centos7下配置nginx反向代理負載均衡叢集
一,實驗介紹
利用三臺centos7虛擬機器搭建簡單的nginx反向代理負載叢集,
三臺虛擬機器地址及功能介紹
192.168.1.188 nginx負載均衡器
192.168.1.189 web01伺服器
192.168.1.190 web02伺服器
軟體準備:
centos7.4 x86_64
nginx-1.6.3.tar.gz (http://nginx.org/download/nginx-1.6.3.tar.gz)
二,安裝nginx軟體(以下操作三臺虛擬機器都要進行)
1,安裝依賴軟體包命令集合
yum -y install openssl openssl-devel pcre pcre-devel gcc
2,安裝nginx軟體包命令集合
mkdir /app
cd /app
wget -q http://nginx.org/download/nginx-1.6.3.tar.gz
useradd -s /sbin/nologin -M
tar xf nginx-1.6.3.tar.gz
cd nginx-1.6.3
./configure --user=nginx --group=nginx --prefix=/app/nginx --with-http_stub_status_module --with-http_ssl_module
make && make install
三,配置檔案
1,(以下操作在web01和web02上進行)
vim /app/nginx/conf/nginx.conf
將配置檔案修改為以下內容
worker_processes 1; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; sendfile on; keepalive_timeout 65; log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "http_referer" ' '"$http_user_agent" " $http_x_forwarded_for"'; server { listen 80; server_name bbs.dengchuanghai.org; location / { root html/bbs; index index.html index.htm; } access_log logs/access_bbs.log main; } }
mkdir /app/nginx/html/bbs
echo "192.168.1.189 bbs" >>/app/nginx/html/bbs/index.html 189
echo "192.168.1.189 bbs.dengchuanghai.org" >> /etc/hosts 189
echo "192.168.1.190 bbs" >>/app/nginx/html/bbs/index.html 190
echo "192.168.1.190 bbs.dengchuanghai.org" >> /etc/hosts
(分別在兩臺web伺服器上輸入以上內容)
然後分別啟動nginx
/app/nginx/sbin/nginx -t (檢查配置檔案有無錯誤)
/app/nginx/sbin/nginx 啟動
ss -tnlp | grep 80
使用curl bbs.dengchuanghai.org 看是否成功
2,以下操作在nginx負載均衡器上進行
vim /app/nginx/conf/nginx.conf
更改為如下內容
worker_processes 1;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
upstream www_server_pools{
server 192.168.1.190:80 weight=1;
server 192.168.1.189:80 weight=1;
}
server {
listen 80;
server_name www.dengchuanghai.org;
location / {
proxy_pass http://www_server_pools;
}
}
}
echo "192.168.1.188 www.dengchuanghai,org" >> /etc/hosts
檢查語法
/app/nginx/sbin/nginx -t
啟動服務
/app/nginx/sbin/nginx
使用curl www.dengchuanghai.org
發現結果輸出為兩臺伺服器輪流輸出
實驗結束 ,