Linux

First, check the network card MAC address#安装lshw[email protected] ~]# Yum install LSHW#使用方法[[email protected] ~]# lshw-c network *-network:0 description:ethernet Interface Produc T:netxtreme II BCM5709 Gigabit Ethernet vendor:broadcom Limited

The dig command is primarily used to query host address information from a DNS domain name server.querying DNS information for a single domain nameThe most typical use of the dig command is to query the information of a single host.$ dig

In this case, when viewing the log location issue, log is transferred locally, then open the file with the local text Editing tool, then look for the keyword and then analyze it. This will undoubtedly reduce efficiency.Several commonly used commands

In a Linux system, the kernel allocates an Inode (index node) for each newly created file, each with a unique inode number. The file attributes are stored in the index node, and the index nodes are copied to the file when they are accessed, enabling

During system maintenance, it may be necessary to review the CPU usage at any time, and to analyze the system condition according to the corresponding information. In CentOS, you can view CPU usage by using the top command. After running the top

Scene:When the company asks to uninstall the software, it also contains all the files in a directory. Then go to modify the shell script to delete files, add the deletion of files and folders command (of course, under the root permission)such as: rm-

In the Xilinx ZYNQ 7000 platform, using UDP to send 1 bytes or 2 bytes of data, checksum is the error value of 0xFFFF, the receiver can not normally receive the data sent by the ZYNQ7000 platform, I have found the solution to the problem, have the

BASH: Procedural programming, in order to accomplish more complex tasks, support sequential execution, select execution, loop executionSequential execution: From left to right, execute command sequentially.Select Execute: Select to execute a

1. What is idle?Simply put, idle is a process with a PID number of 0. Its predecessor was the first process created by the system. is also the only process that has not been produced by fork ().In an SMP system, each processor unit has a separate

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Starting with a detailed system of learning Linux common commands, adhere to a daily command, so this series is a Linux command per day. The main references for learning are:1. "Brother Bird's Linux private cuisine"2.http://codingstandards.iteye.com/

In the process of starting to access ES encountered a variety of wonderful problems.1. On-line various versions of the start-up mode is confusing to know how to start. Simple and rude--execute directly in the bin directory of

Files in addition to the general permissions R, W, X also have some special permissions, S and T permissions, the specific use of the following　　1 SetUIDWhen s this flag appears on the file owner's X-permission, such as/USR/BIN/PASSWD,[Email

CentOS 7 Open Port and centos Open Port After CentOS is upgraded to 7, iptables cannot be used to control the Linuxs port, because CentOS 7 uses firewalld instead of the original iptables. The following describes how to use firewalld to open a

Installation of Virtual Machine VMware and Virtual Machine VMware What is virtual software: Virtual software allows you to run two or more Windows, LINUX, and other systems simultaneously on one machine. It can simulate a standard PC environment.

Linux ls command tutorial, how to use the ls command, all the tricks teach you, linuxls Linux ls command usage After learning linux for so long, the most common commands are ls commands. Today I will summarize the usage and experience of ls commands.

SHELL script strategy (learning notes) -- 1.5 bash environment configuration process, -- 1.5 bash From the perspective of user login, shell is divided into two types: Logon shell: If you log on through a terminal, use the su-username command to

Diagnosis case of mail sending failure in Linux SendMail (4): sendmail mail Recently, I encountered another case where SendMail failed to send an email in Linux. After the email is sent, the email cannot receive the specific email. Check the log/var/

Create/clone a VM (configuration) and clone a VMI am a lazy new to linux, so that I can easily organize my articles.1. Create a VMModify the Host Name (as you can remember)Run the following command: vi/etc/sysconfig/network: | -- I (modify) | -- esc

Vim editor learning notes and vim learning notes There are many text editors that can run in Linux. Different Linux distributions will certainly have built-in Vi editors, and other editors may not have built-in ones. You need to install them on your