A LIDS free session (LFS) is a terminal session that is not restricted by LIDS. This option is available so you can administer your system without having to reboot into a non-LIDS kernel. In order for this to work, you must have selected this option when you compiled your LIDS enhanced kernel:
[*] Allow switching LIDS protections |
bash# lidsadm -S -- -LIDS |
Enable LIDS again (lidsadm -S -- +LIDS).
Log out of the terminal.