Adding SSL suport in Nginx

Answer:

Assume you have got your certificate file (server.crt) from a CA, and you also have a private key (server.key).

1. Compile Nginx to support SSL

# ./configure --with-http_ssl_module

2. Add the following line in nginx.conf

server {
    server_name YOUR_DOMAINNAME_HERE;
    listen 443;
    ssl on;
    ssl_certificate /usr/local/nginx/conf/server.crt;
    ssl_certificate_key /usr/local/nginx/conf/server.key;
}

3. Restart Nginx

Reference: http://wiki.nginx.org/NginxHttpSslModule

How to define variable in nginx

Answer:

nginx provided a very simple way to define custom variable, which can provide a very flexible way to control your web server.

E.g.

set $foo bar; 

if ($foo ~ bar) {
    # do something  
}