Linux

Blog Content reference fromHttp://www.cnblogs.com/xuxm2007/archive/2011/04/01/2002162.htmlhttp://blog.csdn.net/pbymw8iwm/article/details/7876797GDB Manual (Debug multiple program chapters + Debug multithreaded process chapters)GDB multithreaded

One using the return value of the Select function (for situations where there must be data interaction within a certain time period)#include int select (int maxfd + 1, fd_set *readset, Fd_set *writeset, fd_set *exceptset, const struct Timeval *

In Unix systems, many files are packaged into a single vault by Cpio or tar, and then compressed with compress to achieve the goal. The methods and procedures used are described in Cpio and tar, respectively.First, Cpio1. File or directory packaging.

Original http://www.blogjava.net/freeman1984/archive/2010/09/23/332715.htmlFeel this article to write quite full, take it to exist in the blog, convenient later query.To create a cron service for the current user1. Type CRONTAB-E edit crontab

One. Check the installation of VSFTPD in Linux.Two. Shut down SELinux in the system and restart the computerTo close the SELinux method:Modify the Selinux= "" in the/etc/selinux/config file to Disabled, and then restart.If you do not want to restart

The purpose of the tool is to read the text file line-by-row, then slice the read-in text (by default, separated by a space), and then read it to the next line, which is already available. is a format report generation tool that is then used to

SCP upload Ifenslave.tar package, unpack tar xvf ifenslave.tar    Install this software 650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/6E/E8/wKioL1WLlqegWN-DAABC_iLKvlM727.jpg "title=" 1.png " alt= "Wkiol1wllqegwn-daabc_ilkvlm72

System Invocation OverviewA system call , as the name implies, is a set of "special" interfaces that the operating system provides to user program calls. This "special" interface can be used by the user program to obtain the services provided by the

Linux for viewing process commands are also very powerful, commonly used such as: PS TopBut there is less uniformity in disk performance monitoring.Here are some of the disk monitoring commands, here just to play a role, detailed use of parameters

Objective:Rsync can achieve triggered file synchronization, but through the crontab daemon mode trigger, synchronous data and actual data will be different, and inotify can monitor the file system changes, when the file has any changes, trigger

DMA transfers can be memory-to-memory, memory-to-peripherals and peripherals to memory. The code here implements the memory-to-memory data transfer through the DMA driver./*function Description:when We call Dmatest_read (), it'll transmit src memory

1.DNS Concept:In a nutshell, DNS is a 53-port service on the system that provides the conversion of domain names and IP addresses to each other. For example, you visit www.csdn.net, the router is impossible to know this address, you need to connect

Linux DaemonDaemon (Daemon) It is carried out in a specific process background.Event. Daemons are a very practical process.Most of Linux's servers are implemented with daemon processes.For example, internetserverinetd,webserverhttpd and so on.At the

1: Create a new Folder2: Unzip the file　　3: Move wordpress files to wordpress file　　4: Start installation in browser open localhost/wordpress5: Need to create a new database, here new database WordPress6: Enter information for the installation

This is a collection in the log of the document, the original view server sshd log found a lot of unknown IP attempts to log in, so what to prevent such a thing to happen. Online to find the next use denyhosts can solve such problems, so it will be

Linux disk performance monitoring In linux, many commands for viewing processes are also very powerful. Commonly Used Commands include: ps top However, the disk performance monitoring is not so uniform. The following lists some disk monitoring

Install redis cluster in CentOS1. [root @ localhost liu] # wgethttp: // download. redis. io/redis-2.8.21.tar.gz or wget http://download.redis.io/releases/redis-3.0.2.tar.gz2. Decompress tar -zxvfredis-stable.tar.gz 3. Check whether tcl rpm-qa is

Preparations for building an OpenStack cloud system on CentOS7 The system uses centos7.1 for minimal installation and the language is English. For more information about installation, see Centos7.1 system installation graphic explanation. After

Install SVN server on CentOS After one day, I finally placed the SVN server and made a note. Software Environment Virtual Machine: WMware Workstation 10, operating system: CentOS6.5. The system automatically downloads SVN software, so virtual

CentOS6.6 install heartbeat for High Availability I recently learned about the High Availability Technology in linux under the guidance of a teacher, using the heartbeat software to achieve high availability of Server clusters. Below I will record