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/** * General Inner class: The normal inner class is not static decorated and is defined in the Outer class class body. * 1. Methods in the general inner class can directly use instance variables and instance methods of the outer class. * 2. In a

What is it called in the C function to save the state? For example, you are now using LUA to invoke the C function Func1, but some of the data in Func1 is saved for later use after the call is finished. And that data is the so-called state, which is

Considering the security of server data, I consider adding a backup server to achieve better redundancy through data synchronization.Linux has a very good command. Rsync can implement differential backups, so let's say how it's used:The Rsync

Guide Hello everyone, the theme of this Sholi sharing is kvm&libvirt basic concepts and development of the talk, the content of some messy loose, mainly based on their early collation of notes and practical sentiment, some content is inevitably

650) this.width=650; "Title=" is not named 1. JPG "alt=" wkiom1ygs9rzw_j7aabun7pwznq024.jpg "src=" http://s3.51cto.com/wyfs02/M02/74/8E/wKiom1Ygs9rzW_ J7aabun7pwznq024.jpg "/>On the basis of the previous article, add DRBD on both servers and start

RPC (remote Procedure call Protocol)-a remoting protocol that requests services from a remote computer program over a network without needing to know the underlying network technology. The RPC protocol assumes that some transport protocols exist,

-------------------------------------------------------------Operating system LINUX Centos6.6 64-bitEnvironmental LNMP--------------------------------------------------------------Gearman, official website (http://gearman.org/)

Apache Study Notes (experience)Http://blog.csdn.net/btbtd/article/details/288027#2Classification# 01. General Settings# 02. Virtual Host# 03. + Alias# 04..htaccess# 05.Log# 06.URL Rewrite# 07. Other####### #01. General Settings# Listen# Listening

Believe that the use of Openvswitch people know, openvswitch because to replace a portion of the Linux kernel, so in the modification of Openvswitch source code, each time the need to recompile and install, the process is very mechanical and boring,

1. FindFind command/pattern: Look down for matching characters? pattern: Find matching characters upWhere pattern is a string that needs to be matched, for example:/CD #全文查找cd/cd #查找 cd string (note space)Pattern can also use regular

The traditional sub-database sub-tableThe traditional sub-database is implemented by Application layer logic, which is common tables and libraries for the database level.Sub-LibraryWhy the library is dividedFirst, in the case of a single database

Installation Environment:Virtual operating system:centOS7 2 unitsIP address is 192.168.1.10 192.168.1.11Memory:1GB MemoryZookeeper version:3.4.6Preparation before installation:1, set the fixed IP address, edit the

Brew is the package management tool under Mac, and it's easy to install development tools by using Github to host your Mac-friendly compilation configuration and patches. Mac comes with Ruby so it's easy to install, and it automatically installs git

2015.1.21Essay:directive: Cp-v Show Copy processSort show files in orderWhereis Find commandln-s src dest Connection file dest-src/etc/apt/sources.list//address where the image is stored/var/lib/lists/*//address where the index file is

Windows installation: Solve the problem:ProgramIncorrect configuration ......" Install"Microsoft Visual C ++ 2008 SP1 redistributable package (x86)"   1 Preface In our daily work, we often encounter the following situations: in static

First, the system environmentReference:http://ywzhou.blog.51cto.com/2785388/15782111. Local SettingsCentos-6.5-x86_64-bin-dvd1.isoCentos-6.5-x86_64-bin-dvd2.isoHost Name: mail.yourmail.comIP Address: eth0 = 10.188.1.832. Install the Software(1)

In shell supplement tool-expectlinux, in shell programming, some program input must receive tty input rather than stdin input. if one implementation is required, it is always Ct. 1. install expect1yuminstallexpect 2, instance 1, and ssh for

How PHP judges IP and jumps to the corresponding city sub-station This article mainly introduces the PHP judgment IP and jump to the corresponding city sub-station method, the example analysis of PHP parsing URL and jump skills, with a certain

Article Title: Linux security overview. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. As Linux is an

1. command line editing function ctrl + a: Jump to the beginning of the line ctrl + e: jump to the end of the line ctrl + u: Delete the content from the cursor to the beginning of the line ctrl + k; delete the content from the cursor to the end of