>> >> Is it possible (and how) to prevent users to log in more than once with >> >> the same username on the console through telnet? >> > >> > Do you want to limit logins on the console or logins via telnet? >> > >> > You shouldn't be using, much less mentioning, telnet for logins anyway. >> > Only use ssh. >> >> That's not the issue here, I agree, > > How you limit logins on the console and how you limit remote logins can > be handled in different ways. Limiting console logins is pretty useless > in my opinion, because if someone has physical access, console login > limits are the least of your worries.
Have you ever thought my question had nothing to do with security but the application that is running for the users? Instead of mentioning to use ssh it can be wise to ask why soneone wants to use telnet. >> but there are situations one could >> only use telnet... > > Perhaps if the machine you were trying to login to exists in 1988 and > you had a time machine, then telnet would be necessary, I suppose. > > In situations where one could only use telnet, one should use telnet to > login and then immediately install sshd and remove telnetd. No, no, no there are many situations one has to use telnet, only perhaps not in your world. In this case it are servers controlled by consoles attached to industrial machines and trucks of a big plant. Security is managed on a other level and simply changing dozens of consoles on machines that cost $100K+ is not really an option. So, can I prevent users from loggin in twice with the same username and how? -- Ariën Huisken _______________________________________________ tsl-discuss mailing list [email protected] http://lists.trustix.org/mailman/listinfo/tsl-discuss
