nginx2_调度

client 172.18.123.28 ngx

nginx 　服务器作为代理服务器：
[root@centos87/etc/nginx/conf.d]#cat vhosts.conf
server {
listen 80 default_server;
root /data/website1;
server_name www.a.com www.google.com;
access_log /var/log/nginx/a.com.access.log compression ;

    listen 443 ssl;
    ssl_certificate /etc/nginx/conf.d/a.com.crt;
    ssl_certificate_key /etc/nginx/conf.d/a.com.key ;
    ssl_session_cache shared:sslcache:20m;
    ssl_session_timeout 10m;
     location / {
            proxy_pass http://192.168.137.97/;
    }

httpd作为后端服务器：
yum install httpd
echo rs97 > index.html

测试１：[root@client~]#curl 172.18.123.29
rs97

测试阶段2：　　修改后端服务器端口：８０８０　
[root@client~]#curl 172.18.123.29
<html>
<head><title>502 Bad Gateway</title></head> 后端报文伪响应

测试阶段3：nginx 修改proxy_pass nginx 监听端口：8080　
location / {
proxy_pass http://192.168.137.97:8080/ ;
}
[root@client~]#curl 172.18.123.29
rs97

测试阶段4：iptables -A INPUT -p tcp --dport 8080 -j DROP
[root@client~]#curl 172.18.123.29
<html>
<head><title>504 Gateway Time-out</title></head> 超时；

测试阶段5：systemctl stop httpd
[root@client~]#curl 172.18.123.29
<html>
<head><title>502 Bad Gateway</title></head>

测试阶段6 ：iptables -A INPUT -p tcp --dport 8080 -j REJECT
[root@client~]#curl 172.18.123.29
<html>
<head><title>502 Bad Gateway</title></head>

测试阶段7：结论：

nginx2_调度

验证：proxy_pass加斜杆访问的是 192.168.31.17的根目录；　//bbs
location /bbs {
proxy_pass http://192.168.31.17/
}
加斜杠：
[root@client~]#curl -L 172.18.123.29/bbs
Rs97

不加斜杠
location /bbs {
proxy_pass http://192.168.31.17
}
[root@centos17/var/www/html/bbs]#echo bbs > index.html
测试：
[root@client~]#curl 172.18.123.29/bbs/
bbs

验证：proxy_pass加斜杆访问的是 192.168.31.17的根目录；　//bbs
location /bbs {
proxy_pass http://192.168.31.17/
}
加斜杠：
[root@client~]#curl -L 172.18.123.29/bbs
Rs97

不加斜杠
location /bbs {
proxy_pass http://192.168.31.17
}
[root@centos17/var/www/html/bbs]#echo bbs > index.html
测试：
[root@client~]#curl 172.18.123.29/bbs/
bbs

动测试7：增加centos 7 动静分离text html
[root@centos17/var/www/html]#echo rs97 a.txt > a.txt
[root@centos17/var/www/html]#echo rs97 b.txt > b.txt
[root@centos17/var/www/html]#echo rs97 a.html > a.html
[root@centos17/var/www/html]#echo rs97 b.html > b.html
centos6
[root@centos6 /var/www/html]#echo rs6 a.txt > a.txt
[root@centos6 /var/www/html]#echo rs6 b.txt > b.txt
[root@centos6 /var/www/html]#echo rs6 b.html > b.html
[root@centos6 /var/www/html]#echo rs6 a.html > a.html

nginx 修改：
[root@centos87/etc/nginx/conf.d]#cat vhosts.conf
server {
listen 80 default_server;
root /data/website1;
server_name www.a.com www.google.com;
access_log /var/log/nginx/a.com.access.log compression ;

    listen 443 ssl;
    ssl_certificate /etc/nginx/conf.d/a.com.crt;
    ssl_certificate_key /etc/nginx/conf.d/a.com.key ;
    ssl_session_cache shared:sslcache:20m;
    ssl_session_timeout 10m;
     location ~ \.html$ {
            proxy_pass http://192.168.137.97;

    }
      location ~ \.txt$ {
            proxy_pass http://192.168.137.6;

    }

动静分离：

测试7：增加centos 7 动静分离text html
[root@centos17/var/www/html]#echo rs97 a.txt > a.txt
[root@centos17/var/www/html]#echo rs97 b.txt > b.txt
[root@centos17/var/www/html]#echo rs97 a.html > a.html
[root@centos17/var/www/html]#echo rs97 b.html > b.html
centos6
[root@centos6 /var/www/html]#echo rs6 a.txt > a.txt
[root@centos6 /var/www/html]#echo rs6 b.txt > b.txt
[root@centos6 /var/www/html]#echo rs6 b.html > b.html
[root@centos6 /var/www/html]#echo rs6 a.html > a.html

    listen 443 ssl;
    ssl_certificate /etc/nginx/conf.d/a.com.crt;
    ssl_certificate_key /etc/nginx/conf.d/a.com.key ;
    ssl_session_cache shared:sslcache:20m;
    ssl_session_timeout 10m;
     location ~ \.html$ {
            proxy_pass http://192.168.137.97;

    }
      location ~ \.txt$ {
            proxy_pass http://192.168.137.6;

    }

[root@client~]#curl -L 172.18.123.29/b.html
rs97 b.html
[root@client~]#curl -L 172.18.123.29/a.html
rs97 a.html
[root@client~]#curl -L 172.18.123.29/a.txt
rs6 a.txt
[root@client~]#curl -L 172.18.123.29/b.txt
rs6 b.txt

动静分离：

     location ~ \.(html|txt|css|jpg)$ {
            proxy_pass http://192.168.137.97;

    }
      location ~ \.php$ {
            proxy_pass http://192.168.137.6;

    }

nginx2_调度

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