suricata uses pfring to monitor multiple network cards for error analysis and resolution

Problem scenarios We use Suricata for traffic analysis. Suricata is deployed on a 48-core physical machine with a multi-network card. Due to business needs, suricata's network card for monitoring traffic has been upgraded from 5 to 6, enp176s0f1 has been added, and several similar errors have been found in suricata's log: <Error> - [ERRC ...

Added by pandaweb on Tue, 26 May 2020 21:51:27 +0300

JS Array Method Complete

  1. Before using the methods of arrays, you need to create arrays, which can be created in the following ways: Literal Quantity (json) var arr1 = []; //Create an empty array var arr2 = [5]; //Create an array with a single element var arr3 = [5,6,7]; //Create an array with multiple element ...

Added by gprobst on Tue, 26 May 2020 20:21:46 +0300

Detailed explanation of Spring IoC createBean method

preface This article mainly analyzes the flow of the createBean() method of Spring IoC and the bean life cycle. Here is a general flow chart: text AbstractAutowireCapableBeanFactory#createBean @Override protected Object createBean(String beanName, RootBeanDefinition mbd, @Nullable Object[] args) throws BeanCreationException { if ( ...

Added by skippence on Fri, 22 May 2020 13:27:50 +0300

Android Handler mechanism: how ThreadLocal works

1, Handler mechanism and ThreadLocal In the Handler mechanism, we will encounter a very important class in Looper: ThreadLocal, ThreadLocal is not a thread, its function is to store data in each thread. When the handler is created, it will get the Looper of the current thread to construct the message loop system. The way to get it is through ...

Added by PJ droopy pants on Fri, 22 May 2020 08:29:05 +0300

c language version remove source code comments

Note the following points when removing comments in the code First, comments have multiple or single line comments from "/ *" to "* /" Second, there is a single line comment of "/ /" Also note that characters in double and single quotation marks are not included in comments So I designe ...

Added by PHPeter on Thu, 21 May 2020 17:44:02 +0300

Research on WeChat Red Packet Algorithm

Background: Before the New Year relatives were grabbing red envelopes, they all wanted to grab the first one, saying that the sooner the grabbing, the bigger the grabbing.In fact, this must be incorrect. WeChat should have generated all the red envelopes when you sent the red envelopes. So you said that no matter how many people grab them, it s ...

Added by Roble on Thu, 21 May 2020 06:48:23 +0300

Fully parsing different python threads

thread The scheduling unit of CPU is simply the end executor in the program, which is equivalent to the position of younger brother. Some people say that the thread in python is a chicken rib because of GIL, but it is not a chicken rib. After all, it works well when performing io operations, but it is unsatisfactory when performing calculation ...

Added by greenhorn666 on Wed, 20 May 2020 10:16:40 +0300

Introduction to Connection-Control for MySQL

In Oracle and SQL Server databases, you can set up some complex account password policies, such as locking an account more than N times after a failed login, so can you do the same in MySQL?The answer is that MySQL has similar capabilities, except in MySQL it delays the response time when its login fails beyond the threshold, instead of locking ...

Added by marco839 on Tue, 19 May 2020 20:23:28 +0300

Solution to the problem of merging stones

[Title Description] N piles of stones are placed in rows on a playground. Now we will combine the stones into a pile in order. It is stipulated that only two adjacent piles of stones can be selected to merge into a new pile at a time, and the number of new piles of stones shall be recorded as the score of this combination. Calculate the mini ...

Added by Amgine on Sun, 17 May 2020 17:59:59 +0300

The fifth experiment report of operating system memory management

0 personal information Zhang yingzi 201821121038 Calculation 1812 1 purpose of the experiment Learn more about memory management through programming. 2 experiment content On the server, we use Vim to write a program: simulate a memory management algorithm, test the result, and explain the running result. 3. Experiment report    Three po ...

Added by bryansu on Sun, 17 May 2020 11:48:25 +0300