Is it possible to encrypt a Linux system (Mint, Debian based) after installation? For an "on the fly" usage. My system is both : a client (www, ethernet), a local server (wifi).
I am working on a prototype, installing and configuring various packages and I aim to clone it onto other machines. For now I hope to test encrypting my prototype.
I'm reading doc about dm-crypt. For a full disk encrypt (data+system). It seems I need it. At login I'll provide the passphrase.