Introduction to reverse proxying
the proxy module
legacy servers with cookies
the upstream module
keepalive connections
load-balancing algorithms
Types of upstream servers
single upstream server
multiple upstream servers
non-HTTP upstream servers
memcached upstream servers
FastCGI upstream servers
SCGI upstream servers
uWSGI upstream servers
Converting an "if"-fy configuration to a more modern interpretation
Using error documents to handle upstream problems
Determing the client's real IP address