PHP disables Image leeching

1. assume that the host domain name of the link image is www. test. com2, fixed httpd. confSetEnvIfNoCaseReferer "^ http://www.test.com/" local_ref = 1 FilesMatch ". (gif | jpg) "OrderAllow, DenyAllowfromenv =

1. assume that the host domain name of the link image is www.test.com.

2. modify httpd. conf.

SetEnvIfNoCase Referer '^ http://www.test.com/' local_ref = 1

Order Allow, Deny
Allow from env = local_ref

 

This simple usage not only solves the problem of image leeching titles, but also prevents any file leeching download titles.

When the above method is used to link images from unspecified hosts, the images cannot be displayed. if you look forward to displaying a picture of "anti-leeching", we can use mod_rewrite.

Add the -- enable-rewrite parameter to load the mod_rewrite module when installing apache.

Assume that the image of the anti-Leech feature is abc.gif. we can configure it in httpd. conf as follows:

RewriteEngine on
RewriteCond % {HTTP_REFERER }! ^ $
RewriteCond % {HTTP_REFERER }! ^ Http: // (www \.)? Test.com/. * $ [NC]
RewriteRule \. (gif | jpg) $ http://www.test.com/abc.gif [R, L]
 

When the host image is leeched, only the "leeching prohibited" image of abc.gif is displayed!