Iko[N]otE

This post is based on this article with it's comments. In the /etc/ssh/sshd_config file edit the Subsystem like this: Subsystem sftp internal-sftp Add these to the end of the file: Match group filetransfer   ChrootDirectory %h   X11Forwarding no   AllowTcpForwarding no   ForceCommand internal-sftp Finally restart the OpenSSH server: service ssh restart Create the group for sftp access: addgroup filetransfer If you add this group to existing users, then they will be prevented to login via remote shell, though still be available through su . usermod -G filetransfer username chown root:root /home/username chmod 755 /home/username Now users cannot create anything in their jail, but it can be tuned with the last command. Though I personally use this technique to jail those users that are able to manage their own websites' content through sftp. I add those web directories through mount 's bind option as the normal symlinks won't work. You can ...

I recently wished to migrate my dev vm from VirtualBox To VMware. So the only thing I needed is to convert the VDI virtual disk into VMware's VMDK format as VirtualBox can read several disk types but VMware needs it's own child. So as long as VirtualBox is still installed, I could use this simple command: vboxmanage clonehd old_virtualbox_disk.vdi new_vmware_disk.vmdk –format VMDK –variant standard Obviously, you have to find the vboxmanage executable yourself on your system. This command is crossplatform. :)

When I use VirtualBox or VMware I sometimes have to change the network adapters of the virtual quests and there comes the problem in case of my Ubuntu VMs that their ethX adapter's expected MAC address differs from the one they get from the host. Here is that single config file that you have to sync to contain the new address: /etc/udev/rules.d/70-persistent-net.rules The setting containing MAC address in the interface's line is: ATTR{address}==""  After reboot everything is ok :)