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Tomb is a simple shell script that allows you to encrypt files in Linux. Unlike full disk encryption, Tomb enables you to only include the files and folders that you want to encrypt. Here we show you how to install and use Tomb on Ubuntu.
The people who can use the Linux sudo command are members of a small and select club, sometimes called the “sudoers” list. Each member has the same powers as root. So how do you join that club? We’ll walk through adding a person to sudoers as well as editing the sudoers file to limit permissions.
File transfer over a network can be done in various ways and using different protocols. The most commonly used protocols for copying files remotely are Rsync, SCP and SFTP.
The Linux rsync command is a powerful file copying and folder synchronization tool. Here are ten common use-cases that you’ll be able to put to good use on your own systems.
File permissions are critical for the security of a Linux system. But how do you set default permissions for new files on Linux?
Chroot is a Linux/Unix utility that can change or modify the root filesystem. With the help of the chroot command, you can easily create an isolated filesystem inside your primary filesystem. Chroot is especially helpful to make your work and home environment separated or if you want a test environment to test software in isolation.
In Linux, all directories and files have access permissions. You can use chmod to set your preferred access rights for different users. But what decides their default permissions? Let’s talk about umask.
