection|redirection]]<ref name="mdoc-intro" /><ref name="mdoc" />
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| − | === Mail proxy features ===
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| − | * [[Transport Layer Security|TLS/SSL]] support
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| − | * [[STARTTLS]] support
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| − | * [[SMTP]],<ref>https://docs.nginx.com/nginx/admin-guide/mail-proxy/mail-proxy/</ref> [[POP3]], and [[IMAP]] [[Proxy server|proxy]]
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| − | * Requires Authentication using an external HTTP server or by an authentication script<ref name="Authentication" /><ref>https://docs.nginx.com/nginx/admin-guide/mail-proxy/mail-proxy/#mail_auth</ref>
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| − | Other features include upgrading executable and configuration without client connections loss,<ref name="Controlling nginx" /> and a module-based architecture with both core<ref name="documentation" /> and third-party module support.<ref name="3rdPartyModules" />
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| − | The paid [[Nginx]] Plus product includes additional features such as advanced [[load balancing]] and access to an expanded suite of metrics for performance monitoring.<ref name="Plus metrics" /><ref name="Plus load balancing" />
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| − | == Linux Nginx Operation on [[systemd]] distributions ==
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| − | * Verify/Test Configuration: <code>[[nginx -t]]</code>
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| − | * Status: <code>[[systemctl]] status nginx</code>
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| − | * Start: <code>systemctl start nginx</code>
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| − | * Stop: <code>systemctl stop nginx</code>
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| − | * Restart: <code>systemctl restart nginx</code> (See also: <code>[[nginx -t]]</code>)
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| − | == Activities ==
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| − | * [[Track Application Response time in Nginx]]
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| − | * Enable status page in [[Nginx]] to get information about active connections and other parameters: https://easyengine.io/tutorials/nginx/status-page/ and test it: <code>curl http://127.0.0.1/nginx_status</code>
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| − | * Read [[Nginx change log|Nginx Change log]]
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| − | * [[Configure HTTP to HTTPs redirection with Nginx]]
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| − | * Review [[SSL]] nginx configuration
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| − | Medium
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| − | * Use <code>[[prometheus]]-[[nginx]]-exporter</code> to collect Nginx metrics
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| − | == Related terms ==
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| − | * [[NGINX Amplify]] [[SaaS]]
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| − | == See also ==
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| − | * {{certbot}}
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| − | * {{nginx}}
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| − | * {{http}}
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| − | * {{proxy}}
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| − | * [[Nagios]]: <code>[[check_http]]</code>
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| − | [[Category:Web]]
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| − | [[Category:Nginx]]
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| − | {{CC license}}
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| − | Source: https://en.wikipedia.org/wiki/Nginx
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