实验环境1

1测试硬件准备三台虚拟机,两台做负载均衡一台做RS

2测试软件准备系统：Red Hat6.4 x86_64软件：nginx-1.8.1.tar.gz3安装之前需要先安装相关基础环境包（有些系统里面已经有了）yum install openssl

yum install libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel -y

yum install libxml2 libxml2-devel zlib zlib-devel ncurses ncurses-devel curl curl-devel -y

yum install gd gd2 gd-level gd2-devel -y

4 安装pcre软件包

wget --no-check-certificate

tar -zxf pcre-8.32.tar.gz

./configure

编译配置报错

问题描述：

checking for dirent.h... yes

checking windows.h usability... no

checking windows.h presence... no

checking for windows.h... no

configure: error: You need a C++ compiler for C++ support.

解决方法：系统包缺少C++编译器 需要安装gcc-c++的包

然后 yum 安装下就可以了

make

make install

cd ../ 到上级目录

====================pcre安装完成===============================

5 安装nginx

wget

tar -zxvf nginx-1.8.1.tar.gz

cd nginx-1.8.1

./configure --user=nginx --group=nginx --prefix=/application/nginx-1.8.1 --with-http_stub_status_module --with-http_ssl_module

说明：--user=nginx 指定用户

--group=nginx 指定组

--prefix=/application/nginx-1.8.1 指定安装路径

--with-http_stub_status_module 状态模块

--with-http_ssl_module ssl模块

useradd nginx -s /sbin/nologin -M 需要把用户创建起来 -M 不创建家目录 -s 指定非登录式 shell

make

make install

=========nginx安装完成==========================================

6 安装完后的配置

ln -s /application/nginx-1.8.1 /application/nginx

echo "/usr/local/lib" >>/etc/ld.so.conf

tail -1 /etc/ld.so.conf``

ldconfig

/application/nginx/sbin/nginx

[root@lb01 application]# ps -ef | grep nginx | grep -v grep

root 17057 1 0 16:18 ? 00:00:00 nginx: master process /application/nginx/sbin/nginx

nginx 17058 17057 0 16:18 ? 00:00:00 nginx: worker process

[root@lb01 application]# lsof -i tcp:80

COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME

nginx 17057 root 6u IPv4 82990 0t0 TCP :http (LISTEN)nginx 17058 nginx 6u IPv4 82990 0t0 TCP *:http (LISTEN)7 配置调试用于测试的web服务器注意：操作只在以下nginx web 服务器节点操作：配置并查看web服务配置结果两台RS1全部按照上面的步骤nginx服务。然后执行如下命令：RS1(192.168.232.132)echo "www.etiantian132.org">/application/nginx/html/index.htmlcat /application/nginx/html/index.html/application/nginx/sbin/nginx -s reloadRS2(192.168.232.133)echo "www.etiantian133.org">/application/nginx/html/index.htmlcat /application/nginx/html/index.html/application/nginx/sbin/nginx -s reload然后各自在本机curl下自己看下显示效果修改主配置文件实现负载均衡cd /application/nginx/confmkdir extra 创建extra目录cd extra/vim ../nginx.conf

#user  nobody;worker_processes  1;#error_log  logs/error.log;#error_log  logs/error.log  notice;#error_log  logs/error.log  info;#pid        logs/nginx.pid;events {    worker_connections  1024;}http {    include       mime.types;    default_type  application/octet-stream;    sendfile        on;    keepalive_timeout  65;    include extra/upstream01.conf;}####################################### 删除我们不需要的 添加这行内容include extra/upstream01.conf;然后我们需要在extra目录下面创建upstream01.conf 并编辑它vim extra/upstream01.conf#blog lb by cyt at 20180107upstream blog_real_server {        server 192.168.232.132:80 weight=5;    #upstream 定义一个vserver的名字                                                 blog_real_server        server 192.168.232.133:80 weight=5;}        server {                listen   80;                server_name blog.etiantian.org;                location / {                proxy_pass http://blog_real_server;   # 通过proxy_pass 定义如果访问                                                 blog.etiantian.org 自动转到                                                     blog_real_server 下面定义的两台                                                    realserver上面去        }}

检查语法

然后保存退出后

[root@lb01 conf]# /application/nginx/sbin/nginx -tnginx: the configuration file /application/nginx-1.8.1/conf/nginx.conf syntax is oknginx: configuration file /application/nginx-1.8.1/conf/nginx.conf test is successful还需要本机上面做一个本地域名解析操作 将本机的ip 解析为blog.etiantian.org

重启三台机器上面的nginx

/application/nginx/sbin/nginx -s reload然后使用curl 命令测试

可以看到多次执行 会平均分配到两台机器上面去，从而是实现负载均衡。