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Nginx虚拟主机配置

2015-06-20 18:45 856 查看
利用虚拟主机技术,可以把一台真正的主机分成许多“虚拟”的主机,每一台虚拟主机都具有独立的域名和IP地址,具有完整的Internet服务器(www,FTP,email)功能。虚拟主机之间完全独立,在外界看来,每一台虚拟主机和一台独立的主机完全一样。效果一样但费用却大不一样了。由于多台虚拟主机共享一台真实主机的资源,每个虚拟主机用户承受的硬件费用、网络维护费用、通信线路的费用均大幅度降低,Internet真正成为人人用得起的网络!

虚拟主机共分为三种:基于IP的虚拟主机,基于端口的虚拟主机和基于名称的虚拟主机。前两种由于受到成本和客户使用习惯的限制,相对使用的没有基于名称的虚拟主机多,以下我们介绍一下三种虚拟主机的配置。

1. 基于名称的虚拟主机
首先,创建虚拟主机的目录,
[root@master nginx]# mkdir -p /usr/local/nginx/virtual_sites/www.example.com
[root@master nginx]# cd /usr/local/nginx/virtual_sites/
[root@master www.example.com]# echo "Welcome to  > index.html
修改nginx的配置文件,添加server字段,

[root@master nginx]# grep -B2 -A2 www.example.com conf/nginx.conf
server {
listen 80;
server_name   www.example.com;
root virtual_sites/www.example.com;
index  index.html index.htm;
}


之后,重启nginx服务,
[root@master nginx]# service nginx restart
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful
Stopping nginx:                                            [  OK  ]
Starting nginx:                                            [  OK  ]
[root@master nginx]#
客户端访问该虚拟主机,这里并没有配置DNS,使用了/etc/hosts作为域名解析,
[root@slave ~]# links www.example.com



2. 基于IP的虚拟主机
server {
listen 192.168.1.150:80;
root   virtual_sites/150.com;
index  index.html index.htm;
}
添加虚拟IP地址,并重启nginx,
[root@master nginx]# ifconfig eth1:0 192.168.1.150
[root@master nginx]# service nginx restart
使用netstat查看,nginx是否启动成功,
[root@master nginx]# netstat -antup
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address               Foreign Address             State       PID/Program name
tcp        0      0 192.168.1.151:8080          0.0.0.0:*                   LISTEN      1501/nginx
tcp        0      0 0.0.0.0:80                  0.0.0.0:*                   LISTEN      1501/nginx
tcp        0      0 0.0.0.0:22                  0.0.0.0:*                   LISTEN      801/sshd
tcp        0      0 127.0.0.1:25                0.0.0.0:*                   LISTEN      877/master
tcp        0      0 192.168.1.129:22            192.168.1.106:59326         ESTABLISHED 1191/sshd
tcp        0      0 :::22                       :::*                        LISTEN      801/sshd
tcp        0      0 ::1:25                      :::*                        LISTEN      877/master
udp        0      0 0.0.0.0:68                  0.0.0.0:*                               1007/dhclient
客户端来验证一把,
[root@slave ~]# links 192.168.1.150




3. 基于端口的虚拟主机
server {
listen 8080;
root   virtual_sites/151.com;
index  index.html index.htm;
}
配置起来很简单,配置完毕,重启nginx服务,
[root@master nginx]# service nginx restart
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful
Stopping nginx:                                            [  OK  ]
Starting nginx:
查看端口是否已监听8080,
[root@master nginx]# netstat -antup
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address               Foreign Address             State       PID/Program name
tcp        0      0 0.0.0.0:8080                0.0.0.0:*                   LISTEN      1526/nginx
tcp        0      0 0.0.0.0:80                  0.0.0.0:*                   LISTEN      1526/nginx
tcp        0      0 0.0.0.0:22                  0.0.0.0:*                   LISTEN      801/sshd
tcp        0      0 127.0.0.1:25                0.0.0.0:*                   LISTEN      877/master
tcp        0      0 192.168.1.129:22            192.168.1.106:59326         ESTABLISHED 1191/sshd
tcp        0      0 :::22                       :::*                        LISTEN      801/sshd
tcp        0      0 ::1:25                      :::*                        LISTEN      877/master
udp        0      0 0.0.0.0:68                  0.0.0.0:*                               1007/dhclient
客户端进行访问验证,
[root@slave ~]# links 192.168.1.151:8080



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