July 2016
Beginner
320 pages
6h 32m
English
So far, we've focused on communicating with upstream servers over HTTP. For this, we use the proxy_pass directive. As hinted earlier in this chapter, in the Keepalive connections section, NGINX can proxy requests to a number of different kinds of upstream server. Each has its corresponding *_pass directive.
The memcached NGINX module (enabled by default) is responsible for communicating with a memcached daemon. As such, there is no direct communication between the client and the memcached daemon; that is, NGINX does not act as a reverse proxy in this sense. The memcached module enables NGINX to speak the memcached protocol so that a key lookup can be done before a request is passed to an application ...
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