Linux Security: Disk Encryption with eCryptfs
Install eCryptfs on the Provided System
sudo apt-get install ecryptfs-utils
Configure ‘/opt/protected’ as an Encrypted Mount
sudo mount -t ecryptfs /opt/protected /opt/protected # Use "supersecret1" as passphrase # Accept defaults fot all prompts
Copy the Contents of ‘/etc/profile.d’
sudo cp /etc/profile.d/* /opt/protected/
Re-encrypt ‘/opt/profile.d/* /opt/protected/
umount /opt/protected