Re: telnet break-in

[Ossama Othman <othman@astrosun.tn.cornell.edu>]

You might want to consider disabling all incoming connections if you are
never going to login to your machine via remote.

As George suggested, you can edit your host.{allow,deny} files or edit
/etc/inetd.conf and comment out things like:

	telnet
	ftp
	login
	exec
	finger
	shell
	...you get the idea...

and then restart the inetd daemon with the HUP signal (kill -HUP pid_of
_inetd ... i.e. fill in the process ID of inetd).  All of your outgoing
telnets, ftps, etc. would still work just fine but incoming telnets, for
example, would be completely disabled.

-Ossama