Nginx配置基于ip的虚拟主机

我是在centos7虚拟机上进行实验的
该实验基于添加好ip的基础上，如何给网卡添加ip请查阅我的博客
先来看一下我的ip

[root@localhost nginx]# ifconfig
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.3.128  netmask 255.255.255.0  broadcast 192.168.3.255
        inet6 fe80::6b14:b58e:faa2:525  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:5e:7c:27  txqueuelen 1000  (Ethernet)
        RX packets 62179  bytes 43830505 (41.8 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 33693  bytes 4570753 (4.3 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ens33:1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.3.123  netmask 255.255.255.0  broadcast 192.168.3.255
        ether 00:0c:29:5e:7c:27  txqueuelen 1000  (Ethernet)

ens33:2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.3.125  netmask 255.255.255.0  broadcast 192.168.3.255
        ether 00:0c:29:5e:7c:27  txqueuelen 1000  (Ethernet)

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1  (Local Loopback)
        RX packets 185219  bytes 29342174 (27.9 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 185219  bytes 29342174 (27.9 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

virbr0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 192.168.122.1  netmask 255.255.255.0  broadcast 192.168.122.255
        ether 52:54:00:61:e7:bc  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

[root@localhost nginx]# 

安装好nginx之后（方法有说过了，这里不重复）
安装路径不知道你装哪里，直接 find / -name nginx.conf并进行编辑

[root@localhost nginx]# cat nginx.conf|grep -v "#"|grep -v "^$"
worker_processes  1;#这个参数一般可设为cpu核数，例如我的cpu是i3 3110m，那么这里我就可以通过修改为4来提高性能，但目前我还没进行到那步，所以就先在这里说一下而已
events {
    worker_connections  1024;
}
http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    keepalive_timeout  65;
    server {
        listen       80;             #监听的端口，这里是默认的ip128
        server_name  localhost;      #服务器名
        location / {
            root   html;             #网站目录，是nginx安装目录下的html
            index  index.html index.htm index.php;   #默认页面
        }
        error_page  404              /404.html;      #错误页面
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
        location ~ \.php$ {                           #相当于启用php吧
            root           html;                      #这里需要根据网站目录进行修改
            fastcgi_pass   127.0.0.1:9000;
            fastcgi_index  index.php;
            fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
            include        fastcgi_params;
        }
    }
    server{
        listen 192.168.3.123:80;
        server_name 192.168.3.123;
        access_log logs/bp2.access.log combined;     #日志路径，combined 日志格式名称
        location /
        {
            index index.html index.php;
            root html/bp2;
        }
        location ~ \.php$ {
            root           html/bp2;
            fastcgi_pass   127.0.0.1:9000;
            fastcgi_index  index.php;
            fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
            include        fastcgi_params;
        }

    }
    server{
        listen 192.168.3.125:80;
        server_name 192.168.3.125;
        location /{
            root html/bp3;
            index index.html index.php;
        }
        location ~ \.php$ {
            root           html/bp3;
            fastcgi_pass   127.0.0.1:9000;
            fastcgi_index  index.php;
            fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
            include        fastcgi_params;
        }
    }
}
[root@localhost nginx]# 

需要重启nginx而已，重启命令 nginx -s reload（这个命令需要进入到sbin文件夹下，不是那个地方都可以的）。
以后注意了，凡是修改了服务器的配置文件，一般都需要重启服务器

[root@localhost nginx]# cat html/bp3/index.php
<?php
echo bp3;
?>
[root@localhost nginx]# 

来看一下效果