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overall design The message log is an important basis for the normal operation and abnormal troubleshooting of the monitoring system. The log is divided into two parts. One part is the disk log, which records the specific contents of all messages received and sent. This part of the log is stored on the disk file in the form of text, which is ma ...

Python wechat ordering applet course video https://edu.csdn.net/course/detail/36074 Python practical quantitative transaction financial management system https://edu.csdn.net/course/detail/35475 Reading catalog 1, Introduction to firewall2, Introduction to IPtables3, iptables package filtering process iptables workflow 4, 4 Table 5 chain ...

Memory Forensics Forensics file suffix raw,. vmem,. imgCommon commands (imageinfo, pslist, dumpfiles, memdump)Suspicious process (notepad, cmd)Combined with disk ForensicsUnderstand some operating system principlesCommon file suffixes dmg, img Volatile basic commands You can use the - h parameter to get the usage method and plug-in introduct ...

This article introduces the thread synchronization and mutex mechanism under Linux - mutex lock. When multiple threads are concurrent, multiple consumers will get data. In this case, the data needs to be protected. For example, like the train ticket system and the bus ticket system, the total number of tickets is fixed, but there are many ticke ...

preface During the test process, we often encounter the need to upload local files to the remote server, or pull the files on the server to the local for operation. In the past, we often used the xftp tool. Today, let's introduce a Python library Paramiko, which can help us upload and download remote servers through code, or input operation ...

The prompt Address already in use must have been encountered. How can we quickly find and solve the problem? Here are several postures to learn about When troubleshooting network connectivity or application specific problems, one of the first things to check should be which ports are actually used on the system and which application is liste ...

5 Makefile project management Script file: put a series of commands in a file for batch execution Name: makefile Makefile One rule: Objectives: dependencies Command (1 table indent before the command) Two functions: #The wildcard function, together with wildcards, finds all the files in the folder . c Documents src=$(wildcard ./*.c) #P ...

Building a virtual Web host Virtual iweb host refers to running multiple web sites in the same server, in which each site does not actually occupy the whole server independently, so it is called "virtual" web host. Through the virtual web host service, we can make full use of the hardware resources of the server, so as to greatly ...

Five chains and four tables Concept of chain After iptables is enabled, the data message will pass through five checkpoints from entering the server to exiting, namely pre routing, input, output, forward and post routing There are multiple rules in each level. Data packets must match these rules one by one in order. These rules are connect ...

Basic information Hardware configuration: Raspberry pie 4B 4G SDCart burn in system: Raspberry Pi OS Lite 2021-10-30 System creation and connection Mirror first Raspberry Pi OS Lite 5.10 adopt Win32 Disk Imager Burn it into the SD card. There are many ways for the computer to communicate with raspberry pie. It is recommended that th ...