Nginx Reverse Proxy +keepalived

System version: D 2.6.32-431.el6.x86_64

Virtual Machines: four units

Environmental readiness: Close selinux; close iptables;

Two Nginx +keepalive have been installed and normal;

The other two nodes of the web work properly;

#为了更好的测试, Web 1: www.22 Web 2:www.23;

Nginx Installation:

Yum Install pcre*-y

Yum Install OpenSSL openssl-devel-y

Useradd-s/sbin/nologin-m Nginx

Wget-q http://nginx.org/download/nginx-1.6.2.tar.gz

./configure--user=nginx--group=nginx--prefix=/application/nginx1.6.2--with-http_stub_status_module--with-http_ Ssl_module

echo $?

Make && make install

echo $?

Ln-s/application/nginx1.6.2//application/nginx

/application/nginx/sbin/nginx

Keepalived Installation:

wget http://www.keepalived.org/software/keepalived-1.1.19.tar.gz

Ln-s/usr/src/kernels/2.6.32-504.1.3.el6.x86_64//usr/src/linux

Yum Install openssl*-y

Yum Install popt*-y

CD keepalived-1.1.19

./configurE

Make

Make install

/bin/cp/usr/local/etc/rc.d/init.d/keepalived/etc/init.d/
/bin/cp/usr/local/etc/sysconfig/keepalived/etc/sysconfig/
Mkdir/etc/keepalived-p
/bin/cp/usr/local/etc/keepalived/keepalived.conf/etc/keepalived/
/bin/cp/usr/local/sbin/keepalived/usr/sbin/

etc/init.d/keepalived start

Nginx Reverse Proxy configuration Example :

cd/application/nginx/conf/extra/

      VI upstream01.conf 
        upstream blog_ real_servers {
             #ip_hash;
             server 10.0.0.22:80  weight=15;
             server 10.0.0.23:80  weight=15
       }
        server {
            listen       80;
           server_name  blog.etiantian.org;
           location/{
             Proxy_pass http://blog_real_servers;

#代理多个虚拟主机需添加: Proxy_set_header host $host;

}
}

In the main configuration file nginx.conf the HTTP tag contains the configuration file extra/upstream01.conf;

Include extra/upstream01.conf;

Note: Use Nginx to do reverse proxy when try not to do the web.

An nginx can also proxy multiple websites, using multiple VIPs. for different parsing.

#两台服务器都需要配置

Keepalived configuration:

Vi/etc/keepalived/keepalived.conf

! Configuration File for Keepalived

Global_defs {
Notification_email {
[Email protected]
}
Notification_email_from [email protected]
Smtp_server 10.0.0.33
Smtp_connect_timeout 30
router_id lvs_7
}

Vrrp_instance Vi_1 {
State MASTER
Interface eth0
VIRTUAL_ROUTER_ID 55
Priority 150
Advert_int 1
Authentication {
Auth_type PASS
Auth_pass 1111
}
virtual_ipaddress {
10.0.0.33/24
}

}

Start both Nginx and keepalive in case the above configuration is checked correctly

/application/nginx/sbin/nginx-s Reload

/etc/init.d/keepalived restart

Native configuration Hosts file: Resolving VIP domain Names

Test:

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650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/57/84/wKiom1ScP5ihJpDTAACJVrlfJZU326.jpg "title="]kb9%) ' @FPE $JX) v]ow@k5p.jpg "alt=" Wkiom1scp5ihjpdtaacjvrlfjzu326.jpg "/>

#如果多次访问为同一台主机, check whether Nginx weight=15 weights have been.

Stop one of the Web services to detect if the domain name can be accessed properly ~

If both Web stops the service at the same time, the access is returned:502 Bad Gateway

Stop the keepalive of one of the hosts and test that the Web service is working correctly.

Complete!

Nginx Reverse Proxy +keepalived