On Thu, 2 Oct 1997, Alex Yukhimets wrote: > > > > how can i do to avoid that an user can make telnet to may host? (but I > > > > must can do ftp,irc,http,etc)...I only want prohibit telnet. > > > > > > Change shell for the users you want to forbid telnetting to /bin/true > > > and add the line "/bin/true" into /etc/shells file. > > > > > > > true?....what's true? and simple word? > > > > sorry, but i don't understand you well. > > Well, if you noticed, you've got a /bin/true binary the whole purporse > of which is to return "true" (zero exit code). If you specify this > program as a user shell, the above user won't be able to gain shell > access to his account, but will be able to ftp to it.
You can use /bin/true, but I prefer /bin/false. If you use /bin/false, the user will get an error message, not just a 'Connection closed by foreign host' message. BTW: /bin/true and /bin/false are shell scripts on my system (Debian Linux). Remco -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word "unsubscribe" to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .