I recently had a problem with my website zimmer69.de. Some not so nice fellow told his opera browser to reload a 300k page every 5 seconds, moved it to some tab and forgot about it for weeks. He caused 2 Gb of traffic per day. Time to implement some cache control.
This post describes how to encrypt the home directory of your users on GNU Linux with the help of TrueCrypt and PAM using the login-password as encryption key. I wrote about Automatic encryption of home directories using TrueCrypt before. This time we'll use TrueCrypt 6.2a. Futhermore we'll use Ubuntu 9.04 Jaunty Jackalope and we replaced pam_mount by pam_exec. For convenience this post will be selfcontained (ie. I copy redundant parts from the old one).