Linux

Use of the "Dig" command:Dig is the domain name resolution tool in Linux, the function is much stronger than Nslookup, and it is very convenient to use. The use of dig under Windows system must be downloaded and installed.How to use:[Email protected]

First, IntroductionDocker is now very hot, as one of the Docker storage engine DM thin pool used more, thin-pool by a metadata device and data equipment, thin concept is on-demand data block, delete also collect data block, Increase storage space

The commonly used formats are:Tar, tar.gz (tgz), tar.bz2,In different ways, the compression and decompression of the CPU time and compression ratio is also very different.1. TarJust packaging action, equivalent to archive processing, do not compress,

A fully running Linux system consists of many subsystems (introduction, Cpu,memory,io,network, ...). ), monitoring and evaluating these subsystems is part of the performance monitoring. We often need macroscopic view of the whole system state, also

For Linux systems, the function call relationship between the general character device and the driver is shown inDescribes the process by which a user-space application invokes a program through a system call. In general, in the driver design, the

Qt reads and sets the system time in a Linux environmentThis blog link: http://blog.csdn.NET/jdh99, author: jdh, reprint please specify.Environment :Host: Fedora12Development software: QTRead system time[CPP]View PlainCopy void

The content originates from the people's post and telecommunications press "linux command Application big dictionary"Tell 729 commands, 1935 examplesLearn the Linux system's reference books, desk book, Encounter the command or command options you

Server Design technology has many, according to the protocol used to divide the TCP server and UDP server. The loop server and the concurrent server are divided by processing mode.1 cyclic server and concurrent server modelIn the network program, in

Kernel design style:Redhat,suseCore: Dynamic load kernel module in directory/boot/vmlinuz-version numberKernel:/lib/modules/"kernel version number command directory"/vmlinuz-2.6.32/lib/modules/2.6.32/Single Core: LinuxCore: KO (Kernel

About Tomcat:1.Tomcat is a software used to parse a JSP program. (JSP is a programming language, Java)2.Tomcat is a core project of the Apache Software Foundation (Apache Software Foundation) Jakarta Project, developed by Apache, Sun, and other

Ubuntu16.04 When installing Scrapy (pip install scrapy), the following error is indicated:Failed Building Wheel forCryptography Running setup.py Clean forcryptographyfailed to build Cryptographyerror:command'X86_64-LINUX-GNU-GCC'Failed with exit

The function of the Copy command is to copy the given file or directory to another file or directory, which is as powerful as the copy command under MSDOS.Syntax: CP [option] source file or directory destination file or directoryNote: This command

The most common packaging program under Linux is tar, which is often referred to as the TAR package, and the tar package file commands are usually terminated with. Tar. After the tar package is generated, you can use other programs to enter theRow

In the previous chapter, I wrote a preliminary script, and this chapter of course went on to script. Why is the title so strange? Because we are OPS personnel, we do not write programs, we are just procedures for porters. Since is the use of the

Problem:[[email protected] zx_epp_db]# free-m Total used free shared buffers cachedmem: 15953 14706 1246 0 12687-/+ buffers/cache: 1979 13973Swap: 8015 27 7988--

1, init is the system boot up after the first running process, is the system's most important daemon, the process number is always 1.2. With the boot of the machine, Init starts at run Level 0 and runs from the first level to the default run level

when we do a Linux test with VMware Workstation, the snapshot or clone, after restarting the virtual machine, will not recognize the network card, we just do the following, let LinUX automatically recognize the network card.[Email protected] rules.d]

Commands for viewing hardware device information in linux and for viewing hardware commands in linux Reprinted: http://blog.chinaunix.net/uid-26782198-id-3242120.html # Uname-a # view kernel/operating system/CPU Information# Head-n 1/etc/issue #

Delete the Ubuntu startup item in a dual-system (Windows and Ubuntu ). Problem Overview: When I learned Linux, I deleted a kernel driver of Ubuntu according to the online tutorial, which made Ubuntu unable to start. The solution I came up with was

CentOS installation MySQL-5.6.10 + Security Configuration, centosmysql-5.6.10   Note: All of the following operations are performed in the CentOS 6.5 x86_64-bit system.   # Preparations # Before installing MySQL, make sure that you have installed