CENTOS7 Configuration Installation mysql5.5 master-slave replication (one master two from)

1: Install the mysql5.5 databasePlanning:Master: Server-1---10.64.5.167From: server-2---10.64.5.170From: server-3---10.64.5.172Data Catalog:/var/lib/mysqlDownload mysql5.5#wget Http://cdn.mysql.com//Downloads/MySQL-5.5/MySQL-client-5.5.46-1.el7.x86_6

Ubuntu Environment Variables--Add and delete

In Ubuntu 14.04, for example, other Linux distributions are similar, but there are differences. Take path for example here.Add several locations for environment variables /etc/profile-This file sets the environment information for each user

AES Encryption algorithm detailed

0 Introduction to AESThe American Institute of Standards and Technology released the Advanced Encryption Standard (AES) in 2001. AES is a symmetric block cipher algorithm designed to replace des as a widely used standard.Based on the length of the

Analysis of MFC program execution process

a MFC Analysis of program execution process1) We know that in the WIN32API program, the entry of the program is the WinMain function, in which we complete the Registration window class, create the window, enter the message loop, and finally, the

Use the Zabbix API to get a list of servers under each group and more information

Now more and more companies choose to use open source software Zabbix to do server business monitoring, its high-grid user management is a bright spot, so you can call its interface to apply rights management to a lot of places, such as Fortress

WPF Notes (1.9 styles and control templates)--hello,wpf!

Original: WPF notes (1.9 styles and control templates)--hello,wpf!Another use of resources is style settings:Window>window.resources>Style x:key="MyStyle"TargetType="{x:type TextBlock}">Setter Property="VerticalAlignment"Value="Center" />Setter

Design mode-Viewer mode (List List Maintenance viewer)

Namespace ConsoleApplication1{Interface IObserver{void Receivemsg (string msg);}Class Observer:iobserver{String Key;Public Observer (String key){This. key = key;}public void Receivemsg (String msg){Console.WriteLine ("observer-" + Key + "received

Squid Reverse Proxy

The normal proxy method is a connection request that proxies the internal network user to the server on the Internet, and the client must specify a proxy server and send a connection request that would otherwise be sent directly to the server on the

Heat Orchestration Template (HOT) specification

1. Template structure1.1 StatusHot is a new template format that replaces Heat cloudformation-compatible format (CFN), and heat has started to support multiple versions of hot since Juno version1.2 Template formatThe hot template style is defined by

High-density and highly integrated otn wavelength-division transmission system

High-density and highly integrated OTN Wavelength-Division transmission SystemThis wave division multiplexing technology in the heyday, a variety of new technologies emerge. The goal is the same, that is to meet the network era of the operators.

"Turn" Wang Feng stand on the Tide | Long report

Wang Feng, who was questioned over-commercialized, threw himself at the centre of the business arena this time. Wang Feng and Fiil headset team, Fiil headset CTO Shanning (front left one), Fiil headphone CEO Pengjin (front left three)Article:

Break the pattern, break through the barriers and get out of your own creative comfort zone

Sunday evening, the sky early dark down, a dog downstairs has been called, a kind of quiet.I think it's the serenity that I'm going to pursue in the end of my life. Or say that the heart has already been old. BTW, who has heard of guns N ' Roses a

EC Reading Notes Series 13: clause 25 Consider writing a swap function that does not throw an exception

Remember:★ When STD::SWAP is not efficient for your type, provide a Swap member function and determine that it does not throw an exception★ If you provide a member swap, you should also provide a non-member swap to invoke the former. For classes

4.2.3 Standard Code

Python has a number of coded character set processing, some of which are implemented in C , and some using a dictionary mapping approach. The following table is a list of character sets sorted by name, some of which can be other names, such as utf-8

Day 365: "Prometheus 2" and renamed: "Alien 2"

Japan bo 365: "Alien" universe extension of sci-fi film "Prometheus" sequel named "Alien: Paradise Lost" (Alien:paradise Lost) not two months, director Ridley Scott in the new interview abandoned the name, changed to say "Prometheus 2" for "Alien:

"Developer must-read 10 free ebook"

"Developer must-read 10 free ebook"Below I provide a list of books for developers covering JavaScript, Python, HTML, and more. This list of books is suitable for both developers and designers. I hope you can get the benefit from it. These free books

Research on continuous Integration (CI)

The continuous integration (continuous INTEGRATION,CI) was approached shortly before.One, continuous integration is whatFirst, the concept of "integration". In the actual software development, two kinds of situations often occur:1. Several project

The first experience of Nmap

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recently contacted with Nmap. Discovering Namp is a powerful tool. It is said that the NSA is using this tool to imagine how powerful his function is. If you see the movie "The Matrix" you will also find Nmap figure, the following stills:On the left,

My University Road---"The road of the university"

Recently, I read the new book "The Road of the university" by Wu. In this book, the author of the daughter chose the University as an "opportunity" to systematically study the European and American many world-class universities, and personally

Use Huawei ENSP and basic configurations of Huawei Switches

Use Huawei ENSP and basic configurations of Huawei SwitchesHuawei switches are currently in very large Use in China. As we all know, the Network principles are the same. network devices of different brands only have different configuration methods,

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