Linux

Linux system boot:BIOS--Mbr:boot Code---boot-GRUB--load kernel---perform init-to-runlevelBiosThe BIOS is responsible for checking the hardware and finding the bootable device, which can be defined in the BIOSMbrMBR is responsible for executing the

This file is a record of how the GID corresponds to the group name./etc/group content is a bit like this:[Email protected] ~]# head-n 4/etc/groupRoot:x:0:rootBin:x:1:root,bin,daemonDaemon:x:2:root,bin,daemonSys:x:3:root,bin,admEach row of this file

About this small operation, tangled for a long time, just beginning is two steps away:ssh-keygen-t RSA three times enter to generate a key pairssh-copy-id-i/root/.ssh/id_rsa.pub 1.1.1.1 callback public key to the server that requires SSHLater found

To install or upgrade the PIP, you need to download get-pip.py. Address: https://bootstrap.pypa.io/get-pip.py]# wget https://bootstrap.pypa.io/get-pip.py]#/usr/local/python/bin/python2 get-pip.pyPython is installed for its own source code

/ETC/PASSWD file StructureThe structure of this file is this: Each line represents an account, and a few lines represent a few accounts in your system! However, it is important to note that the multi-account inside of the system is the normal

1. View Log common commands tail:-n is the display line number, equivalent to the NL command; examples are as follows:tail-100f Test.log Real-time monitoring of 100 rows of logsTail-n test.log query log at the end of the last 10 lines;Tail-n +10

Use Login to viewW View the user's login information 1 minutes 5 minutes 15 minutes ago Average loadTty1 with table native terminalpts/0 with table remote terminalUser: Username for loginTTY: Login TerminalFrom: Which IP address to log in from[Email

Simple Article ~ ~ ~ The big God see there is an incorrect place in time to correct my brother ~ ~ ~ in this embrace thanked!The directory structure presented here is based on the CentOS 6.8 system ~Root directory:/Bin directory: Stores commands

Installation EnvironmentLinux (Ubuntu Edition)JDK InstallationTar.gz is the version that can be used after decompression, here I will use jdk-8u65-linux-x64.tar.gz version, install to/usr/java/Step OneMove the file jdk-8u65-linux-x64.gz to/usr/java/,

The reason for creating a Linux logical volume is that you can increase the expansion disk at any time1. Select "Create custom Partition" when partitioning650) this.width=650; "src=" http://www.linuxidc.com/upload/2013_10/131015153569531.jpg "width="

To copy a file or directory command:To copy a file:(1) Copy Local files to remoteSCP filename User name @ computer IP or computer name: remote pathLocal 192.168.1.8 Clientscp/root/install.* [email protected]:/USR/LOCAL/SRC(2) Copy files back to

configuration file and execution order:1>/etc/profile, System level, will call/ETC/BASH.BASHRC2>/etc/enviroment, System level, setting system-level environment variables3> ~/.profile, user-level4> ~/.BASHRC, User level5> ~/.bash_profile or

Linux operating system usually use a little, senior test and development students use more, like me a person, only like the Windows operating system. But the Linux operating system has been used for some time,Know some basic commands, if you do not

Before the query port is occupied has not understood, asked a lot of people, finally understand, now summed up:1.NETSTAT-ANP |grep Port numberAs below, I take 3306 as an example, NETSTAT-ANP |grep 3306 (here note, I am a normal user operation, so

To undertake the above. In 1985, Richard Stallman established GNU (GNU Not-is UNIX), because Richard believed that software should be free to circulate, advocating software should be the wealth of all mankind, so Richard founded the GNU to

My transport and DBAs usually use the following:Set pasteSet Shortmess=atiSyntax enableSyntax onSet AISet rulerSet AutoindentSet nocompatibleSet MagicSet confirmSet history=1000Set CursorlineHighlight Comment Ctermfg=lightblue Guifg=darkblueSet

Reference: http://www.linuxidc.com/Linux/2015-08/121352.htmwget https://www.python.org/ftp/python/3.5.4/Python-3.5.4.tgzTar zxvf python-3.5.4.tgzCD Python-3.5.4./configure--prefix=/usr/localMake && make AltinstallFatal Python

CentOS installation uses vnc for Remote Desktop login, centosvnc The following describes how to install vncserver in CentOS 7 and log on with vnc-viewer (with root permission ): 1. Run the command yum install tigervnc-server to install vncserver; 2.

Linux Server Firewall White List settings, linux Server Firewall Linux Server Firewall White List settings Recently, the company has strict network security requirements and requires that the firewall be enabled. However, there are five or six

System configuration commands and configuration commands 1. view the host serial number # Dmidecode-t 1 System InformationManufacturer: IBMProduct Name: System x3650 M3-[7945I01]-Version: 00Serial Number: 99B0340UUID: E5248D38-72C3-11DF-80F7-E41F1365