Linux

this week is about MySQL's binary format installation, we generally have two ways to install MySQL, one is through Yum installation, the second is the installation in binary format, the first method of Yum installation is very simple, as

Unit eighthFirst, SYSTEMDSystem initialization program, the first process that the system starts, the PID is 1Diagram: SYSTEMD System initial Program650) this.width=650; "Src=" https://s1.51cto.com/wyfs02/M00/A6/DE/wKioL1ncxD7hCXEiAAFOnMthqrQ236.png-

Workaround:In the directory where the virtual machine is located, locate the *.vxm file and add a line at the end:" e1000 "This replicated virtual machine only provides a virtual hard disk. vmxd file, with no perfect match for your newly created

################# # Fifth Unit # # # #################################### # # #一. User Understanding # # ###################*) The user is the identity of the system users*) in the system the user is stored as a number of channeling characters +

First, prepareIf you do not have a CentOS environment installed, refer to the previous two articles>, >JDK version: jdk-7u75-linux-x64.tar.gzSecond, stepPrior to installing the 163yum source, will default to bring the JDK, the first to remove the

I. Related to Yum1./var/log/yum.log records all Yum Records, which can be used to find out when to load/unload/update which packages.2. Yum Source configuration: The configuration of the Yum source is generally two ways, one is to configure the

First, prepareNginx version: nginx-1.7.7.tar.gz please download the corresponding version on your own website.Second, step? Create a new Queenlove user on Linux[Email protected]/]# useradd queenlove-d/queenloveTo set a new user password, the

command to enter VIVI FileName: Opens or creates a new document and places the cursor at the beginning of the first lineVI +n FileName: Opens the document and places the cursor at the beginning of nthVI + FileName: Opens the document and places the

You need to look at the boot log under Tomcat when there is a problem with the project on the general server, as follows:1.win+r Enter MSTSC in run login to Linux with Telnet client2. Open the SSH Secure Shell Client3. Find the project's

Reference:http://www.cnblogs.com/emanlee/p/3587571.html# total number of cores = number of physical CPUs X number of cores per physical CPU# Total Logical CPUs = number of physical CPUs x number of cores per physical CPU X number of hyper-threads#

Restrict user or use of group disk spaceInstalling the Quote Package[email protected] ~]# Yum Install quotaFormat disk[[email protected] ~]# mkfs.ext4 /dev/sdcmke2fs 1.41.12  (17-May-2010)/DEV/SDC  is entire device, not just one partition! to

One, download the JDK's compression packageJdk-8u144-linux-x64.tar.gzSecond, unpack the compressed packageMkdir-p/user/local/javaCd/user/local/javaTAR-XVF jdk-8u144-linux-x64.tar.gzThird, modify the/etc/profile fileVi/etc/profileAdd the following to

Search files are very useful, we often need to know where a file is stored, and we know that Linux is a powerful command system, so there are a lot of very good search commands. Often find is not used, because it is slow and consumes hard disk space.

1: Commands for common directories:LS: List directoryCD: Switch directoriesPWD: Displays the current directorymkdir: Create a new directoryRmDir: Delete an empty directoryCP: Copying Files or directoriesRM: Remove files or directoriesMan [command]

Add User Group Command GroupaddSyntax: Groupadd [-G GID] [-r] Group_name-G: Specify user group ID-r: Specify user group as System user groupExample:[[email protected] ~]# groupadd testgrp[[email protected] ~]# grep

in the virtual machine directory Vagrantfile files are vagrant configuration files, if you want to use the virtual machine as a server, you can access through IP, you need to modify the configuration file configuration.(1) First step: Open the

1) using SEDRemove the carriage return under Windows (Note that ^m is written under Linux, press ^m is the carriage return newline character, the input method is to press CTRL + V, Loosen v., press M)Sed-i ' s/^m//g ' filename2) similar under VIM:%s/

When google_chrome is started in ubuntu, the following error occurs: FATAL: nss_util.cc (632)] NSS_VersionCheck ("3.26") failed. NSS> = 3.26 is required. Please upgrade to the latest NSS, I. background: Jello @ jello :~ $ Lsb_release-No LSB

First day of centos 7 basic learning and first day of centos 7 basic learningLinux is an operating system; smartphones, Android, ios, and Windows; websites, games, QQ, and so on are all applications running on the Linux system; clients and servers

Inotify + rsync, inotifyrsync Linux Kernel has introduced the inotify mechanism since 2.6.13. With the secure fity mechanism, you can monitor changes in the file system, such as file creation, deletion, and modification, and promptly notify the