nginx负载均衡

安装jdk环境

yum -y install java-1.8.0-openjdk*

查看是否安装成功

[root@localhost bin]# java -version
openjdk version "1.8.0_232"
OpenJDK Runtime Environment (build 1.8.0_232-b09)
OpenJDK 64-Bit Server VM (build 25.232-b09, mixed mode)

安装tomcat

tar -zvxf apache-tomcat-8.5.47.tar.gz
mkdir /usr/local/tomcat1
mkdir /usr/local/tomcat2
cp apache-tomcat-8.5.47 /usr/local/tomcat1
cp apache-tomcat-8.5.47 /usr/local/tomcat2

更改tomcat2端口号为8082

vim /usr/local/tomcat2/apache-tomcat-8.5.47/conf/server.xml 
<Server port="18005" shutdown="SHUTDOWN">
<Connector port="8082" protocol="HTTP/1.1"
<Connector port= "18009" protocol="AJP/1.3" redirectPort="8443" />

浏览器访问http://192.168.1.128:8080/

浏览器访问http://192.168.1.128:8082/

安装nginx

首先安装依赖

yum install -y zlib zlib-devel gcc-c++ pcre pcre-devel openssl-devel

tar -zvxf nginx-1.16.1.tar.gz
cd /nginx-1.16.1
./configure && make && make install
whereis nginx    #查看nginx 位置
cd /usr/local/nginx/sbin/
./nginx
ps -ef |grep nginx

访问http://192.168.1.128/

更改nginx.conf 配置文件

创建一个fzjh.conf文件

vim /usr/local/nginx/conf/include/fzjh.conf

写入：

upstream www.nginx.com {  #这里的名称要跟proxy_pass内的名称一致 
    server 192.168.1.128:8080 weight=1; #weight:权重，默认是1，数值越大提供服务的次数就越多
    server 192.168.1.128:8082 weight=1;
}

server {
    listen 80;
    server_name www.test.com;
    access_log logs/bbs.access.log;
    error_log logs/bbs.error.log;
    #root html; 
    #index index.html index.htm index.jsp index.php; 

    location / {
        proxy_pass http://www.nginx.com; #这里的http://www.nginx.com与上面的upstream要一样

        #Proxy Settings 
        proxy_redirect off;
        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_next_upstream error timeout invalid_header http_500 http_502 http_503 http_504;
        proxy_max_temp_file_size 0;
        proxy_connect_timeout 90;
        proxy_send_timeout 90;
        proxy_read_timeout 90;
        proxy_buffer_size 4k;
        proxy_buffers 4 32k;
        proxy_busy_buffers_size 64k;
        proxy_temp_file_write_size 64k;
    }
}

配置nginx.conf

 vim /usr/local/nginx/conf/nginx.conf

重启nginx

ps -ef | grep nginx
kill 28140
cd /usr/local/nginx/sbin/
./nginx

访问http://192.168.1.128/

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