nginx 强制跳转https

一、Nginx安装（略）
安装的时候需要注意加上 --with-http_ssl_module，因为http_ssl_module不属于Nginx的基本模块。
Nginx安装方法：

# ./configure --user=www --group=www --prefix=/usr/local/nginx --with-http_stub_status_module --with-http_ssl_module
# make && make install

二、生成证书(略)
可以使用openssl生成证书：
可参考：http://www.cnblogs.com/kevingrace/p/5865501.html
比如生成如下两个证书文件（假设存放路径为/usr/local/nginx/cert/）：
wangshibo.crt
wangshibo.key

三、修改Nginx配置
server {
          listen 443;
          server_name www.wangshibo.com;
          root /var/www/vhosts/www.wangshibo.com/httpdocs/main/;

          ssl on;
          ssl_certificate /usr/local/nginx/cert/wangshibo.crt;
          ssl_certificate_key /usr/local/nginx/cert/wangshibo.key;
          ssl_session_timeout 5m;
          ssl_protocols SSLv2 SSLv3 TLSv1;
          ssl_ciphers HIGH:!aNULL:!MD5;                                            //或者是ssl_ciphers ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;
          ssl_prefer_server_ciphers on;

          access_log /var/www/vhosts/www.wangshibo.com/logs/clickstream_ssl.log main;
          error_log /var/www/vhosts/www.wangshibo.com/logs/clickstream_error_ssl.log;

         if ($remote_addr !~ ^(124.165.97.144|133.110.186.128|133.110.186.88)) {           //对访问的来源ip做白名单限制
                rewrite ^.*$ /maintence.php last;
         }

         location ~ \.php$ {
              fastcgi_pass 127.0.0.1:9000;
              fastcgi_read_timeout 300;
              fastcgi_index index.php;
              fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;
             #include fastcgi_params;
             include fastcgi.conf;
         }
}

---------------------------------http访问强制跳转到https---------------------------------
网站添加了https证书后，当http方式访问网站时就会报404错误，所以需要做http到https的强制跳转设置.

---------------一、采用nginx的rewrite方法---------------------

1) 下面是将所有的http请求通过rewrite重写到https上。
    例如将所有的dev.wangshibo.com域名的http访问强制跳转到https。
    下面配置均可以实现：

配置1：
server {
    listen 80;
    server_name dev.wangshibo.com;
    index index.html index.php index.htm;

    access_log   /usr/local/nginx/logs/8080-access .log main;
    error_log   /usr/local/nginx/logs/8080-error .log;

    rewrite ^(.*)$  https: // $host$1 permanent;         // 这是ngixn早前的写法，现在还可以使用。

    location ~ / {
    root  /var/www/html/8080 ;
    index index.html index.php index.htm;
    }
    }

-------------------------------------------------------
上面的跳转配置rewrite ^(.*)$  https: // $host$1 permanent;
也可以改为下面
rewrite ^/(.*)$ http: //dev .wangshibo.com/$1 permanent;
或者
rewrite ^ http: //dev .wangshibo.com$request_uri? permanent;
-------------------------------------------------------

配置2：
server {
    listen 80;
    server_name dev.wangshibo.com;
    index index.html index.php index.htm;

    access_log   /usr/local/nginx/logs/8080-access .log main;
    error_log   /usr/local/nginx/logs/8080-error .log;

    return       301 https: // $server_name$request_uri;       // 这是nginx最新支持的写法

    location ~ / {
    root  /var/www/html/8080 ;
    index index.html index.php index.htm;
    }
    }


配置3：这种方式适用于多域名的时候，即访问wangshibo.com的http也会强制跳转到https: //dev .wangshibo.com上面
server {
    listen 80;
    server_name dev.wangshibo.com wangshibo.com *.wangshibo.com;
    index index.html index.php index.htm;

    access_log   /usr/local/nginx/logs/8080-access .log main;
    error_log   /usr/local/nginx/logs/8080-error .log;

    if  ($host ~*  "^wangshibo.com$" ) {
    rewrite ^/(.*)$ https: //dev .wangshibo.com/ permanent;
    }

    location ~ / {
    root  /var/www/html/8080 ;
    index index.html index.php index.htm;
    }
    }


配置4：下面是最简单的一种配置
server {
    listen 80;
    server_name dev.wangshibo.com;
    index index.html index.php index.htm;

    access_log   /usr/local/nginx/logs/8080-access .log main;
    error_log   /usr/local/nginx/logs/8080-error .log;

    if  ($host =  "dev.wangshibo.com" ) {
       rewrite ^/(.*)$ http: //dev .wangshibo.com permanent;
    }

    location ~ / {
    root  /var/www/html/8080 ;
    index index.html index.php index.htm;
    }
    }

---------------二、采用nginx的497状态码---------------------

497 - normal request was sent to HTTPS
解释：当网站只允许https访问时，当用http访问时nginx会报出497错误码

思路：
利用error_page命令将497状态码的链接重定向到https: //dev .wangshibo.com这个域名上

配置实例：
如下访问dev.wangshibo.com或者wangshibo.com的http都会被强制跳转到https
server {
    listen 80;
    server_name dev.wangshibo.com wangshibo.com *.wangshibo.com;
    index index.html index.php index.htm;

    access_log   /usr/local/nginx/logs/8080-access .log main;
    error_log   /usr/local/nginx/logs/8080-error .log;

    error_page 497  https: // $host$uri?$args;

    location ~ / {
    root  /var/www/html/8080 ;
    index index.html index.php index.htm;
    }
    }


也可以将80和443的配置放在一起：
server {
    listen       127.0.0.1:443;   #ssl端口
    listen       127.0.0.1:80;    #用户习惯用http访问，加上80，后面通过497状态码让它自动跳到443端口
    server_name  dev.wangshibo.com;
    #为一个server{......}开启ssl支持
    ssl                  on;
    #指定PEM格式的证书文件
    ssl_certificate       /etc/nginx/wangshibo .pem;
    #指定PEM格式的私钥文件
    ssl_certificate_key   /etc/nginx/wangshibo .key;

    #让http请求重定向到https请求
    error_page 497  https: // $host$uri?$args;

    location ~ / {
    root  /var/www/html/8080 ;
    index index.html index.php index.htm;
    }
    }

---------------三、利用meta的刷新作用将http跳转到https---------------------

上述的方法均会耗费服务器的资源，可以借鉴百度使用的方法：巧妙的利用meta的刷新作用，将http跳转到https
可以基于http: //dev .wangshibo.com的虚拟主机路径下写一个index.html，内容就是http向https的跳转

将下面的内容追加到index.html首页文件内
[root@localhost ~] # cat /var/www/html/8080/index.html

"refresh"  content= "0;url=https://dev.wangshibo.com/" >
< /html >

[root@localhost ~] # cat /usr/local/nginx/conf/vhosts/test.conf
server {
    listen 80;
    server_name dev.wangshibo.com wangshibo.com *.wangshibo.com;
    index index.html index.php index.htm;

    access_log   /usr/local/nginx/logs/8080-access .log main;
    error_log   /usr/local/nginx/logs/8080-error .log;

    #将404的页面重定向到https的首页
    error_page  404 https: //dev .wangshibo.com/;

    location ~ / {
    root  /var/www/html/8080 ;
    index index.html index.php index.htm;
    }
    }

-----------------------------------------------------------------------------------------------------------------------------
下面是nginx反代tomcat，并且http强制跳转至https。
访问http://zrx.wangshibo.com和访问http://172.29.34.33:8080/zrx/结果是一样的

[root@BJLX_34_33_V vhosts] # cat zrx.conf
server {
    listen 80;
    server_name zrx.wangshibo.com;
    index index.html index.php index.htm;

    access_log  logs /access .log;
    error_log   logs /error .log;

    return       301 https: // $server_name$request_uri;

    location ~ / {
    root  /data/nginx/html ;
    index index.html index.php index.htm;
    }
    }


[root@BJLX_34_33_V vhosts] # cat ssl-zrx.conf
upstream tomcat8 {
    server 172.29.34.33:8080 max_fails=3 fail_timeout=30s;
}

server {
   listen 443;
   server_name zrx.wangshibo.com;
   ssl on;

   ### SSL log files ###
   access_log logs /ssl-access .log;
   error_log logs /ssl-error .log;

### SSL cert files ###
   ssl_certificate ssl /wangshibo .cer;
   ssl_certificate_key ssl /wangshibo .key;
   ssl_session_timeout 5m;

   location / {
   proxy_pass http: //tomcat8/zrx/ ;
   proxy_next_upstream error timeout invalid_header http_500 http_502 http_503;
   proxy_set_header Host $host;
   proxy_set_header X-Real-IP $remote_addr;
   proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
   proxy_set_header X-Forwarded-Proto https;
   proxy_redirect off;
}
}

---------------四、通过proxy_redirec方式---------------------

解决办法：
# re-write redirects to http as to https, example: /home
proxy_redirect http: //  https: // ;