java项目 Nginx+Lua+Redis ip次数限制 非集群

本文参考文章  http://www.ttlsa.com/nginx/nginx-lua-redis/
                       http://lib.csdn.net/article/redis/18139
按照文章中步骤开始安装，安装完成之后安装目录如下本文所有软件均为tar.gz源代码包安装方式



access.lua文件放置地址



access.lua文件内容

ip_bind_time = 600 --封禁IP时间
ip_time_out = 30 --指定ip访问频率时间段

connect_count = 20 --指定ip访问频率计数最大值

--连接redis
local redis = require "resty.redis"
local red = redis:new()
local ok, err = red:connect("127.0.0.1", 6379)
red:set_timeout(1000) -- 1 sec

--如果连接失败，跳转到脚本结尾
if not ok then
goto A
end

--
--查询ip是否在封禁段内，若在则返回403错误代码
--因封禁时间会大于ip记录时间，故此处不对ip时间key和计数key做处理
is_bind, err = red:get("bind:"..ngx.var.remote_addr)
if is_bind == '1' then
ngx.exit(403)
goto A
end

--如果ip记录时间大于指定时间间隔或者记录时间或者不存在ip时间key则重置时间key和计数key
--如果ip时间key小于时间间隔，则ip计数+1，且如果ip计数大于ip频率计数，则设置ip的封禁key为1
--同时设置封禁key的过期时间为封禁ip的时间
start_time, err = red:get("time:"..ngx.var.remote_addr)
ip_count, err = red:get("count:"..ngx.var.remote_addr)

if start_time == ngx.null or os.time() - start_time > ip_time_out then
res, err = red:set("time:"..ngx.var.remote_addr , os.time())
res, err = red:set("count:"..ngx.var.remote_addr , 1)
else
ip_count = ip_count + 1
res, err = red:incr("count:"..ngx.var.remote_addr)
if ip_count >= connect_count then
res, err = red:set("bind:"..ngx.var.remote_addr, 1)
res, err = red:expire("bind:"..ngx.var.remote_addr, ip_bind_time)
end
end

-- 结束标记
::A::
local ok, err = red:close()

nginx.conf配置脚本
user apache apache;
worker_processes 16;
worker_rlimit_nofile 65535;

error_log logs/error.log;
events {
use epoll;
worker_connections 65535;
}

http {

include mime.types;
default_type application/octet-stream;
server_tokens off;
server_names_hash_bucket_size 128;

keepalive_timeout 90;
client_header_buffer_size 4k;
client_body_buffer_size 8m;
client_max_body_size 500m;
large_client_header_buffers 8 1024k;
client_header_timeout 3m;
client_body_timeout 3m;
send_timeout 3m;
connection_pool_size 256;
request_pool_size 4k;
output_buffers 16 128k;
postpone_output 1460;
fastcgi_connect_timeout 500;
fastcgi_send_timeout 300;
fastcgi_read_timeout 300;
fastcgi_buffer_size 1024k;
fastcgi_buffers 16 256k;
#fastcgi_busy_buffers_size 512k;
fastcgi_busy_buffers_size 1024k;
#fastcgi_temp_file_write_size 512k;
fastcgi_temp_file_write_size 1024k;
fastcgi_temp_path /dev/shm;

open_file_cache max=65536 inactive=20s;
open_file_cache_min_uses 1;
open_file_cache_valid 30s;

tcp_nodelay on;
gzip on;
gzip_min_length 1k;
gzip_buffers 16 128k;
gzip_http_version 1.1;
gzip_types text/plain text/css text/xml application/javascript application/x-javascript application/xml application/rss+xml;

proxy_buffering off;
proxy_connect_timeout 600;
proxy_send_timeout 600;
proxy_buffer_size 48k;
proxy_buffers 16 128k;
proxy_busy_buffers_size 256k;
proxy_temp_file_write_size 256k;
proxy_read_timeout 600;
proxy_set_header Host $http_host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

#log_format access '$http_x_forwarded_for - [$time_local] "GET http://$host$request_uri $server_protocol" '
#'$status $body_bytes_sent "$http_referer" '
#'"$http_user_agent"';

#log_format main '$http_x_forwarded_for - $remote_user [$time_local] "$request" '
#'$status $body_bytes_sent "$http_referer" '
#'"$http_user_agent" ';
log_format main '"$http_x_forwarded_for" - [$time_local] "$request" $status $body_bytes_sent "$http_referer" "$http_user_agent" $remote_addr $request_time';

access_log logs/access.log main;

include vhost/*.conf;
upstream captcha-service {
server 127.0.0.1:8080;
}
lua_package_path "/usr/local/nginx/lua-resty-redis-0.15/lib/?.lua;;";
}

nginx.conf 中配置文件引用文件 

include vhost/*.conf;

server {
      listen 80 ;
      server_name captcha.com;
      #index  index.php;
      #charset utf8;
       location  /  {
access_by_lua_file /usr/local/nginx/access.lua;
        proxy_next_upstream  http_502 http_504 error  timeout invalid_header;
        proxy_pass  http://captcha-service;
        proxy_set_header  Host $host;
        proxy_set_header X-forwarded-for        $remote_addr;
        proxy_set_header x-Real-IP        $remote_addr;

  }
}

访问地址为 127.0.0.1/captcha-service  项目访问成功
在安装过程中 通过 proxy_pass访问项目 可以成功  但是 upstream的方式则出现404的问题   原因是我启动nginx的方式有问题 我当时启动命令为
进入到sbin目录下输入./nginx -c /usr/local/nginx/conf/nginx.conf后来同事说用
/usr/local/nginx/sbin/nginx的方式启动就可以了