Linux enterprise actual combat-----Realize reverse proxy load balancing through nginx + nginx virtual host

Realize reverse proxy load balancing through nginx

    cd /root/nginx-1.19.1/auto/cc
    vim gcc

    cd /root/nginx-1.19.1/src/core/
    vim nginx.h     隐藏版本

    cd /usr/local/nginx/sbin
    ./nginx
    cd /usr/local/nginx/logs
    ls                            启动nginx后查找其pid文件位置

	ln -s /usr/local/nginx/sbin/nginx /usr/local/sbin  添加软连接
    cd /lib/systemd/system
    vim nginx.service         编辑nginx启动脚本
    systemctl daemon-reload

    vim /etc/security/limits.conf 
     
    useradd -M -d /usr/local/nginx/ -s /sbin/nologin nginx   创建用户nginx，后面配置文件会用到

    vim /usr/local/nginx/conf/nginx.conf
     
    systemctl reload nginx

Use curl to access server2 in server1 and find that load balancing has been achieved

You can also set the access weight algorithm

Set the weight of server3 to 3:

The health check that nginx comes with:

server4：
 
systemctl stop httpd