Nginx（engine 'X'）
Features:
Reverse Proxy (proxy server the sites I visited, a reverse proxy.)
(What is a forward proxy? Using VPN over the wall, the local access network, the unit is VPN agent for forward proxy.)
Action: information write multiple location, write a different server in the location of
Load Balancing
: In the upstream in charge of writing a balanced way.
Polling a first (default)
Each request individually assigned to a different time order back-end server, if the back-end server down. Off automatically removed.
The second weight
weight represents the weight defaults to 1, higher weights are assigned clients more
The third ip_hash
Hash result for each request assigned by the ip access, so that each guest access to a fixed back-end server
The fourth fair (third party)
Preferentially allocated according to the response time of the backend server allocation request, the response time is short
Static and dynamic separation (static data on the agent: JS, CSS, images; dynamic data put on the server: dynamic interface, real-time computing;)
: Add a static file path in the location of the server
And Apache difference:
Apache: a request for a thread -> not high concurrency
Nginx module architecture low coupling efficiency is high
performance:
C1M = one million
How to practice in engineering:
Time stamping on the page; add floating; spam filtering request;