<?xml version="1.0" encoding="UTF-8"?>
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    <channel>
        <title>Preventing hotlinking at &amp;quot;http&amp;quot; level, not server by server..</title>
        <description> Hi. There are many code samples on the web for simple hotlinking. 

I have some questions on how to do this in a better way, and all my
trial code has not worked, so hope some Nginx guru here can help. 

Here's what I am looking for: 

1. Firstly, I would like the blocking to happen at a server-wide level.
Nginx is on a dedicated server, and there are many &amp;quot;server&amp;quot; vhost tags
in a folder. I prefer not to have to write the blocking code for every
server individually. Is this possible at an &amp;quot;http&amp;quot; level? What's the
code for that. 

2. Secondly, I have about 35 domains and many subdomains. I don't want
them to be in one long line. But all my &amp;quot;vhost&amp;quot; server tags are inside a
directory. Can I somehow specify Nginx to allow all those domains whose
server definitions are in a folder? (/etc/nginx/vhosts) 

3. Will the &amp;quot;IF&amp;quot; condition slow down my Nginx? I remember reading that
Nginx does not like IF conditions. 

4. I want to allow some additional domains like Google and Facebook and
Pinterest. What's a good way to include this in the allowable list. 

5. Finally, if I do have to include this directive in each &amp;quot;server&amp;quot;
block for each of my domains, can I at least bundle the commands for
these type of files as such: 

`------
    location ~* \.(png|gif|jpg|jpeg|swf|ico|)$ {
      expires 7d;
      try_files $uri @backend;
    
      valid_referers none blocked site.com mysite.com ~\.google\.
~\.yahoo\. ~\.bing\. ~\.facebook\. ~\.fbcdn\.;
      if ($invalid_referer) {
        return 403;
      }
    
    }
------`


Thanks!

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,226491,226491#msg-226491

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        <link>http://www.serverphorums.com/read.php?5,497243,497243#msg-497243</link>
        <lastBuildDate>Sun, 26 May 2013 03:45:31 +0200</lastBuildDate>
        <generator>Phorum 5.2.18</generator>
        <item>
            <guid>http://www.serverphorums.com/read.php?5,497243,503522#msg-503522</guid>
            <title>Re: Preventing hotlinking at &quot;http&quot; level, not server by server..</title>
            <link>http://www.serverphorums.com/read.php?5,497243,503522#msg-503522</link>
            <description><![CDATA[ Any ideas at all? <br />
<br />
Thanks.<br />
<br />
Posted at Nginx Forum: <a href="http://forum.nginx.org/read.php?2,226491,226858#msg-226858" target="_blank"  rel="nofollow">http://forum.nginx.org/read.php?2,226491,226858#msg-226858</a><br />
<br />
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<a href="mailto:&#110;&#103;&#105;&#110;&#120;&#64;&#110;&#103;&#105;&#110;&#120;&#46;&#111;&#114;&#103;">&#110;&#103;&#105;&#110;&#120;&#64;&#110;&#103;&#105;&#110;&#120;&#46;&#111;&#114;&#103;</a><br />
<a href="http://mailman.nginx.org/mailman/listinfo/nginx" target="_blank"  rel="nofollow">http://mailman.nginx.org/mailman/listinfo/nginx</a>]]></description>
            <dc:creator>pk899</dc:creator>
            <category>Nginx</category>
            <pubDate>Sat, 26 May 2012 19:50:01 +0200</pubDate>
        </item>
        <item>
            <guid>http://www.serverphorums.com/read.php?5,497243,497243#msg-497243</guid>
            <title>Preventing hotlinking at &quot;http&quot; level, not server by server..</title>
            <link>http://www.serverphorums.com/read.php?5,497243,497243#msg-497243</link>
            <description><![CDATA[ Hi. There are many code samples on the web for simple hotlinking. <br />
<br />
I have some questions on how to do this in a better way, and all my<br />
trial code has not worked, so hope some Nginx guru here can help. <br />
<br />
Here's what I am looking for: <br />
<br />
1. Firstly, I would like the blocking to happen at a server-wide level.<br />
Nginx is on a dedicated server, and there are many &quot;server&quot; vhost tags<br />
in a folder. I prefer not to have to write the blocking code for every<br />
server individually. Is this possible at an &quot;http&quot; level? What's the<br />
code for that. <br />
<br />
2. Secondly, I have about 35 domains and many subdomains. I don't want<br />
them to be in one long line. But all my &quot;vhost&quot; server tags are inside a<br />
directory. Can I somehow specify Nginx to allow all those domains whose<br />
server definitions are in a folder? (/etc/nginx/vhosts) <br />
<br />
3. Will the &quot;IF&quot; condition slow down my Nginx? I remember reading that<br />
Nginx does not like IF conditions. <br />
<br />
4. I want to allow some additional domains like Google and Facebook and<br />
Pinterest. What's a good way to include this in the allowable list. <br />
<br />
5. Finally, if I do have to include this directive in each &quot;server&quot;<br />
block for each of my domains, can I at least bundle the commands for<br />
these type of files as such: <br />
<br />
`------<br />
    location ~* \.(png|gif|jpg|jpeg|swf|ico|)$ {<br />
      expires 7d;<br />
      try_files $uri @backend;<br />
    <br />
      valid_referers none blocked site.com mysite.com ~\.google\.<br />
~\.yahoo\. ~\.bing\. ~\.facebook\. ~\.fbcdn\.;<br />
      if ($invalid_referer) {<br />
        return 403;<br />
      }<br />
    <br />
    }<br />
------`<br />
<br />
<br />
Thanks!<br />
<br />
Posted at Nginx Forum: <a href="http://forum.nginx.org/read.php?2,226491,226491#msg-226491" target="_blank"  rel="nofollow">http://forum.nginx.org/read.php?2,226491,226491#msg-226491</a><br />
<br />
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<a href="http://mailman.nginx.org/mailman/listinfo/nginx" target="_blank"  rel="nofollow">http://mailman.nginx.org/mailman/listinfo/nginx</a>]]></description>
            <dc:creator>pk899</dc:creator>
            <category>Nginx</category>
            <pubDate>Wed, 16 May 2012 12:30:02 +0200</pubDate>
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