我们经常上网，仔细的人会发现一个现象。当在浏览器的地址栏中输入 baidu.com 或 www.baidu.com 最后的连接都是www.baidu.com，这是 因为 baidu.com 跳转到 www.baidu.com 连接。那么我们来看看Nginx中是如何实现这一过程的呢。

  • 修改 ww.conf 文件，如下： 
    [root@NFS nginx]# vim conf/extra/www.conf 

    server {
        listen       80;
        server_name  daydayup.com;                 
        rewrite ^/(.*) http://www.daydayup.com/$1 permanent;
    }
    server {
        listen       80;
        server_name  www.daydayup.com;
        root    html/www;
        index   index.html index.htm;
    }
    另一种配置方式： 
        server {
        listen       80;
        server_name  www.daydayup.com daydayup.com;
        if ($host ~* "^daydayup.com$") {
           rewrite ^/(.*) http://www.daydayup.com/$1 permanent;
        }
        root   html/bbs;
        index  index.html index.htm;
    }

     
  • 重启Nginx服务。 
    [root@NFS nginx]# sbin/nginx -s reload
  • 测试

    无论在浏览器中输入 daydayup.com 还是 www.daydayup.com ，最终地址栏中显示的是 www.daydayup.com 。
     
  • 用curl命令测试。
    1.先在/etc/hosts 文件中作域名 daydayup.com 的解析。 
    [root@NFS nginx]# vim /etc/hosts

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
172.16.1.31     NFS www.daydayup.com bbs.daydayup.com blog.daydayup.com daydayup.com


    2.curl daydayup.com 测试。

    [root@NFS nginx]# curl daydayup.com
<html>
<head><title>301 Moved Permanently</title></head>
<body bgcolor="white">
<center><h1>301 Moved Permanently</h1></center>
<hr><center>nginx/1.12.2</center>
</body>
</html>
[root@NFS nginx]#

    # curl daydayup.com ：访问daydayup.com ，但是daydayup.com跳转到其他地址就不再继续访问，此时如果想要继续深入追踪，则采用 curl -L daydayup.com。

    [root@NFS nginx]# curl -L daydayup.com              #跟踪转发地址，深入访问到最后一层
10.0.0.31 www.daydayup.com
[root@NFS nginx]# 
[root@NFS nginx]# curl -Lv daydayup.com             #显示中途转发的详细信息
* About to connect() to daydayup.com port 80 (#0)
*   Trying 172.16.1.31... connected
* Connected to daydayup.com (172.16.1.31) port 80 (#0)
> GET / HTTP/1.1
> User-Agent: curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.21 Basic ECC zlib/1.2.3 libidn/1.18 libssh2/1.4.2
> Host: daydayup.com
> Accept: */*
> 
< HTTP/1.1 301 Moved Permanently
< Server: nginx/1.12.2
< Date: Sun, 01 Dec 2019 12:48:19 GMT
< Content-Type: text/html
< Content-Length: 185
< Connection: keep-alive
< Location: http://www.daydayup.com/
< 
* Ignoring the response-body
* Connection #0 to host daydayup.com left intact
* Issue another request to this URL: 'http://www.daydayup.com/'
* About to connect() to www.daydayup.com port 80 (#1)
*   Trying 172.16.1.31... connected
* Connected to www.daydayup.com (172.16.1.31) port 80 (#1)
> GET / HTTP/1.1
> User-Agent: curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.21 Basic ECC zlib/1.2.3 libidn/1.18 libssh2/1.4.2
> Host: www.daydayup.com
> Accept: */*
> 
< HTTP/1.1 200 OK
< Server: nginx/1.12.2
< Date: Sun, 01 Dec 2019 12:48:19 GMT
< Content-Type: text/html
< Content-Length: 27
< Last-Modified: Sat, 30 Nov 2019 07:24:15 GMT
< Connection: keep-alive
< ETag: "5de2191f-1b"
< Accept-Ranges: bytes
< 
10.0.0.31 www.daydayup.com
* Connection #1 to host www.daydayup.com left intact
* Closing connection #0
* Closing connection #1
[root@NFS nginx]#



     

最后修改于 2019-12-04 15:06:24
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