Posts Tagged ‘ssh’

schroot – chroot for any users

January 7th, 2010

From manpages: schroot allows the user to run a command or a login shell in a chroot environment. If no command is specified, a login shell will be started in the user current working directory inside the chroot.

I’ve been trying some virtual machines solutions to execute some programs 32bits in my machine. But it’s take very time, start a xen VM or virtualbox. Often this solutions needs some maintain additional costs to setup a X server to run any X-based program.

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Posted in linux system, opensource software

Tags: linux ssh

OpenSSH logging with ChrootDirectory

January 7th, 2010

Finally following up on the previous article on the subject, I found some time to investigate logging what happens in an `internal-sftp` session using rsyslog.

Making `syslog` available in the chroot

Simply create a dev directory in each one of the chosen user chroot directories.

# mkdir /home/user/dev

Configuring `rsyslog` to probe the new logging source

Simply drop the following contents in /etc/rsyslog.d/sshd.conf :

# Create an additional socket for some of the sshd chrooted users.
$AddUnixListenSocket /var/fileserv/dev/log

# Log internal-sftp in a separate file
:programname, isequal, "internal-sftp" -/var/log/sftp.log
:programname, isequal, "internal-sftp" ~

 » Read more: OpenSSH logging with ChrootDirectory

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Posted in linux system

Tags: linux ssh