Linux op Wi Zhilu first Summary and extension

Linux Small file Transfer---50M or lessUse SECURECRT's own transport features:1, install Lrzsz in Linux system, install command: yum–y install Lrzsz2. When the installation is complete, enter the command rz–bey the File Transfer dialog box will pop

Linux Network Management commands

This article mainly introduces Linux under the network view, configuration of the basic command: Ifconfig, IP, route, and then the introduction of the DNS, host name and other information configuration!1. Network Interface type:Lo: Local loopback

Linux command notes

CD: Transfer directorycd/a/b (transfer current directory to/a/b)Cat: Commands are commands for viewing the contents of the Ubuntu Chinese text fileCat/etc/shadow View All UsersThe cat/proc/cpuinfo is used to view the computer's CPU

Linux system startup process

In the following order, we will briefly say the Linux system start-up process, this is for CentOS6 First, POST First of all, we also call the power-on self-test, when we press the powered on, the motherboard chip will be composed of the first to

Linux operation and Maintenance Network Foundation

I. Definition of computer networkWhat is a network?A group of computer systems with independent functions are interconnected by communication devices and transmission media, and the whole system of resource sharing and information exchange is

Linux NIC Advanced Management

Command Mii-tools to view NIC statusMii-tools eth0Command ethtool command to view network card settings:Ethtool eth0 view Nic Physical propertiesEthtool-i eth0 viewing NIC driver informationEthtool-s eth0 View NIC statusIP aliases:Linux supports the

A detailed description of the top ten skills that Linux OPS engineers should have

Linux system if the study can choose Redhat or CentOS, especially CentOS in the enterprise use the most, of course, there will be other versions, but learners still learn in these 2 versions of the line, because these two versions are brothers, no

Linux log system learning!!!

SYSLOGD configuration file is/etc/syslog.conf, this profile records what service at what level need to record where!!!Service:The syslog itself sets up some services: The syslog itself has some services that you can use to store system

Simple scripts for Linux beginners----match legitimate IP

#!/bin/bash# author: tianzhaogao  (e-mail: [email protected]) #ip .txt  IP file to match # okip.txt  matches the legitimate iprm -rf /root/test/okip.txt     #初始化touch  /root/test/ okip.txt      #初始化ip =$ (cat ip.txt | grep  "^[0-9]\{1,3\}\.[ 0-9]\{0,

Linux UDP,TCP related features

For a long time did not use the network programming forgot almost, wrote the TCP,UDP test code, draws the following conclusion:One: UDP feature1. UDP sendto function Regardless of the existence of the end (even if the original existence, now closed),

Linux LVM learning Summary-delete a physical volume

Linux LVM learning Summary-delete a physical volumeThis article describes the commands vgreduce and pvremove in LVM management. As a matter of fact, the previous articles have been mentioned and involved. Vgreduce: removes physical volumes from an

RHEL 6.6 install GNOME on the desktop

RHEL 6.6 install GNOME on the desktopTo install the desktop system environment on the Red Hat Enterprise Linux Server release 6.6, select GNOME desktop environment for installation. I. Check the system running level and whether the desktop

How to upgrade Ubuntu to Linux Kernel 4.2

How to upgrade Ubuntu to Linux Kernel 4.2Linux Kernel 4.2 has been officially released for nearly a week. At the time of its release, we had some introduction to Kernel 4.2, in addition, Linus Torvalds also describes Bug fixes and Development

Summary of at and cron periodic task plans in linux

Summary of at and cron periodic task plans in linuxOne-time task plan: at, batch periodic Task Plan: cronat: simple usage at TIMEat> submit task: ^ c + d job result: send mail to the current user on the system for sending and receiving: run the

Install ubuntu Chinese Input Method

Install ubuntu Chinese Input MethodI had a great deal of pleasure with the JS program. I was very excited. I wanted to write a blog, take notes, forget my blog account, and then I wanted to write it after I retrieved it through my mailbox .. I found

Install JDK in Ubuntu 15.04 and configure it as the default JDK

Install JDK in Ubuntu 15.04 and configure it as the default JDKInstall JDK in Ubuntu System Version: Ubuntu 15.04x64JDK: jdk-8u60-linux-x64 1. view the number of system digits. Enter the following command. getconf LONG_BIT 2.download the

Lucene five-minute tutorial

Lucene five-minute tutorial UPDATE: The following code uses Lucene 4.0! Lucene greatly simplifies full-text search in applications. But Lucene is actually very simple. I can show you how to use Lucene within five minutes.1. Create an index For

Configure MFS distributed architecture cluster in Linux

Configure MFS distributed architecture cluster in Linux With the continuous development of distributed and big data, we often feel that big data is far away from us. What is big data in our minds? distributed, fault-tolerant, and large capacity? In

Load Balancing for Tomcat clusters based on Apache

Load Balancing for Tomcat clusters based on Apache Overview Tomcat is a fully functional HTTP server that can independently receive client requests, process requests, and encapsulate response packets to the client. However, the concurrent response

About TCP connection establishment and Termination

About TCP connection establishment and Termination 0. Preface Recently, when dealing with the company's legacy projects, I found that I didn't understand the TCP protocol at all, so I made up some content about the establishment and termination of

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