I am looking for something similar in functionality to PGPdisk (Windows) or crypt (Mac) Basically I need an encrypted filesystem that I can easily mount and unmount at will with a passphrase, Preferably this filesystem will exist in its encrypted form as a single file. I am not so bothered about security of contents whilst the filesystem is in the mounted state. I was thinking of doing something funky with a loopback mounted iso of an encrypted filesystem with some scripts to mount/unmount it. But then when looking for a suitable filesystem to format the loopback disk I noticed that the LDP has archived this HOWTO http://www.tldp.org/HOWTO/Loopback-Encrypted-Filesystem-HOWTO.html as being no longer relevant. So does that mean that there is a nice pre-packaged and GUI driven way of doing this now ?