目录

一、基于 CentOS 7 构建 LVS-DR 集群。

1.1 配置lvs负载均衡服务

1.1.1 下载ipvsadm

 1.1.2 增加vip

1.1.3 配置ipvsadm

1.2 配置rs1

1.2.1  编写测试页面

1.2.2 手工在RS端绑定VIP、添加路由        

1.2.3 抑制arp响应

1.3 配置rs2

 1.4 测试

二、配置nginx负载均衡。

2.1 配置好环境

2.2  web服务器上添加测试页面

2.3 配置负载均衡器

2.4  开启nginx服务和web服务

2.5 测试

一、基于 CentOS 7 构建 LVS-DR 集群。

环境:

 作用环境windows测试 192.168.33.158LVS负载均衡centos7192.168.33.157web服务器1--rs1nginx:1.22,centos7192.168.33.156web服务器2--rs2Apache:2.4 , redhat9

1.1 配置lvs负载均衡服务

1.1.1 下载ipvsadm

 1.1.2 增加vip

ifconfig ens33:110 192.168.33.100

 注意:增加的IP和本机的IP需要在同一个网段。

1.1.3 配置ipvsadm

1.2 配置rs1

1.2.1  编写测试页面

1.2.2 手工在RS端绑定VIP、添加路由        

1.2.3 抑制arp响应

1.3 配置rs2

配置和rs1一样,省略。

注意:调整内核参数,关闭arp响应的时候,redhat和centos的网络设备名称是不一样的。

 1.4 测试

二、配置nginx负载均衡。

2.1 配置好环境

作用环境windows测试192.168.33.158nginx负载均衡nginx:1.22,centos7192.168.33.157web服务器1--web1nginx:1.22,centos7192.168.33.156web服务器2--web2Apache:2.4 , redhat9

确保所有的防火墙和selinx都是关闭的。 

2.2  web服务器上添加测试页面

web1:

 web2:

2.3 配置负载均衡器

主配置文件:/usr/local/nginx/conf/nginx.conf

user nginx;

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;

#log_format main '$remote_addr - $remote_user [$time_local] "$request" '

# '$status $body_bytes_sent "$http_referer" '

# '"$http_user_agent" "$http_x_forwarded_for"';

#access_log logs/access.log main;

sendfile on;

#tcp_nopush on;

#keepalive_timeout 0;

keepalive_timeout 65;

#gzip on;

include /etc/nginx/conf.d/*.conf;

server {

listen 80;

server_name localhost;

#charset koi8-r;

#access_log logs/host.access.log main;

location / {

root html;

index index.html index.htm;

}

#location / {

# root /data/web2;

# index index.html index.htm;

# auth_basic "Restricted";

# auth_basic_user_file /data/web2/webpass;

#}

location ~ \.php$ {

root html;

fastcgi_pass 127.0.0.1:9000;

fastcgi_index index.php;

fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;

include fastcgi_params;

}

#error_page 404 /404.html;

# redirect server error pages to the static page /50x.html

#

error_page 500 502 503 504 /50x.html;

location = /50x.html {

root html;

}

# proxy the PHP scripts to Apache listening on 127.0.0.1:80

#

#location ~ \.php$ {

# proxy_pass http://127.0.0.1;

#}

# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000

#

#location ~ \.php$ {

# root html;

# fastcgi_pass 127.0.0.1:9000;

# fastcgi_index index.php;

# fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;

# include fastcgi_params;

#}

# deny access to .htaccess files, if Apache's document root

# concurs with nginx's one

#

#location ~ /\.ht {

# deny all;

#}

}

# another virtual host using mix of IP-, name-, and port-based configuration

#

#server {

# listen 8000;

# listen somename:8080;

# server_name somename alias another.alias;

# location / {

# root html;

# index index.html index.htm;

# }

#}

# HTTPS server

#

#server {

# listen 443 ssl;

# server_name localhost;

# ssl_certificate cert.pem;

# ssl_certificate_key cert.key;

# ssl_session_cache shared:SSL:1m;

# ssl_session_timeout 5m;

# ssl_ciphers HIGH:!aNULL:!MD5;

# ssl_prefer_server_ciphers on;

# location / {

# root html;

# index index.html index.htm;

# }

#}

}

子配置文件:/etc/nginx/conf.d/vhost.conf

server {

listen 80;

server_name test.ng.test;

location / {

proxy_pass http://web_server;

}

}

upstream web_server {

server 192.168.33.157;

server 192.168.33.156;

}

2.4  开启nginx服务和web服务

systemctl  start nginx

systemctl  start httpd

2.5 测试

用windows测试的时候,需要修改本地的hosts文件。路径:C:\Windows\System32\drivers\etc

windows 浏览器的测试

 因为是一般轮询负载均衡,所以不断刷新页面,页面会在192.168.33.157和192.168.33.156之间交替出现。

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