Well, proftpd does not actually require the user to have a shell. http://proftpd.linux.co.uk/localsite/Userguide/linked/config_ref_RequireValidShell.html
Just set RequireValidShell to off and that's it. Joel A. Chornik ELSERVER.COM Buenos Aires, Argentina. ----- Original Message ----- From: "Tony Kava" <[EMAIL PROTECTED]> To: "'chris Verhagen'" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Thursday, August 07, 2003 6:53 PM Subject: RE: SSH mail server experiments > By default I believe most FTP daemons will not allow a user to login without > a valid shell. A valid shell is a shell that is listed in the file > /etc/shells . If you add their shell to /etc/shells it may work, however I > hope that this is a convenience move rather than a security move because if > they can access any application by SSH (pine, whatever) there will almost > certainly be a way they can exploit it to gain shell access to the system. > Simply changing a user's shell is not a sufficient security measure. > > -- > Tony Kava > Network Administrator > Pottawattamie County, Iowa > > > > -----Original Message----- > From: chris Verhagen [mailto:[EMAIL PROTECTED] > Sent: Thursday, 07 August, 2003 12:20 > To: [EMAIL PROTECTED] > Subject: SSH mail server experiments > > > A week ago I started a webhosting service for subdomains at > http://crystal-ninja.cjb.net . Now, ofcourse, people need to ftp into their > public_html directory in their home dirs. I'm using proFTPd for that. > But now for the problem: I just got the idea to make a funny mail service. > People should be able to just SSH into my server and instead of a shell, > /bin/mail is loaded and they can do their thing. > I've encountered problems with that... when experimenting i noticed it > worked fine to just change /bin/bash in the passwd file to /bin/mail, but > when i do this, people cant log into the FTP server anymore... > Is there an easy solution for this problem? Remember, i only want them to be > > able to use /bin/mail! No shell! > > _________________________________________________________________ > The new MSN 8: smart spam protection and 2 months FREE* > http://join.msn.com/?page=features/junkmail > > > -------------------------------------------------------------------------- - > -------------------------------------------------------------------------- -- > > -------------------------------------------------------------------------- - > -------------------------------------------------------------------------- -- > > --------------------------------------------------------------------------- ----------------------------------------------------------------------------
