49.Nginx防盗链、Nginx访问控制、Nginx解析php相关配置、Nginx代理

一、Nginx防盗链

• 配置如下，可以和上面的配置结合起来

vim /usr/local/nginx/conf/vhost/test.com.conf

location ~* ^.+\.(gif|jpg|png|swf|flv|rar|zip|doc|pdf|gz|bz2|jpeg|bmp|xls)$  //location后面的*是忽略大小写
{
    expires 7d;
    valid_referers none blocked server_names  *.test.com ;    //白名单
    if ($invalid_referer) {
        return 403;
    }
    access_log off;
}

/usr/local/nginx/sbin/nginx -t
/usr/local/nginx/sbin/nginx -s reload
echo '121332132' >> /data/wwwroot/test.com/2.jpg
 curl -x127.0.0.1:80 test.com/2.jpg -I
 curl -e "http://www.baidu.com" -x127.0.0.1:80 test.com/2.jpg -I

二、Nginx访问控制

• 需求：访问/admin/目录的请求，只允许某几个IP访问，配置如下：

vim /usr/local/nginx/conf/vhost/test.com.conf

location /admin/
{
    allow 192.168.127.1;
    allow 127.0.0.1;
    deny all;
}

mkdir /data/wwwroot/test.com/admin/
 echo “test,test”>/data/wwwroot/test.com/admin/1.html
/usr/local/nginx/sbin/nginx -t
/usr/local/nginx/sbin/nginx -s reload
 curl -x127.0.0.1:80 test.com/admin/1.html -I
 curl -x192.168.1.111:80 test.com/admin/1.html -I

• 之前添加了一个ens37虚拟网卡，现在将它改为主机模式，获取主机ip，用于测试。
  

• 匹配正则限制

location ~ .*(upload|image)/.*\.php$
{
        deny all;
}

mkdir /data/wwwroot/test.com/upload
echo 12321 > /data/wwwroot/test.com/upload/1.php
curl -x127.0.0.1:80 test.com/upload/1.php 
echo 12321 > /data/wwwroot/test.com/upload/1.txt
curl -x127.0.0.1:80 test.com/upload/1.txt

• 根据user_agent限制

if ($http_user_agent ~ 'Spider/3.0|YoudaoBot|Tomato')
{
      return 403;
}

deny all和return 403效果一样

curl -x127.0.0.1:80 test.com -I
curl -A 'Tomato' -x127.0.0.1:80 test.com -I

三、Nginx解析php的配置

vim /usr/local/nginx/conf/vhost/test.com.conf

location ~ \.php$
    {
        include fastcgi_params;
        fastcgi_pass unix:/tmp/php-fcgi.sock;
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME /data/wwwroot/test.com$fastcgi_script_name;
    }

• fastcgi_pass 用来指定php-fpm监听的地址或者socket

• 指定监听地址时 fastcgi_pass 127.0.0.1 这种格式

vim /data/wwwroot/test.com/example.php

写入

<?php
phpinfo();

curl -x127.0.0.1:80 test.com/example.php

四、Nginx代理

cd /usr/local/nginx/conf/vhost
dig   www.baidu.com    //查找一个网站的ip

如果dig命令不存在

yum   install   -y   bind* 

curl -x127.0.0.1:80 www.baidu.com/robots.txt

vim proxy.conf //加入如下内容
server
{
    listen 80;
    server_name www.baidu.com;

    location /
    {
        proxy_pass      http://61.135.169.121/;
        proxy_set_header Host   $host;
        proxy_set_header X-Real-IP      $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
}

/usr/local/nginx/sbin/nginx -t
/usr/local/nginx/sbin/nginx -s reload
curl -x127.0.0.1:80 www.baidu.com/robots.txt