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What is Netty 1. Netty is a client server framework based on NIO, which can be used to develop network applications quickly and easily. 2. It greatly simplifies and optimizes network programming such as TCP and UDP socket server, and has even better performance and security. 3. Support a variety of protocols, such as FTP, SMTP, HTTP and ...

This is a new column opened by the author. It mainly translates the APT reports of well-known foreign security manufacturers, understands their security technologies, and learns their methods of tracing APT organizations and malicious code analysis. I hope it will be helpful to you. Of course, because the author's English is limited, he will ch ...

Basic concepts Namespace The mapping from name to object is mostly implemented by dictionary in python Built inglobalLocal, local Namespaces have a life cycle, which simply means that the function ends when it returns Scope python programs can directly access the body area of the namespace Built inglobalenclosing, which is outside th ...

1, File class 1.1. Overview and construction method of File class File: it is an abstract representation of file and directory pathnames Files and directories can be encapsulated into objects through File File (String pathname) / / creates a new file instance by converting the given path name string to an abstract path name File (String p ...

preface "If you cannot measure it, you cannot improve it". In daily development, there are many options for calling some code or using tools. When we are not sure about their performance, the first thing we want to do is to measure it. Most of the time, we will simply use multiple counts to measure the total time-consuming of this method. Ho ...

preface netfilter/iptables (iptables for short) constitute the packet filtering firewall under Linux platform The iptables component is a tool, also known as user space, that makes it easy to insert, modify, and remove rules from the packet filter table netfilter component, also known as kernel space, is a part of the kernel. It is composed ...

Open the turntable lock Title Link Title Description: You have a turntable lock with four round dials. Each dial wheel has 10 numbers: '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'. Each paddle wheel can rotate freely: for example, change '9' to '0', and '0' to '9' (remember). Each rotation can only rotate one digit of one dial wheel. T ...

title: Java basic syntax date: 2021-02-04 14:24:12 categories: Java tags: Basics After learning C language, thinking is still process oriented programming thought. Now start learning Java and change your mind. I hereby write a blog to record the knowledge points of Java. Some common repetitive contents in the programming language (such as e ...

1.Posix shared memory concept POSIX stands for Portable Operating System Interface (abbreviated as POSIX). POSIX standard defines the interface standard that the operating system should provide for applications. It is the general name of a series of API standards defined by IEEE for software to run on various UNIX operating systems. Its fo ...

*This article contains many code fragments. It is recommended to browse on the PC side:https://cloud.tencent.com/document/product/876/68589Article catalogueOverview and development preparationStep 1: write login function and home page codeStep 2: home page logic processingStep 3: realize the function of extracting notesStep 4: my note page desi ...