Logical1

How can one find out if there are links from other site's to one's site and get their IP address to stop them?
I did some search and apparetnly this is called referer. But it is not clear that the IP is the visitor or the site?
I mean:
Let's say web site www.annoyingjunkads---.com has a link to my page at www.mysite---.com/list.php

I Know I can get the IP of the visitors to that page easily. But that would be the IP of visitor not the site.

Is there a way to get the IP of the site (in this case www.annoyingjunkads---.com) as visitors from that site click ont the link and comes to list.php?
Thanks in advance.
L1

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mackenga

The IP of their site is reasonably easily found and is unlikely to change; just do:

nslookup www.annoyingjunkads---.com

at the command prompt (Windows or Linux, and maybe other platforms). You should get the server IP; you can then look out for this. It's not a perfect solution because virtual hosts mean you might block links from other sites too.

Also, the HTTP referer header is not reliable; a lot of browsers won't send it for privacy reasons. None of this really solves the essential problem - anyone can create a link anywhere they like because you don't really have control of that link. What you're trying to do is block users who try to follow that link, which seems a shame because they're just innocent bystanders after all.

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Logical1

Thanks for the answer but let me clarify a few things my questions was not very clear:
I gave the annoyingjunads---.com as an example. I would not even know who is linking so I can not manually check their Ip.
The issue is that I want to make a logo and send it to some member web sites (let's say 40 web sites in my area) the logo would signify that they are memebr of something and if their visitors click on the logo they are sent to a PHP page where some information or severices are provided. This part is done.
What has to be done now is that I do not want other people to simply copy that logo and put it on their own web sites and establish a link. I thought one way was to check the IP of whoever comes to that page with the domain name of memeber site. If it was not the same deny them the free service.
If you can suggest any solution to this beer/coffee/tea is on me.

L1

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Logical1

That many suggestions???

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lectricpharaoh

There's no simple solution to this. A link is just that, a pointer to a web resource. If you want to protect access to that resource, then what you're going to need to do is establish some kind of login/password protection on it. This means that it's no longer as simple for the user as clicking on a link, however; they'll need to acquire the username/password combination, probably through some kind of registration.

Something like you envision could be done using a combination of server-side scripting and web services (you provide some authentication service to the third-party sites, which allows the user access to the resource on your site), but it would take work. It would also take the cooperation of each and every third-party site that you want to have this logo/link.

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Wizard1988

This might help -> GOOGLE

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Logical1

Thank you guys I will follow your suggestions.

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