Re: telnet

[Alex Yukhimets <aqy6633@acf5.nyu.edu>]

> > > 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.

Hope it's more clear now.

Alex Y.

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