<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Arial; font-size: 12pt; color: #000000'>Note it's actually spelled with caps: MAKEDEV. It is available in the OpenSuSE repository and is installed by default on my CentOS 6.2 and RHEL 5.2 boxes. <div><br></div><div>I don't know much about it, but if it really isn't available on your distro, and you don't want to include every /dev/* device in your /chroot/dev with your mount/bind solution, you might take a look at mknod . It's been a long time since I've had to use it, but I believe you can just use mknod to create the specific device files that you need in /chroot/dev/ (which you'd create yourself). You just need the type (block/character), and major/minor numbers, which you can get from ls -l /dev. </div><div><br></div><div>Sorry if this is wrong or outdated, but as I said, it's been a long time. It might be an avenue to explore, though. </div><div><br></div><div>Scott<br><br><hr id="zwchr"><div style="color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From: </b>"Ted W" <ted@techmachine.net><br><b>To: </b>"Atlanta Linux Enthusiasts" <ale@ale.org><br><b>Sent: </b>Monday, August 20, 2012 5:39:58 PM<br><b>Subject: </b>Re: [ale] Chrooting a user logged in over telnet<br><br><br>So, it looks like makedev is not available on the systems I'm working with. The server I'm configuring uses udev and after some digging I discovered that I was just missing one simple command, which makes complete sense in retrospect:<br><br> mount -o bind /dev /chroot/dev<br><br>Now, the next issue is with regards to setting a different chroot directory for each user that is logged in to the system. As far as I can tell, xinetd allows for a "server_args" line in the xinetd.conf files. I have the "server" line and "server_args" line setup as follows:<br> <br> server = /usr/bin/chroot<br> server_args = /chroot /usr/sbin/in.telnetd<br><br>So far as I can tell, this is telling xinetd to listen on port 23. On connection, execute /usr/bin/chroot with args /chroot and /usr/sbin/in.telnetd. What I would like to accomplish is something similar to the "ChrootDirectory" line in /etc/ssh/sshd_config which, on my system reads:<br> <br> ChrootDirectory %h<br><br>What I'm attempting to do now to accomplish this is a bit hackish but it's the first thing that popped into my head. Instead of launching "/usr/bin/chroot /chroot /usr/sbin/in.telnetd", xinetd will launch a script that will listen on port 23, on connection it will prompt for the username, run something equivalent to "getent passwd $user | awk -F: '{print $6}'" to obtain the homedirectory fot the user. The script will then run /chroot $homedir /usr/sbin/in.telnetd. I've not yet figured out the logistics of how to do this exactly as a simple bash script doesn't seem to be cutting it. I think this may be the best way to go about it unless there are any other suggestions.<br><br>-- <br>Ted W. < Ted@Techmachine.net ><br>Registered GNU/Linux user #413569<br><br><br><br><br>_______________________________________________<br>Ale mailing list<br>Ale@ale.org<br>http://mail.ale.org/mailman/listinfo/ale<br>See JOBS, ANNOUNCE and SCHOOLS lists at<br>http://mail.ale.org/mailman/listinfo<br></div><br></div></div></body></html>