Linux

Virtual Machine A? ? 1. Set the firewall state to trusted? 2.SELinux currently modified to permissive? 3.SELinux permanent status modified to permissive? ? 4. Clear the Yum cache to check if Yum is available? ? Virtual Machine B? ? 1. Set the

Two virtual machines, both fire and hostname modifiedThe firewall modifies the original----------public state---------to-------trusted stateVirtual Machine Server0:# Firewall-cmd--set-default-zone=trusted?# echo server0.example.com?>?/etc/hostname#

???/etc:linux System Configuration FileConfigure the following static address parameters for the virtual machine server– Host Name: server0.example.com? ? – IP Address: 172.25.0.11???? – Subnet Mask: 255.255.255.0– Default gateway:

A brief introduction to the basic concepts of memory management and the allocation of memory mechanisms on Linux.1 Basic Concepts1.1 Address*) Logical address: Refers to the part of the offset address generated by the program associated with the

Outline:I. Common Distributed File SystemIi. Basic principles of MogileFSThird, the realization of mogilefsIv. Basic principles of FastdfsFive, the realization of FASTDFSVi. comparison of MogileFS and FastdfsData storage is an eternal topic, from

I. Introduction of HTOPThis is htop, a interactive process viewer for Linux. It is a text-mode application (for console or X terminals) and requires ncurses.Comparison between Htop and top In ' htop ' can scroll the list vertically and

Main purpose/boot storage System boot required files, including kernel, boot configuration/bin,/sbin store various command programs/dev stores various device files such as hard disk, keyboard, mouse, optical drive, etc./etc store configuration files

Stat Command : Detailed information of file/file system is displayed;use format : Stat file nameThe stat command is primarily used to display detailed information about a file or file system, which has the following syntax:-F does not display

Sometimes we need to send the SSH command to the server in bulk, but it is possible that some of the servers are newly added, and we have not configured SSH encryption, this time will prompt us to enter yes/no or password, etc., expect script

First step: Download Ruijie client linux version, download URL is http://ncc.hust.edu.cn/cyxz/rzkhd.htmStep Two: Unpack the package, CD into the folder, open the terminalStep Three: Enter commands./rjsupplicant.sh-u number-p password-D 1Where-D

Grasping Writer: Li Pengju No.: 20179203 ( original Works reproduced please specify the source ) (Study course: "Linux kernel Analysis" MOOC course http://mooc.study.163.com/course/USTC-1000029000) First, the

Two virtual machines, both fire and hostname modifiedVirtual Machine Server0:# Firewall-cmd--set-default-zone=trusted# echo server0.example.com >/etc/hostname# Cat/etc/hostnameVirtual Machine desktop0:# Firewall-cmd--set-default-zone=trusted# echo

After installing ZSH, the default startup execution script becomes ~/.ZSHRC.Workaround:Mac:Modify the ~/.ZSHRC file to add: Source ~/.bash_profile, source ~/.BASHRC; Note: Under Mac there will be a. zlogin file, which is the first to start, and then

1, cd command This is a very basic, is also a common need to use the command, it is used to switch the current directory, its parameters are to switch to the path of the directory, can be an absolute path, can also be a relative path. Such

transferred from: http://blog.csdn.net/shenshendeai/article/details/49794699 Export Command Feature Description: Sets or displays environment variables.syntax:export [-fnp][variable name]=[variable setting value]Additional Note: when executing a

1. Buffer and CacheThe free command provides a more concise view of system memory usage relative to top:[[email protected] ~]$ free-m--in megabytesTotal used free shared buffers Cachedmem:32109 30133 1975 0 472 16881-/+ buffers/cache:12780 19328swap:

When executing some programs in Linux, these programs must first authenticate the user who initiated it before executing, such as login, su , etc.The authentication procedure for identity or status in Linux is performed by Pam ,Pam(pluggable

# #: Text Processing tool 650) this.width=650; "src=" Http://img.baidu.com/hi/jx2/j_0011.gif "alt=" J_0011.gif "/>File View method:Cat-n Display add line number, empty line also add line number-B Displays the add line number, but the blank line does

Environment: Server CentOS6.6 + git (version 1.7.1)Client Windows10 + git (version 2.8.4.windows.1)① Installing GitLinux as a server-side system, Windows as a client system, install Git separatelyServer-side:#yum install-y gitWhen you're done

Centos6.5 yum install redis, centos6.5yumredis 1. Add an epel source to yum Yum install epel-release2. Install yum Yum install redis3. Redis server configuration -- cocould not connect to Redis at 127.0.0.1: 6379: Connection refused