域名跳转总结
当我们变更网站域名,或者申请多个域名指向一个网站的时候,这个时候我们就会用到域名跳转(或者叫域名重定向redirect、域名转向)。
域名跳转试验
[root@chy ~]# vim /usr/local/apache2.4/conf/extra/httpd-vhosts.conf
<VirtualHost *:80>
DocumentRoot "/data/wwwroot/111.com"
ServerName www.111.com
ServerAlias www.exaple.com
#<Directory /data/wwwroot/111.com>
#<filesMatch 123.php>
#AllowOverride AuthConfig
#AuthName "111.com user auth"
#AuthType Basic
# AuthUserFile /data/.htpasswd
# require valid-user
# </FilesMatch>
#</Directory>
<IfModule mod_rewrite.c>
RewriteEngine on
RewriteCond %{HTTP_HOST} !^www.123.com$
RewriteRule ^/(.*)$ http://www.123.com/$1 [R=301,L]
</IfModule>
#ErrorLog "logs/dummy-host2.example.com-error_log"
#CustomLog "logs/dummy-host2.example.com-access_log" common
</VirtualHost>
(以上是配置,以下是具体的配置说明:
<IfModule mod_rewrite.c> //需要mod_rewrite模块支持
RewriteEngine on //打开rewrite功能
RewriteCond %{HTTP_HOST} !^www.111.com$ //定义rewrite的条件,主机名(域名)不是www.111.com满足条件
RewriteRule ^/(.*)$ http://www.111.com/$1 [R=301,L] //定义rewrite规则,当满足上面的条件时,这条规则才会执行,其中301是永久跳转,302是只跳转一次。L的意思是跳转一次后就结束
</IfModule>
[root@chy ~]# /usr/local/apache2.4/bin/apachectl -M |grep rewrite
(查看是否加载了模块)
[root@chy ~]# vi /usr/local/apache2.4/conf/httpd.conf
LoadModule rewrite_module modules/mod_rewrite.so
(在主配置文件里面找到rewrite_module模块将#号去掉,然后在查看是否有模块)
[root@chy ~]# curl -x127.0.0.1:80 222.com -I
HTTP/1.1 301 Moved Permanently
Date: Sun, 30 Jul 2017 23:17:17 GMT
Server: Apache/2.4.27 (Unix) PHP/7.1.6
Location: http://111.com/
Content-Type: text/html; charset=iso-8859-1
(测试域名跳转成功)
以上测试是在centos7系统下完成