Prevent hotlinking

[Gabriel Ramuglia]

Flash players may or may not send referrers. It seems to vary based on
the web browser used. Documentation for flash would lead me to believe
that it never sends referrers, but practical experience shows that
this is not true, it does sometimes send headers, and sometimes not,
in a mostly unpredictable way.

On Sun, Apr 12, 2009 at 11:44 AM, Michael Shadle <mike503 at gmail.com> wrote:
> And video embedding is infamous for not sending info. At least windows media
> player type embedding. Not sure if flash players are better.
>
> On Apr 12, 2009, at 11:35 AM, Gabriel Ramuglia <gabe at vtunnel.com> wrote:
>
>> Your browser will almost always send referrers. As mentioned,
>> sometimes a security suite will block referrers. Sometimes flash won't
>> send referrers when it makes requests (sometimes it will). You just
>> want to also allow blank referrers in addition to the "correct"
>> referrers.
>>
>> On Sun, Apr 12, 2009 at 10:41 AM, Max <maxbear at gmail.com> wrote:
>>>
>>> Hello,
>>>
>>> Thanks. I tried that. But it's still not working. I am using wordpress.
>>> Don't know what referrer header wordpress send.
>>>
>>> Max
>>>
>>> On Mon, Apr 13, 2009 at 12:40 AM, Michael Shadle <mike503 at gmail.com>
>>> wrote:
>>>>
>>>> Try
>>>>
>>>> "valid_referers none blocked *.etc.com etc"
>>>>
>>>> perhaps you're not sending a referrer header. Some "internet security
>>>> suites" do that for "privacy" and I hate them. or malfunctioning
>>>> browsers or some browsers include that option now.
>>>>
>>>> that's the only thing I see wrong there.
>>>>
>>>> On Sun, Apr 12, 2009 at 8:45 AM, Max <maxbear at gmail.com> wrote:
>>>>>
>>>>> Hello all,
>>>>>
>>>>> I tried to use the following code to prevent hotlinking. But it blockes
>>>>> myself as well, anyone got any idea?
>>>>>
>>>>> location ~* (\.jpg|\.png|\.css)$ {
>>>>>    valid_referers blocked domain.com *.domain.com;
>>>>> if ($invalid_referer) {
>>>>> return 404;
>>>>> }
>>>>> }
>>>>>
>>>>> Thanks.
>>>>>
>>>>> Max
>>>>>
>>>>>
>>>>
>>>
>>>
>>
>
>