catching criminal LAN IP

[kab_184]

Hi

I need somehelp as i cannot get the right PHP code or command to solve this matter. There is a person who is sending heavily abusive message to a friend of mine using my website. The information that i so far has recorded gives me

1- City Proxy
2- Local College Proxy.

Now there are so many computers in that college and so many people use it sametimes that it is hard to get which one sent the message. If i can get/record SOME Unique details of that computer Using PHP (or what ever u have in mind) he can be caught in Real Time while he is sitting on that PC.
So what can be recorded in PHP using which command?

1- Name of the Computer that person used/using?
2- LAN IP alloted to that computer

Any one Knows?

[missing-score]

Please do not post your question more than once in the future.

As for getting a LAN IP, you cannot do this if the request is going out side of a LAN (unless each computer has its own unique outbound IP). You can get a request IP address using $_SERVER['REMOTE_ADDR'];

I think your best bet would be to maybe either:

Require a login username + e-mail to post messages. You could also probably set up some kind of amazing scheme to catch this person at work if you know they are localized in the college and you have the support of the college network admins

[kab_184]

Thanks

Sorry about the multiple posts. the button got stuck . I hope admin will remove/lock extra posts ]

What about the MAC address ? Is it Unique to each PC? CAn it be recorded too?

[missing-score]

Sorry about the multiple posts. the button got stuck . I hope admin will remove/lock extra posts ]

Already done... i guessed it was something like that as its not common for a member with 100+ posts to make a triple post in the same forum :p.

What about the MAC address ? Is it Unique to each PC? CAn it be recorded too?

Where exactly are you running this web app from? Is it on the colleges local network or from a remote server?

[kab_184]

I have my own website. hosted in US. It Unix/MySQL/Apache based
I have whole webiste in combonation of PHP and HTML. I can get close to College each time. i have set notification of that College visitors too, so i am aware when someone approaches the website from that college.

But in court of law one has to Pinpoint which PC was used to access the website and message was sent from that PC by that person. FOr that i need some hard data . Anything which can be told to College admin via phone so he can get hold of the Identity of that person which he/she is sitting on that pc.

[missing-score]

As I said in my first post you should try to implement some kind of e-mail signup/verification procedure. Even if you dont catch this person, you could at least make him stop what he's doing.

MAC addresses should only be retrievable if you are local to the person (eg: Bluetooth often uses MAC addresses, and you have to be 10 metres away).

You could ask the colleges if its possible to monitor outgoing POST data?

[kab_184]

ermm ya i think if the college admin can set and alert so that when someone accesses my website then that PC LAN IP is shown to him and he can check back sametime who's sitting over it.

SIgnup isnt feasible choice. I can stop him by blocking College proxy. He is uptil the only user from that college on my site. But to catch i need him coming back.. thanks for the help

and i hope Admin can set Submit button to fade out once its clicked so multiple posts accident doesnt happen :)

[missing-score]

If the college admin can monitor outbound request times and you can match up data on your server then you together may be able to pinpoint the person.

[kab_184]

Yes.. i think there are LOG files option in College proxy. outbound request if he can keep an eye on.. but Alert is the best if set on outbound requests... so he is warned sametime that someone requested my site.. so he can check LAN ip which requested while my site page loaded..