Does Apache cache DNS?

Does Apache need DNS?

In order for Apache to function properly, it absolutely needs to have two pieces of information about each virtual host: the ServerName and at least one IP address that the server will bind and respond to. The above example does not include the IP address, so Apache must use DNS to find the address of www.

How does Apache Cache work?

The most basic form of caching present in Apache is the file-handle caching provided by mod_file_cache . Rather than caching file-contents, this cache maintains a table of open file descriptors. Files to be cached in this manner are specified in the configuration file using the CacheFile directive.

Where does Apache store cache?

Apache comes with three modules for caching content, one enables it and the remaining two determine where the cache store exists – on disk or in memory. Determining which module to use for the cache store depends on your available hardware resources and performance requirements.

How do I point my domain to Apache?

With the domains working properly, we need to configure Apache to route the domain names to our site directory.

  1. Locate and navigate to your Apache configuration files directory. …
  2. Locate your vhost configuration. …
  3. Create or open the vhost configuration. …
  4. Add a new vhost record. …
  5. Save the file with your changes.
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What is Apache cache?

The Apache HTTP server offers a range of caching features that are designed to improve the performance of the server in various ways. Three-state RFC2616 HTTP caching. mod_cache and its provider modules mod_cache_disk provide intelligent, HTTP-aware caching.

How do I know if Apache cache is working?

A simple test to verify a working cache: Request a URL, e.g. curl “http://mydomain/my/page?test_param” Check that the HTTP status code is either 200, 203, 300, 301 or 410 (only those are cached, see

How do I configure Apache cache-control?

Apache. If you want to enable Cache-Control for all files, add Header set line outside the filesMatch block. As you can see, we set the Cache-Control header’s max-age to 3600 seconds and to public for the listed files.

Does Apache cache images?

Although the image files are static content and are cached by the browser, every time an user opens a page that links to them, they are conditionally requested, to which they send “304 Not Modified”.

What is better Apache or nginx?

NGINX performs 2.5 times faster than Apache according to a benchmark test performed by running up to 1,000 simultaneous connections. Another benchmark running with 512 simultaneous connections, showed that NGINX is about twice as fast and consumed less memory.

How do I refresh the Apache cache?

Open the Apache caching PHP utility by typing “htcacheclean -r” into the terminal window. When this is completed, press “Enter” on the keyboard to formally launch the cache cleaning. During this process, the server utility thoroughly cleans and deletes any superfluous subdirectories on the server.

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