As a result, the request is proxied. The file is specified in the form of the URI, which is processed using the root or alias directives set in the context of the current location or virtual server. The last parameter can also be a status code directly preceded by the equals sign or the name of a location. In the next example, if neither the original URI nor the URI with the appended trailing slash resolve into an existing file or directory, the request is redirected to the named location which passes it to a proxied server.
Loading speed is a crucial factor of serving any content. Making minor optimizations to your NGINX configuration may boost the productivity and help reach optimal performance.
By default, NGINX handles file transmission itself and copies the file into the buffer before sending it. Enabling the sendfile directive eliminates the step of copying the data into the buffer and enables direct copying data from one file descriptor to another. The algorithm consolidates a number of small packets into a larger one and sends the packet with a ms delay. Nowadays, when serving large static files, the data can be sent immediately regardless of the packet size.
The delay also affects online applications ssh, online games, online trading, and so on. Unfortunately, I have tried this as well as expires -1 and the behavior is still the same. Concerning the browser, I have thought of this possibilities: I was first trying with Chrome, and after modifying a file opened it for the first time in Firefox: I still got the first version of the file. On Windows, "expires off" still doesn't disable caching of html files.
Super frustrating when I update a file in my IDE, but! Show 1 more comment. Another workaround includes dropping the Linux pagecache, e. Community Bot 1. ColtonCat ColtonCat 3 3 silver badges 7 7 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Stack Gives Back Safety in numbers: crowdsourcing data on nefarious IP addresses. Featured on Meta. New post summary designs on greatest hits now, everywhere else eventually.
Linked Related 6. Hot Network Questions. Javascript execution support is disabled in your browser. It is recommended that you enable it for better website performance. The following sample configuration is a good go, just replace www.
NGINX uses a persistent disk-based cache located somewhere in the local file system. So start by creating the local disk directory for storing cached content. Next, set the appropriate ownership on the cache directory. Without it, the webserver has to open a new process that has to be controlled, process a request, and get closed for every client request for a service.
NGINX uses them in calculating the key identifier of a request. Importantly, to send a cached response to the client, the request must have the same key as a cached response.
If only caching time is specified as in our case, only , , and responses are cached. But you can also specify the responses explicitly or use any for any response code :.
This sample configuration means that when NGINX receives an error, timeout, and any of the specified errors from the upstream server and has a stale version of the requested file in the cached content, it delivers the stale file. When set to on, it instructs NGINX to serve stale content when clients request for a file that is expired or is in the process of being updated from the upstream server.
Next, test if the cache is functioning properly, try to access your web application or site from using the following curl command the first time should indicate a MISS , but subsequent requests should indicate a HIT as shown in the screenshot.
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