For most of the Paranoid Penguin's illustrious four years with Linux Journal, I've tended to write tools-focused columns. I've described how to secure Sendmail, how to add SSL encryption to things by ...

One of the last things the Linux kernel does during system boot is mount the root filesystem. The Linux kernel dictates no filesystem structure, but user space applications expect to find files with ...

File permissions are core to almost everything you do on your Linux machine, from viewing a PDF to saving an image and running an app. The core model keeps things simple, but there are quite a few ...

Recall also that we set the group permissions on this directory to r-x, that is, group-readable and group-executable, so that our fellow members of the drummers group could enter this directory and ...