Re: Re: disable referer ? (was: Framed & Linked Content)
| From: | Per Jessen | Date: | Thu, 31 Jan 2008 19:24:06 +0000 |
| Subject: | Re: Re: disable referer ? (was: Framed & Linked Content) | ||
| References: | 1 2 3 4 5 6 7 8 9 10 11 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-268485@lists.php.net to get a copy of this message | ||
Richard Lynch wrote:
>>> It CANNOT be tied to the IP address, because most users' IP
>>> addresses are not static.
>>
>> I think it is for the duration of the session. Mine certainly is.
>
> Yours might be.
> AOL users are *NOT*.
> In peak periods, an AOL users' IP address with change with every HTTP
> request.
Surely you are joking?? Don't they use DHCP for dishing out addresses?
I guess AOL users just have to do without https during peak hours :-)
> Further, large corporate users will ALL appear as a single IP address..
Yes, that's assuming they're using NAT - which many small and large
entities will be, I agree. In such cases, if the session id _is_
somehow tied to the IP-address, any attempt to hijack the session from
outside the NAT'ed network will fail.
>> Regardless, I did some googling and read a bit about session
>> hijacking and such. I still don't see much of a serious problem.
>> When Firefox switches off REFERER by default, we can talk again.
>
> Suppose only 0.1% of the Internet users have REFERER off.
>
> You say "That's not much. 0.1%"
>
> Now suppose there are a billion people who use the Internet.
>
> What is 0.1% of a billion?
>
> Do the math.
10million. But what I said was that _maybe_ 0.00X% have REFERER
switched off - and 0.001% of 1billion is 10.000 people. I can live
with that.
> If you have even a few thousand visitors, you are likely getting at
> least a few that have no REFERER...
Like I said, I can live with that. If people are that paranoid, they
shouldn't be on the internet at all, IMHO.
/Per Jessen, Zürich