Hello everyone, I am the Intelligence Guy~ In Linux driver development, have you ever encountered the problem of how to save private data for different device instances? For example, a USB camera needs to store resolution parameters, and a GPIO device needs to record interrupt handler functions. Directly modifying the <span>struct device</span> structure? This would … Read more
For Linux users in China, slow software package download speeds and delayed system updates have long been a persistent issue. Today, I will share a powerful one-click mirror switching script that works across distributions—LinuxMirrors, paired with high-quality domestic mirror sites, easily doubling your download efficiency! One-click mirror switching script: Configuration completed in 30 seconds LinuxMirrors … Read more
Commands related to the file system in Linux are summarized as follows: 1 Environment Operating System: Ubuntu 22.04.5 LTS 2 df -h, to check all mounted points 3 df -h /, to check the mount point of any directory 4 df -hT, to check the file system type of the mounted points 5 mount -l, … Read more
Shake Network Technology NewsClick the right to follow for the latest technology news! Cybersecurity researchers recently demonstrated a proof-of-concept (PoC) Rootkit named “Curing” that utilizes the Linux asynchronous I/O mechanism io_uring to bypass traditional system call monitoring. 01 Significant Blind Spots in Security Tools ARMO stated that this leads to “significant blind spots in Linux … Read more
The more you act, the more you know; the deeper your knowledge, the further you can go. To stimulate students’ interest and enthusiasm for studying information technology, the School of Information Technology has specially launched the “IT Knowledge Base” column. Continuous effort, like water dripping through stone, conveys the pulse of information, cultivates social talents, … Read more
Passwordless login is primarily based on the SSH (Secure Shell) protocol, utilizing key pairs for authentication. In simple terms, a pair of keys, including a public key and a private key, is generated on the client side (the server initiating the login). The public key is then added to the authorized list on the server … Read more
1. Overview of File Descriptors In Linux and other Unix-like operating systems, file descriptors are a core concept that provides a unified interface for programs to interact with files, devices, and other input/output (<span>I/O</span>) resources. Simply put, a file descriptor acts like a “ticket” or “handle” for programs to access these resources. Whenever a program … Read more
Shake Network Technology NewsClick the right to follow for the latest technology news!The ARMO research team recently disclosed significant flaws in Linux runtime security tools, confirming that the io_uring interface allows rootkits (kernel-level malware) to bypass conventional monitoring solutions.Tests show that mainstream tools, including Falco, Tetragon and even Microsoft Defender for Endpoint, are unable to … Read more
Original:https://mp.weixin.qq.com/s/JX5PS7Cxs9mRzzl96cwzRg 1. Introduction A significant portion of Linux power management deals with functionalities such as Hibernate, Suspend, and Runtime PM. These functionalities are based on a similar logic, known as the “Power Management Interface.” The code for this interface is implemented in files such as “include/linux/pm.h” and “drivers/base/power/main.c.” Its main functions are: to define Device … Read more
Common Operations of Linux LVM LVM (Logical Volume Manager) is a logical volume manager in Linux used for managing disk storage. It abstracts physical hard disk partitions into Physical Volumes (PV), combines them into Volume Groups (VG), and then divides them into Logical Volumes (LV). LVM supports dynamic resizing of volumes, snapshots, striping, and other … Read more