# 什么是反向代理和负载均衡
# 负载均衡的实现
# HTTP Upstream、server、ip_hash
ip_hash
固定ip
upstream
设置
server
# mac上基本环境准备
在已经安装brew情况下操作 1、brew search nginx brew install nginx 2、brew info nginx 3、nginx -v 4、启动：nginx 停止：nignx -s stop 重启：nignx -s reload 5、默认端口：8080 6、Mac安装路径：/user/local/etc/ 7、cd cat nginx.conf
#user nobody; //指定用户名
worker_processes 1; //进程 cpu核数
//日志
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
//不要动
#pid logs/nginx.pid;
events {
worker_connections 1024;//最大连接数
}
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;
server {
listen 8080;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
root html;
index index.html index.htm;
}
#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;
# }
#}
include servers/*;
}
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8、nginx -t 看是否生效 9、nginx -c xxxx.conf 不对原文件修改，自己新建文件
# 提交给运维的配置
http{
upstream firsttest{
ip_hash;
server:192.168.0.21 weight=2;
server:192.168.0.33;
}
server{
listen:8080;
location / {
proxy_pass http://firsttest;
}
}
}
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