Configure the clients to use SSH transport (client-driven)

Create an autoinstall CD with the following command:

  # si_mkautoinstallcd --out-file /tmp/boot-package/systemimager.iso --kernel \
    /tmp/boot-package/kernel --initrd /tmp/boot-package/initrd.img --append \
    "MONITOR_SERVER=172.16.36.1 MONITOR_CONSOLE=yes SKIP_LOCAL_CFG=y SSH=y"
Remember to replace the address of your monitor server (if you want to use it) and add all the needed installation parameters. If you prefer to use an auto-install USB drive, instead of a CD run:
  # si_mkautoinstalldisk --device YOUR_USB_DEVICE --kernel \
    /tmp/boot-package/kernel --initrd /tmp/boot-package/initrd.img --append \
    "MONITOR_SERVER=172.16.36.1 MONITOR_CONSOLE=yes SKIP_LOCAL_CFG=y SSH=y" \
    --yes
Then boot the clients with the autoinstall CD / USB drive (PXE is not recommended with client-driven SSH) and enjoy the secure auto-installation.