Linux

Seven types of files common in Linux:-Normal fileD catalog FileL link file (point to another file, similar to its shortcut)s socket fileB-block device files, binary filesC-Character device filesP Named pipe file Linux common File system types:EXT4

1. Can not run Elasticsearch as rootSwitch to non-root userCreate a new user because the security issue elasticsearch not run directly with the root userThe first step: liunx Create a new user AddUser xxx then give the created user a password passwd

centos7.4-Construction of Zabbix monitoring systemDirectoryThe first part of the experimental environmentThe second section configures the server sideThe third part configures the controlled end (monitored server)Part IV Configure the mail alarm

Daily one Linux command 2018-03-10Linux command Cksumcksum [File]　　Today downstairs, an aunt died, not only sigh, now, really and before the same, upstairs downstairs do not know who live?　　　The Cksum command is used to check that the file's CRC is

1. Introduction to Linux partitioning 1.1 primary partition VS Extended PartitionThe hard disk partition table can store up to four partitions, but we are generally divided into two partitions, one is the primary partition (Primary partion) is an

The world is sad to end, the Octopus elder brother also retired, even the non-sincerity does not disturb in the worship diggers also suddenly a lot less. This "Linux kernel cultivation of the road" in excellence, when, China-pub has also been on

Linux Kernel RbtreeThe use of Rbtree to record asynchronous request is required for writing kernel modules, and the method of kernel Rbtree is analyzed and recorded here. This article mainly references the kernel document Rbtree.txtRbtree

Linux Setup Boot service auto start/shutdown Auto Start command 2012-02-06 15:13 [[email protected] ~]# Chkconfig--list Show services that start automatically[[email protected] ~]# chkconfig--add * * * Add boot auto-start * * * Service[[

Network Information viewSet Network address:Cat /etc/sysconfig/Network-scripts/ifcfg-eth0 You will see:DEVICE=Eth0Bootproto=StaticsHWADDR=00: 0c:29:13:d1:6f Onboot=yes Type=ethernet Ipaddr=192.168. 0.212 Netmask= 255.255. 255.0

1.13 Single-user mode    If you forget your Linux password, you can change the password in single-user mode. The premise is that we need to know the grub password (or grub has no password) and if you don't know the grub password then use rescue mode

Tagged with: ges RDO Introduction to SGI installation software body log HTML1. Introduction1.1. Official documents:Stand-alone: https://docs.openstack.org/keystone/pike/install/keystone-install-rdo.htmlCluster:

Monitoring IO PerformanceIntroductionThe Iostat is primarily used to monitor the IO load on the system device, iostat the statistics from the start of the system startup when the first run, and then running Iostat displays statistics from the last

Linux system administrator Prerequisites:Linux System Administration Toolkit Series Rollup Linux system administrator must seeVandyke SecureCRT 6.1.3 Attached special documentsBird Brother's Linux private Cuisine Basic Study (second edition)HD PDF

Source: http://www.zkbhj.com/articles/?id=3863We can install the Composer through the Composer image, before you make sure that PHP is already installed on your machine and that you can execute commands via PHP. If you have a full path to execute

steps for Linux to install python3.6 and third-party libraries:My Linux is the CentOS 6.5 versionLinux most of the system default comes with python2.x version, the most common is python2.6 or python2.7, the default Python is a lot of system programs

Image formats supported by OpenCV Currently, OpenCV supports the following image formats: Windows bitmap files-BMP, DIB; JPEG file-JPEG, JPG, JPE; Portable Network image-PNG; Portable image formats-PBM, PGM, and PPM; Sun rasters-SR, RAS;

Use of the vim editor in linux and the vim editor in linux Vi or vim editor is an indispensable editor. There are many editors available on windows, such as notepad, notepad ++, and edit, But in linux, it is basically vi or vim. vim is bigger than

Install VNC on centos 7 and vnc on centos 7 Install GNOMEYum groupinstall GNOME Desktop Install VNC-ServerSudo yum install tigervnc-server Copy the VNC-Server configuration file to the systemd system.Cp/lib/systemd/system/vncserver @.

Seven file types, file attributes and viewing methods in Linux, and seven file types in linux1. Seven file types Common file typeThe most common file types in Linux include plain text files (ASCII), binary files (binary), data files (data), and

Liunx basic Optimization Configuration and liunx Optimization Configuration1: add operation users to the system and grant sudo Permissions [Root @ localhost ~] # Groupadd cai [root @ localhost ~] # Useradd cai-g cai [root @ localhost ~] # Passwd cai