Linux

Operating system consists of-kernel-hardware-command interpreter programDevelopment History of Linux1969 Unix Born in Bell Labs1977 Unix was born a more important branch BSD system, since then the major manufacturers began to develop UNIX billing

For CentOS, for example, there is no C language and C + + compilation environment, need to install manually, the simplest is to use Yum installation, the process is as follows:1. Installing GCCYum Install GCCAsk if, press Y to enter, orYum-y Install

Tag: Install the virtual machine operating system.I. The beginning of study1. Give yourself a position (your position, where to go in the future, set a goal for yourself)Two. ConventionsUsing CentOS 7.4, VMware Workstation Pro 14, Xshell, Baidu

12.21 PHP-FPM's Pool Requirements background:Suppose Nginx has multiple sites, each with its own pool, so that when a site has a problem (such as a 502 error), other sites are unaffected. The following is an example of setting up [www] and

Common commandsIptables-l-N view firewall rules;Iptables-f to clear all rule chains in the preset table filterIptables-x Clear Preset table rules in user-defined chains in filter/etc/rc.d/init.d/iptables save to write the changes to

Linux Network relatedIfconfig View the IP of the NIC (yum install net-tools)Ifup Ens33/ifdown Ens33 to start and close the NICSet the virtual NIC Ens33:1The place to change is IP and name, and then reboot.If you cannot add a backslash to the colon

Six week fourth session (March 15)ReviewExtendedPrint the contents of a row to a line http://ask.apelearn.com/question/559Print content by keyword, #sed-n '/\[abcd\]/,/\[rty\]/' p testPrint content by number of lines,# sed-n ' 4,8 ' P testsed

Installation and partitioningTwo Ubuntu were installed on the virtual box on OS X and WIN10.Installation and simple shell commands do not say, no big gains.There was a problem in the middle because deft on hand did not allocate enough memory to the

, download resources Download link: http://mirrors.sohu.com/centos/7.4.1708/isos/x86_64/CentOS-7-x86_64-DVD-1708.isoTwo1. Install CentOS 7, select Install later, click Next2. Select the operating system and version3. Select a network type4. Select

One, create a new disk as swap1. If the system itself has swap, stop swap# swapoff-a2. Create a new disk partition using FDISK, or the parted tool3. Format Swap# MKSWAP/DEV/SDC14. Start a new swap# SWAPON/DEV/SDC15. Add to System Auto mount# Vim/etc/

Note: Almost all device structures contain the structure of "Strcut kobject kobj" and "Srtuct list_head list".struct Kobject kobj:This structure is used to build the model of Linux device driver model.struct List_head{struct List_head

Weblogic silent domain creation, weblogic silent Create a domain Directory: mkdir-p/home/weblogic/Oracle/Middleware/user_projects/domains/base_domain/ Create a file: create_domain.rsp read template from

The meaning of the file color in Linux, and the meaning of the linux color Color Description Red Compressing a file or package Blue Directory files Light blue Link file

Basic usage of vi/vim in ubuntu, ubuntuvim1 Overview Vim is a text editor. Code Completion, compilation, error jump, and other convenient programming functions are particularly rich and widely used by programmers. The following describes some

Ssh password-free login, ssh password login Ssh password-free Login Note: Ssh password-less logon requires the public key and private key. In linux or mac systems, you can use ssh-keygen to generate public/private key pairs.   1. Generate a

L04-Linux CentOS7 network configuration (can be connected to the Internet), l04-linuxcentos7 Although the system demonstrated here is CentOS7, it is also applicable in RHEL6.5, RHEL7, and CentOS6.5.   1.Tool: virtualbox, virtual machine: CentOS7   2.

Role of systemd In the morning, the group discussed the role of systemd, which also led to a person's direct withdrawal from the group. In the spirit of seeking knowledge, he searched for some systemd and made some corresponding sorting;I. The birth

CentOS6 and CentOS7 install jumpserver and centos6jumpserver1.1 jumpserver Installation Synchronization time: ntpdate ntp1.aliyun.com Disable selinux Disable Firewall System font changed to English1.1.1 install dependencies (the epel source is

In Ubuntu, the command line is used to create (delete) files (folders ).In many cases, we create and delete files/folders on the terminal. Press ctrl + alt + t to open the terminal: Create File: touch a.txt create Folder: mkdir NewFolder delete file:

C Language exercises in Linux: pointers for mystrcmp, mystrlen, and mystrcmpmystrlen C Language exercises in Linux: pointers for mystrcmp and mystrlen # Include # Include Char * mystrcmp (char * str, char * str1) {while (* (str ++)-*