Nginx系列—虚拟主机配置的三种方式（一）

Nginx配置虚拟主机支持3种方式：基于IP的虚拟主机配置，基于端口的虚拟主机配置，基于域名的虚拟主机配置。

1、基于IP的虚拟主机配置

如果同一台服务器有多个IP，可以使用基于IP的虚机主机配置，将不同的服务绑定在不同的IP上。

1.1 假设服务器有个IP地址为192.168.2.150，首先使用ifconfig在同一个网络接口上绑定其他3个IP。

[root@localhost ~]# ifconfig ens33:1 192.168.2.151/24 up[root@localhost ~]# ifconfig ens33:2 192.168.2.152/24 up[root@localhost ~]# ifconfig ens33:3 192.168.2.153/24 up[root@localhost ~]# ifconfigens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500        inet 192.168.2.106  netmask 255.255.255.0  broadcast 192.168.2.255        inet6 fe80::2a8d:be6:a4a8:ea0  prefixlen 64  scopeid 0x20<link>        ether 00:0c:29:16:90:ae  txqueuelen 1000  (Ethernet)        RX packets 1220  bytes 87955 (85.8 KiB)        RX errors 0  dropped 0  overruns 0  frame 0        TX packets 206  bytes 23755 (23.1 KiB)        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0ens33:1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500        inet 192.168.2.151  netmask 255.255.255.0  broadcast 192.168.2.255        ether 00:0c:29:16:90:ae  txqueuelen 1000  (Ethernet)ens33:2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500        inet 192.168.2.152  netmask 255.255.255.0  broadcast 192.168.2.255        ether 00:0c:29:16:90:ae  txqueuelen 1000  (Ethernet)ens33:3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500        inet 192.168.2.153  netmask 255.255.255.0  broadcast 192.168.2.255        ether 00:0c:29:16:90:ae  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 72  bytes 6252 (6.1 KiB)        RX errors 0  dropped 0  overruns 0  frame 0        TX packets 72  bytes 6252 (6.1 KiB)        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

1.2 3个IP对应的域名如下，配置主机的host文件便于测试

[root@localhost ~]# vim /etc/hosts[root@localhost ~]# cat /etc/hosts127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4::1         localhost localhost.localdomain localhost6 localhost6.localdomain6192.168.2.151 www.test151.com192.168.2.152 www.test152.com192.168.2.153 www.test153.com

可以模拟实现DNS轮询的情况。

附：设置完hosts文件后一定要记得执行以下命令使其生效

1、windows下cmd进入命令行

C:\Users\1234>ipconfig /flushdnsWindows IP 配置已成功刷新 DNS 解析缓存。

1.3 建立虚拟主机存放网页的根目录，并创建首页文件index.html

[root@localhost /]# mkdir -p /data/www[root@localhost /]# cd /data/www[root@localhost www]# mkdir 151[root@localhost www]# mkdir 152[root@localhost www]# mkdir 153[root@localhost www]# echo "192.168.2.151" > 151/index.html[root@localhost www]# echo "192.168.2.152" > 152/index.html[root@localhost www]# echo "192.168.2.153" > 153/index.html[root@localhost www]# ls151  152  153

1.4 修改nginx.conf，将虚拟主机配置文件包含进主文件

[root@localhost /]# cd /usr/local/nginx/conf/[root@localhost conf]# lsfastcgi.conf          fastcgi_params          koi-utf  mime.types          nginx.conf          scgi_params          uwsgi_params          win-utffastcgi.conf.default  fastcgi_params.default  koi-win  mime.types.default  nginx.conf.default  scgi_params.default  uwsgi_params.default[root@localhost conf]# vim nginx.conf

在nginx.conf文件末尾加入以下配置

# 在http段中找到以下内容并删除每行前面的“#”    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '                      '$status $body_bytes_sent "$http_referer" '                      '"$http_user_agent" "$http_x_forwarded_for"';# 配置文件结尾的最后一个“}”之前加入以下语句，如下所示include vhost/*.conf;}

1.5 编辑每个IP的配置文件（每个虚拟主机的配置文件）

[root@localhost conf]# mkdir -p vhost[root@localhost conf]# cd vhost/[root@localhost vhost]# cat www.test151.conf    server {        listen       192.168.2.151:80;        # 配置成实际的域名，每个虚拟主机的配置文件域名都相同        #server_name  www.test.com;        access_log   /data/logs/www.test151.com.log main;        error_log    /data/logs/www.test151.com.error.log;        location / {            root   /data/www/151;            index  index.html index.htm;        }    }[root@localhost vhost]# cat www.test152.conf    server {        listen       192.168.2.152:80;        # 配置成实际的域名，每个虚拟主机的配置文件域名都相同        #server_name  www.test.com;        access_log   /data/logs/www.test152.com.log main;        error_log    /data/logs/www.test152.com.error.log;        location / {            root   /data/www/152;            index  index.html index.htm;        }    }[root@localhost vhost]# cat www.test153.conf    server {        listen       192.168.2.153:80;        # 配置成实际的域名，每个虚拟主机的配置文件域名都相同        #server_name  www.test.com;        access_log   /data/logs/www.test153.com.log main;        error_log    /data/logs/www.test153.com.error.log;        location / {            root   /data/www/153;            index  index.html index.htm;        }    }

1.6 创建日志文件，否则无法启动nginx

[root@localhost /]# mkdir -p /data/logs[root@localhost /]# touch /data/logs/www.test151.com.log[root@localhost /]# touch /data/logs/www.test151.com.error.log[root@localhost /]# touch /data/logs/www.test152.com.log[root@localhost /]# touch /data/logs/www.test152.com.error.log[root@localhost /]# touch /data/logs/www.test153.com.log[root@localhost /]# touch /data/logs/www.test153.com.error.log[root@localhost /]# ls /data/logs/www.test151.com.error.log  www.test152.com.error.log  www.test153.com.error.logwww.test151.com.log        www.test152.com.log        www.test153.com.log

1.7 先测试配置文件然后再启动nginx

[root@localhost /]# cd /usr/local/nginx/sbin/[root@localhost sbin]# ./nginx -tnginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is oknginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful# 启动nginx[root@localhost sbin]# ./nginx

1.8 测试文件

[root@localhost sbin]# curl www.test151.com192.168.2.151[root@localhost sbin]# curl www.test152.com192.168.2.152[root@localhost sbin]# curl www.test153.com192.168.2.153

附：配置过程中出现的问题

1、测试配置文件时出现的问题

[root@localhost sbin]# ./nginx -tnginx: [emerg] unexpected "}" in /usr/local/nginx/conf/nginx.conf:122nginx: configuration file /usr/local/nginx/conf/nginx.conf test failed

决解方法：下面语句忘记加分号

include vhost/*.conf;

2、使用 curl www.test*.com 测试时总是访问到相同的结果

解决方法：不要将IP地址写在 server_name 后面， server_name 后面只能添加域名。