le we will call "gulag" which uses no more than 1 megabyte of ram to store session information keyed by remote ip address. This directive is used in conjunction with limit_conn gulag 5. The ngx_http_limit_zone_module only restricts the amount of connections from a single ip address which are currently being processed by the Nginx daemon. An error 503 will be returned to the client if request processing is being blocked at the socket level and new requests from same ip starts. limit_zone will _NOT_ help if your workload is CPU or disk bound. With several workers enabled an
https://calomel.org/nginx.html
Vote 0
passer la vraie ip qui accède à apache derrière nginx
http://recurser.com/articles/2009/08/...assing-ips-to-apache-with-nginx-proxy
Vote 0
HAProxy is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications. It is particularly suited for web sites crawling under very high loads while needing persistence or Layer7 processing. Supporting tens of thousands of connections is clearly realistic with todays hardware. Its mode of operation makes its integration into existing architectures very easy and riskless, while still offering the possibility not to expose fragile web servers to the Net, such as below :
http://haproxy.1wt.eu/#docs
Vote 0
