Howtos / Articles

Check What Modules Were Compiled into Nginx

By using a pre-compiled version of Nginx from your distributions repositories, you generally don’t know what modules are compiled into it. Common modules that you might need, but may not be compiled in by default, are IPv6, RealIP, SSL, and GZip compression support. To find out what configuration parameters were used to compile Nginx (and subsequently, which modules are compiled into it), simply run the following command: $ nginx -V   Sample Output: $ nginx -V nginx version: nginx/0.7.65 TLS…

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Configure Varnish to Allow Purging the Cache

This howto guide will show you how to configure Varnish to allow you to purge specific items from the cache.…

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Purge Varnish Cache Using Curl

This howto guide will show you how to purge the varnish cache for a specific URL using the curl command line tool.…

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Increase PHP Upload Limit on Ubuntu 12.04

A default installation of PHP and Apache on a Ubuntu 12.04 will set a maximum upload limit of 2MB. Quite often you will want to increase this to a larger size. How high you set this limit will depend on your requirements. This howto guide will step you through the process to increase the PHP upload limit.…

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Varnish with Multiple Backends

Varnish has the ability to reverse proxy to multiple backend servers if needed. This howto guide outlines the configuration settings needed to redirect requests to different backends. In our example, we have a web application backend (referenced to as “webapp”), and also a separate backend that just contains static content such as images, javascript, style sheets, etc. The static backend is just referenced as “static”. Both are running on port 8080.…

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