Logging in as the root user should never be done on Linux. Using the root account could lead to disaster. Sudo is the preferred method of gaining elevated privileges. When I first started using Linux ...

Back in the early days of Linux, things were exponentially more complicated. The distributions were far less mature and required a particular system account to get things done. That account was root - ...

There are many aspects to security on Linux systems – from setting up accounts to ensuring that legitimate users have no more privilege than they need to do their jobs. This is look at some of the ...

Linux might sound scary for first-time Linux users, but actually, it isn’t. Linux is a bunch of open-source Unix operating systems based on Linux Kernel. These operating systems are called Linux ...

SecureLayer7 安全研究人员近日公布了一个影响 Linux 系统的安全漏洞（CVE-2025-6019）的技术细节和概念验证（PoC）利用代码。该漏洞影响依赖 udisksd 守护进程和 libblockdev 后端的 Linux 发行版，包括 Fedora 和 SUSE。在配置不当的环境中，该漏洞可被轻易利用，允许 allow ...

In the Linux Journal article “Implementing Encrypted Home Directories” (August 2003), I described how to encrypt home directories transparently. This article describes how to implement another ...