1、Nginx官网下载安装程序,http://nginx.org/
2、启动命令
启动:start nginx.exe
停止:nginx -s stop
重新加载: nginx -s reload
3、配置文件
路径 Nginx/conf/nginx.conf,配置文件内容,简单的实现一个负责均衡效果
#user nobody;
worker_processes ; #error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info; #pid logs/nginx.pid; events {
worker_connections ;
} http {
include mime.types;
default_type application/octet-stream; #log_format main '$remote_addr - $remote_user [$time_local] "$request" '
# '$status $body_bytes_sent "$http_referer" '
# '"$http_user_agent" "$http_x_forwarded_for"'; #access_log logs/access.log main; sendfile on;
#tcp_nopush on; #keepalive_timeout ;
keepalive_timeout ; #gzip on; #服务器的集群
upstream wei.com{ #服务器集群名字 server 127.0.0.1:;#服务器配置 weight是权重的意思,权重越大,分配的概率越大。
server 127.0.0.1:;
#ip_hash;
} server {
listen ;
server_name localhost wei.com; #charset koi8-r; #access_log logs/host.access.log main; #location / {
# root html;
# index index.html index.htm;
# }
location / {
proxy_pass http://wei.com;
proxy_redirect default;
index index.aspx;
#root C:\Website\demo1
} #error_page /.html; # redirect server error pages to the static page /50x.html
#
error_page /50x.html;
location = /50x.html {
root html;
} # proxy the PHP scripts to Apache listening on 127.0.0.1:
#
#location ~ \.php$ {
# proxy_pass http://127.0.0.1;
#} # pass the PHP scripts to FastCGI server listening on 127.0.0.1:
#
#location ~ \.php$ {
# root html;
# fastcgi_pass 127.0.0.1:;
# fastcgi_index index.php;
# fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;
# include fastcgi_params;
#} # deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /\.ht {
# deny all;
#}
} # another virtual host using mix of IP-, name-, and port-based configuration
#
#server {
# listen ;
# listen somename:;
# server_name somename alias another.alias; # location / {
# root html;
# index index.html index.htm;
# }
#} # HTTPS server
#
#server {
# listen ssl;
# server_name localhost; # ssl_certificate cert.pem;
# ssl_certificate_key cert.key; # ssl_session_cache shared:SSL:1m;
# ssl_session_timeout 5m; # ssl_ciphers HIGH:!aNULL:!MD5;
# ssl_prefer_server_ciphers on; # location / {
# root html;
# index index.html index.htm;
# }
#} }
index.aspx 后台源码
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Index.aspx.cs" Inherits="OpenLayerDemo.Index" %> <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Button ID="btnSet" runat="server" OnClick="btnSet_Click" Text="Set Session" />
</div>
</form>
</body>
</html>
using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls; namespace OpenLayerDemo
{
public partial class Index : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
Response.Write(System.Configuration.ConfigurationManager.AppSettings["val"] + "<br/>"); if (Session["a"] != null)
{
Response.Write(Session["a"]);
}
else
{
Response.Write("session empty");
}
Response.Write("<br/>" + Request.Url.ToString());
} protected void btnSet_Click(object sender, EventArgs e)
{
Session["a"] = "Wilson.fu";
}
}
}
关于配置参数:
nginx的upstream目前支持的5种方式的分配 1、轮询(默认)
每个请求按时间顺序逐一分配到不同的后端服务器,如果后端服务器down掉,能自动剔除。
upstream backserver {
server 192.168.0.14;
server 192.168.0.15;
} 2、指定权重
指定轮询几率,weight和访问比率成正比,用于后端服务器性能不均的情况。
upstream backserver {
server 192.168.0.14 weight=10;
server 192.168.0.15 weight=10;
} 3、IP绑定 ip_hash
每个请求按访问ip的hash结果分配,这样每个访客固定访问一个后端服务器,可以解决session的问题。
upstream backserver {
ip_hash;
server 192.168.0.14:88;
server 192.168.0.15:80;
} 4、fair(第三方)
按后端服务器的响应时间来分配请求,响应时间短的优先分配。
upstream backserver {
server server1;
server server2;
fair;
} 5、url_hash(第三方)
按访问url的hash结果来分配请求,使每个url定向到同一个后端服务器,后端服务器为缓存时比较有效。
upstream backserver {
server squid1:3128;
server squid2:3128;
hash $request_uri;
hash_method crc32;
} 在需要使用负载均衡的server中增加 proxy_pass http://backserver/;
upstream backserver{ ip_hash;
server 127.0.0.1:9090 down; (down 表示单前的server暂时不参与负载)
server 127.0.0.1:8080 weight=2; (weight 默认为1.weight越大,负载的权重就越大)
server 127.0.0.1:6060;
server 127.0.0.1:7070 backup; (其它所有的非backup机器down或者忙的时候,请求backup机器)
} max_fails :允许请求失败的次数默认为1.当超过最大次数时,返回proxy_next_upstream 模块定义的错误 fail_timeout:max_fails次失败后,暂停的时间
Nginx配置说明
按照MSDN的标准说法:“对密钥进行配置,以便将其用于对 Forms 身份验证 Cookie 数据和视图状态数据进行加密和解密,并将其用于对进程外会话状态标识进行验证。”也就是说Asp.Net的很多加密,都是依赖于machineKey里面的值,例如Forms 身份验证 Cookie、ViewState的加密。默认情况下,Asp.Net的配置是自己动态生成,如果单台服务器当然没问题,但是如果多台服务器负载均衡,machineKey还采用动态生成的方式,每台服务器上的machinekey值不一致,就导致加密出来的结果也不一致,不能共享验证和ViewState,所以对于多台服务器负载均衡的情况,一定要在每台站点配置相同的machineKey。 machineKey生成的算法: validationKey = CreateKey(20); decryptionKey = CreateKey(24); protected string CreateKey(int len) { byte[] bytes = new byte[len]; new RNGCryptoServiceProvider().GetBytes(bytes); StringBuilder sb = new StringBuilder(); for(int i = 0; i < bytes.Length; i++) { sb.Append(string.Format("{0:X2}",bytes[i])); } return sb.ToString(); } 附参考的matchineKey配置: <?xml version="1.0"?> <configuration> <system.web> <machineKey validationKey="3FF1E929BC0534950B0920A7B59FA698BD02DFE8" decryptionKey="280450BB36319B474C996B506A95AEDF9B51211B1D2B7A77" decryption="3DES" validation="SHA1"/> </system.web> </configuration>
machineKey
基于redis的思路
http://www.2cto.com/kf/201402/279548.html
Nginx以windows服务方式运行见
https://github.com/daptiv/NginxService
中文帮助: