单节点nginx为两台apache服务器提供负载均衡

需求：本实验为单节点nginx为两台apache服务器提供负载均衡，所有配置为最简单

1.初始化3台测试server，该关的关了

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[root@host101 ~]# vim /etc/hosts 192.168.1.101   ng-master 192.168.1.161   web1 192.168.1.162   web2   [root@host101 ~]# yum clean all [root@host101 ~]# systemctl stop firewalld.service [root@host101 ~]# systemctl disable firewalld.service [root@host101 ~]# sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config

2.配置web1,web2的apache服务

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[root@host161 ~]# yum -y install httpd [root@host161 ~]# systemctl start httpd [root@host161 ~]# systemctl enable httpd ln -s ‘/usr/lib/systemd/system/httpd.service‘ ‘/etc/systemd/system/multiuser.target.wants/httpd.service‘ [root@host161 ~]# cat /var/www/html/index.html hello this lvs-web1

3.通过yum安装配置nginx节点

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[root@host101 ~]# vim /etc/yum.repos.d/nginx.repo [nginx] name=nginx repo baseurl=http://nginx.org/packages/centos/7/x86_64/ gpgcheck=0 enabled=1   [root@host101 ~]# yum clean all [root@host101 ~]# yum -y install nginx [root@host101 ~]# vim /usr/share/nginx/html/index.html <h1>Welcome to ng-master!</h1> [root@host101 ~]# cd /etc/nginx/conf.d/ [root@host101 conf.d]# mv default.conf default.conf.1 [root@host101 ~]# vim /etc/nginx/conf.d/web.conf     upstream myapp1 {         server web1;         server web2;     }       server {         listen 80;           location / {             proxy_pass http://myapp1;         }     }   [root@host101 ~]# systemctl restart nginx.service

4.查看nginx相关日志

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[root@host101 conf.d]# tail -f /var/log/messages [root@host101 conf.d]# tail -f /var/log/nginx/access.log [root@host101 conf.d]# tail -f /var/log/nginx/error.log

5.通过浏览器访问测试http://192.168.1.101/ 或者 http://myapp1/ 可发现流量在web1和web2之间跳转

参考：

http://www.linuxdiyf.com/linux/12955.html
http://nginx.org/en/linux_packages.html
http://blog.csdn.net/e421083458/article/details/30086413