Understanding the Differences Between Linux Commands ‘su’ and ‘sudo’ Previously, I was confused about the two commands su and sudo. Recently, I specifically searched for information on this topic and finally clarified the relationship and usage of both commands. This article aims to systematically summarize the findings. 1 Preparation Since this blog involves user switching, … Read more
In Linux system administration, the Principle of Least Privilege (PoLP) is one of the core principles of secure operations. Directly using the <span>root</span> user for operations carries high risks; it is recommended to create an administrator user with <span>sudo</span> privileges (such as <span>admin</span>) to reduce the impact of accidental operations and security threats. This article … Read more
Produced by | OSC Open Source Community (ID: oschina2013) The Internet Security Research Group (ISRG) is working on the Prossimo project, which is rewriting sudo and su in Rust to enhance their memory safety, ensuring they no longer suffer from memory safety vulnerabilities, and further strengthening the security of the Linux and open source ecosystem. … Read more
In a Linux system, to set up sudo passwordless access, follow these steps: Open the sudoers file as an administrator: In the terminal, enter the command sudo visudo. This command will open the sudoers file in a safe manner, ensuring the file syntax is correct and preventing system issues due to incorrect edits. Add the … Read more