Linux

PrefaceHave seen in a very humorous way to explain the Windows Socket IO model, borrow this story, explain the Linux socket IO model;Lao Chen had a daughter who worked outside and could not come back often, and she contacted her by letter.Their

In multi-threaded or multi-process programming, there is a very important thing to focus on, that is, synchronization and mutual exclusion problems.Synchronization refers to the collaboration between multiple processes, whereas mutual exclusion

one, concurrency and stateConcurrency: Multi-CPU or single CPU multi-process multithreading simultaneous executionState: Simultaneous access to shared resourcesConcurrency occurs in the following 4 scenarios:(1) Multi-CPU(2) Single CPU multi-process

10. Recompile the kernel to support keyboard and mouse drivers11. Fourth Test start12. Using scripting to implement the INIT function13. Fifth Test start14. Compile the kernel so that it can directly identify the device files15. Sixth Test Start10.

First assume that your machine has finished jdk,maven, and already have Tomcat, so this step is not discussed here.There are two ways to install Jenkins: the first is on the official website as follows:Jenkins Download URL:The

What is awkAwk is a small programming language and command-line tool. (its name is from the first letter of its founder Alfred Aho, Peter Weinberger and Brian Kernighan's surname). It is well suited for log processing on the server, primarily

4 stages of getting Started with Linux systems for IT Technology Learning Guide (pure Dry ribbon diagram)60% of the world's people are using Linux. Almost no one is "in favor" of the Linux system, and many of the services we enjoy (including Web

/** Title: * Please write a program to set the SIGINT and sigquit signals, * and in the program to implement the operation of reading information from the file, * and ensure that the file is read and only in the process of reading the file will not

IP Port-Basic concepts such as protocols the computer on the Internet will have a unique 32-bit address, IP address. We access the server. You must pass this IP address. The LAN also has the reserved IP address 192/10/172 beginning. The IP address

Transferred from: http://www.cnblogs.com/mchina/archive/2013/01/03/2840040.htmlSince Portmap has been renamed in the 6 series, the 6 series needs to start with service Rpcbind startI. Introduction TO Services for NFSNFS is the abbreviation for the

1. Can be installed automatically under Ubuntu[HTML]Technology sharing technology Sharesudo apt-get install TESSERACT-OCR2. Compiling the installationA. Compilation environment: GCC gcc-c++ make (this environment is common for machines, can be

650) this.width=650; "Src=" Http://s2.51cto.com/wyfs02/M01/8A/79/wKioL1gyQCvSLzusAAczM9nHVM8126.png-wh_500x0-wm_3 -wmp_4-s_614423520.png "style=" Float:none; "title=" Lduan SCOM 2012 monitoring Linux Server (10) _ Page _01.png "alt="

From the word "Linux" to the present, a total of one months, and sitting in the old boy Linux training classroom has been nearly one months, four weeks passed, feeling every day is busy, and feel that every day will be very substantial, even if the

In order to facilitate further in-depth, we use the PRINTK () function in the driver to print "Hello World", PRINTK () is the kernel's own function, specifically for printing kernel information.When installing the driver module into the kernel, it

What is an environment variableLearn or use Linux , modify environment variables are often encountered, in the end what is the environment variable? Environment variables are features of the bash shell that store information about shell sessions and

Microsoft today pushed new updates to Skype for Linux users, and the Linux version of Skype ushered in the Alpha 1.9 version, which added support for black themes, silent notifications, and so on.650) this.width=650; "alt=" Linux version of Skype v1.

5.lvm*********************For creating an extensible disk# # 1.LVM Build # # pvs              //View physical Volume information vgs               //View physical volume group information LVs               //View Logical Volume Information

Device Mapper learning in Linux, devicemapper In linux, when you use some commands (such as nmon and iostat), you may see some devices named dm-xx. What exactly are these devices, what is the relationship with the disk? I was wondering when I didn't

Linux (13) _ vsftpd server, linux _ vsftpd   Rpm-qa | grep vsftpd Yum search vsftpd Yum install vsftpd Check whether the instance has been started: Service vsftpd status Start: Service vsftpd start   Enter the address in the

Common Linux commands (2): ipcs/ipcrm commands, ipcsipcrmIpcs 1. Command Format Ipcs [resource-option] [output-format]Ipcs [resource-option]-I id 2. command functions Provide information about the IPC Device 3. Usage Resource options: Ipcs-m view