Can I send a message to the admin of an unsecured Access Point?

2

I noticed that someone in my neighborhood has been really generous and is sharing the WLAN without any security. So, I could easily connect to the access point and browse the internet.

Is it possible to send a message to the administrator of the access point?

Maybe they aren't aware of it and whoever is in the range could connect to the WiFi.

www.sapnaedu.in

Posted 2011-08-16T21:15:32.563

Reputation: 289

Answers

2

When you are connected to the Internet through the open access point, you can visit a site such as whatismyip.com to get the IP address of the Internet connection and then do a reverse lookup on this to identify the name associated with it - this will probably identify the ISP providing the internet service and maybe also the actual account name if the service user has a fixed IP address. Sometimes the account name will equate to the account holder's email address (or at least their mailbox address at their ISP) so you can contact them OR you could contact the ISP and ask them to get in touch with their customer by providing the IP address/reverse lookup address and the time at which you connected.

You may also be able to use arp to identify a printer on the user's network and print them a message.

Linker3000

Posted 2011-08-16T21:15:32.563

Reputation: 25 670

Using the printer would be a bit creepy, but really entertaining. It may be illegal though... – sound2man – 2011-08-17T20:50:25.923

1

Take a notebook computer and walk around the neighborhood - see which house is emitting the signal by its strength as you get close to each house. You'll find the signal is strongest by the house where the base is located.

yosh m

Posted 2011-08-16T21:15:32.563

Reputation: 2 048

A useful tool for this is netstumbler. It won't exactly give you a pointing arrow, but it will give you a clear readout on the signal strength. Even audio cues if you want! I love the tool.

– apathos – 2011-08-17T02:13:58.470

0

Depending on the signal strength, you might be able to narrow it down to the homes immediately next to yours. You could then maybe leave a note on the doors.

Also, if you find shared folders on your network, they may belong to this person and if they aren't password protected, you may find a name in there. Although I'm not sure how legal this would be.

Vahe

Posted 2011-08-16T21:15:32.563

Reputation: 216

Thanks, talking about legality, as much as I wish to notify the admin, I donot want to sniff around someone's network and get into a trouble...

Signal Strength wise I am not sure, how I can somehow localize or triangulate the persons geographic location..

I think, having a look at the shared folders is something which I prefer to do..

Any other approaches apart from the one mentioned above ? – www.sapnaedu.in – 2011-08-16T22:22:38.897

Again, this is likely illegal, but you could leave a text file in the user's Desktop folder explaining the situation. Unfortunately, the cinic in me says "no good deed goes unpunished" in this case. You'll get in trouble and the stealthy hackers will go unnoticed. – Hand-E-Food – 2011-08-16T23:16:14.740

I donot see any shared folders, I just see Windows Network nothing else.. – www.sapnaedu.in – 2011-08-17T11:42:34.270

0

You are better off doing nothing. In many areas it is illegal to connect and use an open access point without permission.

Keltari

Posted 2011-08-16T21:15:32.563

Reputation: 57 019

I cannot stay silent, I would rather try to find somehow and inform the Admin. If not me, Someone else might piggyback on the free internet connection that is being offered in my neighborhood. – www.sapnaedu.in – 2011-08-17T11:44:33.563