在CentOS系统上实现LAMP(Linux, Apache, MySQL, PHP)负载均衡,可以采用多种方法。以下是两种常见的方法:
安装Nginx
sudo yum install nginx
配置Nginx
编辑Nginx配置文件 /etc/nginx/nginx.conf
或创建一个新的配置文件 /etc/nginx/conf.d/load_balancer.conf
。
http {
upstream backend {
server 192.168.1.1:80;
server 192.168.1.2:80;
server 192.168.1.3:80;
}
server {
listen 80;
location / {
proxy_pass http://backend;
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_set_header X-Forwarded-Proto $scheme;
}
}
}
启动Nginx
sudo systemctl start nginx
sudo systemctl enable nginx
安装HAProxy
sudo yum install haproxy
配置HAProxy
编辑HAProxy配置文件 /etc/haproxy/haproxy.cfg
。
global
log /dev/log local0
log /dev/log local1 notice
daemon
defaults
log global
mode http
option httplog
option dontlognull
timeout connect 5000ms
timeout client 50000ms
timeout server 50000ms
frontend http_front
bind *:80
default_backend http_back
backend http_back
balance roundrobin
server server1 192.168.1.1:80 check
server server2 192.168.1.2:80 check
server server3 192.168.1.3:80 check
启动HAProxy
sudo systemctl start haproxy
sudo systemctl enable haproxy
通过以上方法,你可以在CentOS系统上实现LAMP环境的负载均衡。选择哪种方法取决于你的具体需求和偏好。