Linux

Please prepare three Linux machines for A,b,c, and ask for the following:1, with their own name of the user to complete a key to open more lock (A, key, B,c lock) password-Free login deployment ScenarioThe use of the problem in the production

One: Putty download1: Look for two places a. Download Putty B. Chiark greenend2: Download the 32-bit zip package, which is a toolkit collection, not just a terminal toolTwo: Putty settings1.hostname: Access the server's IP, the right port depends on

How Linux uses commands to view a few lines of a log file (middle or last lines)How Linux displays a few lines of a file (in the middle of a few lines)"One" starts at line No. 3000 and displays 1000 rows. The 3000~3999 line is displayedCat FileName |

One, the Linux system's task planThe crontab command is used to submit and manage the tasks that the user needs to perform periodically, similar to scheduled tasks under Windows, when the operating system is installed, the Service tool is installed

If we forget the root user's password in the production environment, there are two methods under Linux, the first one is single-user mode, which is similar to the security mode of Windows when the system starts.The method is to restart Linux first, (

Detailed description of Linux directories and each directory"Common Directory description" Directory /bin Storing binary executables (ls,cat,mkdir, etc.), commonly used commands are usually here. /

Linux operation and Maintenance managementA W command to view the current system loadUse the following[[email protected] ~]# w 15:15:19 up 2 min, 1 user, load average: 0.05, 0.08, 0.04USER TTY FROM [email protected] IDLE

Today, I encountered a problem that vcenter6.0 forgot the root password. The reason could be 1. The engineers who deployed the VMware virtualization device were forgotten and did not have the proper custody and handover. 2. Google search users

Multi-instance setup for NginxLet's start with a description of the parameters appended to the Nginx-S back plus reload is the same effect that reloading means and Apache graceful-V Lowercase v Displays the version number after exiting-V-Uppercase

Environment:Linux Server one (dual NIC)Intranet ip:192.168.80.180External network ip:192.168.90.180Linux client one, IP address: 192.168.80.10Win7 client One, IP address: 192.168.90.10Ensure network interoperability between server and two

[Data Recovery failure description]A Linux Web server, DELL R200, manages about 50 websites, using a single SATA 160GB HDD. A sudden outage in normal use, the attempt to start again failed to remove the hard drive detects the presence of about 100

Use of the Vim editor in Linux and the linuxvim Editor NAMEVim-Vi IMproved, a programmers text editor # vi improvement, a program text editor1. How to move the cursor Ctrl + f Move one page down 0 (number 0) Move to

How to view CPU configuration information in Linux, and how to view cpu configuration in linux Enter the command: cat/proc/cpuinfo Check the number of physical IDs in the output result. If 0 is displayed, there is only one physical cpu; Check the

Linux batch User Creation and deletion tutorials, linux User Creation tutorials Create users in batches as follows: First, you need to create a xxx.txt file and write the user you want to create in this text. Note: each user writes a line break.

Build a scala environment in linux and write a simple scala Program (Code tutorial), linuxscala Installing the scala environment in linux is very simple. If it is a ubuntu environment, it will be simpler. You can directly use apt-get to solve the

Centos7 zookeeper single-host/cluster installation and startup, centos7zookeeper ZooKeeper is a distributed, open-source distributed application Coordination Service. It is an open-source implementation of Google's Chubby and an important component

Set up Git server details and set up git details In the remote warehouse section, we talked about the fact that the remote warehouse is no different from the local warehouse. It is purely for 7x24 boot and everyone's modifications are

Vim command Summary: vim command I recently started to use Linux. Now I want to summarize the vim command from a beginner's perspective.Four Vim Modes 1. Start Vim   1. Double-click the desktop icon to start Vim (GUI) 2. In the Start Menu, click Run

Build pptp quick installation script on Centos7 and build pptp on centos7 Build pptp quick installation script on Centos7 CentOS7-pptp-host1plus.sh #!/bin/bash# Setup Simple PPTP VPN server for CentOS 7 on Host1plus# Copyright (C) 2015-2016

Common service name and port number, name port number Port name port number/protocol alias Ftp 21/tcp Telnet 23/tcp Smtp 25/tcp mail Nicename 43/tcp whois   Domain 53/tcp nameserver   Domain 53/udp nameserver   Finger 79/tcp Http 80/tcp