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This paper mainly introduces the application of centos7 9. Various deployment modes and configuration management of FullNAT mode of system deployment DPVS, including IPv4-IPv4, binding, IPv6-IPv6, IPv6-IPv4 (NAT64) and keepalived mode. The following configurations are all based on dual arm mode, and the corresponding toa module of DPVS has b ...

Everyone who needs to learn LLVM must know that this is a powerful open source compilation tool chain. In fact, the more you study later, you will find that this thing and the design idea are very awesome. This thing can bring pluggable optimization to the compilation process, which is very convenient. This article does not talk about what LLVM ...

Condition true is returned if the condition is met, and false is returned if the condition is not met @FunctionalInterface public interface Condition { boolean matches(ConditionContext context, AnnotatedTypeMetadata metadata); } Several sub interfaces and classes Condition has several sub interfaces and classes, and its functions are exte ...

Start process There are two main startup processes for FreeRTOS In the main function, initialize the hardware, RTOS system and create all tasks. Finally, start the RTOS scheduler to start multi task scheduling. (create first, then schedule) int main (void) { /* Hardware initialization */ HardWare_Init(); /* RTOS System initiali ...

Smart contract overview Smart contract is the software running on the blockchain. It is often compared to "vending machine", because it is easy to understand: the vending machine accepts and executes external instructions. When the customer selects the goods and pays, the vending machine will release the goods to the customer without ...

L2-016 wish all lovers in the world are brothers and sisters who have been separated for many years (25 points) ha-ha. We all know that intermarriage is not allowed within five clothes, that is, if the nearest common ancestor of two people is within five generations (i.e. myself, parents, grandparents, great grandparents and high grandparents), ...

1, Introduction to internal implementation of Git warehouse Git is essentially a content addressable file system, which locates the file according to the SHA-1 hash value of the file content. The core of Git is a simple key value data store. Inserting any type of content into git database will return a key value. The inserted content can be re ...

Basic Java syntax (2) The wood that embraces is born at the slightest; The nine storey platform starts from the tired soil; A journey of a thousand miles begins with a single step—— Tao Te Ching 10, Scanner class (user interaction data type) From Java 5 to Java util. Scanner is a package. We can get user input through s ...

For reference to source code analysis, please visit: https://gitee.com/lidishan/apollo-code-analysis Statement before reading: This article does not provide relevant usage instructions, but only analyzes the Apollo source code Apollo overall architecture diagram What is the core function of Apollo server? Configuration change and discovery C ...

1, Why use validator? Parameter verification is a very important step in the development process. If the front-end parameter verification is for user experience, the back-end parameter verification is for security. Have you ever done parameter verification? Judge one field by one. The disadvantages of this approach are obvious - code redundanc ...