alarm configuration

VMware Virtualization Replacement Selection and Configuration Recommendations for the Securities Industry

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Introduction This article shares recommendations for the selection and configuration of VMware virtualization replacements, providing valuable information on core selection principles, technology route choices, and key considerations for domestic platforms. This information is practically significant for securities professionals using VMware and even for other financial practitioners. Author: Yu Dan, Operations Engineer at a securities company, … Read more

Building and Compiling Linux Crypto Driver

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Driver Create a<span>demo</span> directory under <span>linux/drivers/crypto</span>. Create the following files: $ tree demo ├── demo_crypto_core.c ├── demo_crypto_core.h ├── demo_crypto_hash.c ├── Kconfig └── Makefile The content of the <span>Makefile</span> is as follows: # SPDX-License-Identifier: GPL-2.0-only # Enable debugging ccflags-y := -DDEBUG obj-$(CONFIG_CRYPTO_DEV_DEMO) += demo_crypto.o demo_crypto-objs := demo_crypto_core.o \ demo_crypto_hash.o The contents of the other files will … Read more

Detailed Explanation of FreeRTOS Configuration File

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Detailed Explanation of FreeRTOS Configuration File —— Understanding freertos_config.h from Scratch As one of the most popular real-time operating systems in the embedded field, FreeRTOS’s core configuration file<span>FreeRTOSConfig.h</span> acts like the “control panel” of the system. This article will guide you through this configuration file line by line, allowing you to truly understand the meaning … Read more

Guide to Remote Access Linux Desktop with TigerVNC

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“Say goodbye to the hassle of the server room, and access your Linux desktop remotely, TigerVNC is truly amazing”—— this is undoubtedly the voice of countless operations and maintenance personnel, developers, and tech enthusiasts. TigerVNC has become a powerful tool for remote access to Linux desktops due to its lightweight, efficient, and stable characteristics. In … Read more

A Step-by-Step Guide to Configuring ESP32-BLE as a Replacement for Xiaomi Gateway

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Smart Home Cost-Saving Strategy Series Part 2 | Easy for Beginners Introduction: Yesterday, I shared the cost advantages of using ESP32 to replace the Xiaomi Gateway, and many readers are eager to try it out. Today, we will perform the actual operation and configure the first ESP32_ble_tracker step by step! Last Issue Review: Enthusiastic Feedback … Read more

Displaying Asterisks for Password Input in Linux Terminal

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Introduction Recently, my hard drive failed, and I spent a lot of time recovering and organizing data, resulting in very low productivity. 🤣 My hard drive broke down The hard drive suddenly failed, and it took me half a month to recover the data… (including data recovery tools) As for the promised new website, it … Read more

Linux Learning Notes – sudo

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1. What is sudo <span>sudo</span> (superuser do) is a tool used in Linux/Unix systems to execute commands as a superuser (root) or another specified user. Ordinary users can gain temporary administrative privileges through <span>sudo</span>, avoiding the need to use the root account directly. Using <span>sudo</span> enhances system security and reduces the risk of accidental operations. … Read more

Summary of Linux Ecosystem Downloads and Mirror Addresses

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Summary of Linux Ecosystem Downloads and Mirror Addresses

This document summarizes some commonly used systems and download addresses on servers, as well as operations for switching to domestic software sources, for reference only. Regarding system selection, I personally recommend Ubuntu, or if you must use RHEL-based systems, CentOS is no longer available, but Alma and Rocky are quite similar. For domestic use, consider … Read more

A Journey to One-Click Start OpenClash Configuration on WanKe Cloud ‘Old Hen’ with OpenWrt

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A Journey to One-Click Start OpenClash Configuration on WanKe Cloud 'Old Hen' with OpenWrt

In the previous issue, we successfully flashed OpenWrt onto the WanKe Cloud ‘Old Hen’. This time, we will introduce how to install and configure OpenClash on WanKe Cloud. First, install the OpenClash service in the OpenWrt system of WanKe Cloud. The version I am using already includes this service, and the installation process is very … Read more

Setting Design Rule Check (DRC) Configuration in AD for PCB Inspection

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Setting Design Rule Check (DRC) Configuration in AD for PCB Inspection

Setting Design Rule Check (DRC) Configuration in AD for PCB Inspection Issue Encountered: In a designed PCB circuit, we cannot guarantee that all traces are routed correctly in one go. Therefore, we generally need to set up routing rules checks to ensure that errors do not occur during the routing process. Below, I will introduce … Read more