On Wednesday 11 Jun 2003 2:20 am, rikona wrote: > Hello, > > Just had another crash, with a full screen app. Tried all the > emergency recovery techniques mentioned earlier, but nothing seemed to > restore a console or screen I could work with. Did a reboot. :-( > > For several of the emergency things, it seemed as though linux was > still working (I could move the mouse), and I just couldn't get to a > useful spot. Would it be a good idea to set up a 'back door' from > another computer on the local net, and then use that to access the > 'stuck' machine? How would be the most secure way to set this up? Can > I restrict the login to just one or more of the local net IP > addresses? Is it unsafe to use telnet, even though the local net is > 'safe', or should I use ssh? Is this a good idea at all. :-)
Yes certainly network access is a great way to get out of lockups (I assume you know about Ctl+Alt+Backspace and Ctl+Alt+F1 already) ssh is loads more secure than telnet (which should be avoided) Just 'urpmi openssh-server' and it will be working. By default anyone who knows your username/password can get in. You can use your firewall to stop ssh access from the Internet or ro restrict access to specific IP addresses (described in the documentations at www.shorewall.net) If you want ssh to be super secure you can restrict access to users whose public keys you hold. This is described here http://www.mandrakesecure.net/en/docs/openssh.php derek -- ---------------------------------- www.jennings.homelinux.net
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