On 2/22/07, Paul Klapperich <[EMAIL PROTECTED]> wrote:
You could setup pubkey authentication on your home ssh server. Then you could add a script to the device such that when it connects it runs something like: ssh -n -R2022:localhost:22
Good idea, as your ssh is an outbound connection the local firewall may accept it. But your command is incomplete, we must have something like: ssh -n -R2022:localhost:22 [EMAIL PROTECTED] sleep 3600 and you must be sure that the public key of the nokia user is accepted by [EMAIL PROTECTED] It would be helpful to replace sleep by a script that warn you, then sleep
Then on your local computer you could "ssh [EMAIL PROTECTED] -p2022" to connect into your device whenever it's on the internet, regardless of where it's connected from. You could manually erase the data, something like: for i in /home/user /media/mmc1 /media/mmc2; do rm -rf $i done
We can do like that but it might be frustrating when you miss the connection, or when it is interrupted before you finish, ... I think this can only be an add-on to the second option.
Another trick I've used--actually to update computer labs--is to keep a script on your server, then have the device use scp to copy that script from the server and run it whenever it connects. In my case, the script was simple. In your case the script would do nothing. To nuke your nokia, replace it with one that erases stuff. This will get it the next time it connects and wouldn't require you find know when the device connects.
That's fine we use the same "download at boot and execute" to keep our clients up-to-date. We just need to find how the script can be triggered when the tablet connect to internet (must not be difficult, but I have not looked upon the tablet networking). Your emergency script can of course erase sensible data but also add a startup service in /etc/init.d that shutdown the tablet if some special action (say use some key) is not triggered. Making the use of the tablet impossible except for you without reflashing. Better than scp you can download the script from an httpd server using netcat, because outbound http connection on port 80 are always open on any access point your tablet may use.
Other options would include writing a lot file to your home machine with the IP connecting from. This could be used to track your device so you might be able help police recover it. Or you could delete important system files and your personal data to make the device worthless without a reflash.
Too complicated just mail a message when you connect "I'm connected from ip n° xxx.xxx.xxx.xxx gateway xxx.xxx.xxx.xxx", if you have traceroute you can even traceroute to a known point to help locate the device. but I suppose it's of no use, some people complain that the police is not even looking for their stolen child, what do you expect for your tablet! At this point I'm wondering if it is not an otion to put on our tablet (at least when we are on the go), this "shut down if not authenticated" service. Of course the tablet policy forbid to authenticate as user before loging in, because the second part of the boot process is done as user. But why not put a simple query that the user must answer during the first 5mn of connection? A startup script may popup a window and shutdown the device if not answered. If you keep a ssh access to user or root you have some emergency solution if ever you forget the password. Marc _______________________________________________ maemo-developers mailing list [email protected] https://maemo.org/mailman/listinfo/maemo-developers
