Linux

First, we need to simulate the environment and use VMware to add a 300G (actually 200m~~ manual funny-_-) hard drive device to me. Follow the steps step by step to add just fine. You will need to restart your virtual machine after the addition is

First, download MySQLMkdir/home/install #创建install目录Download mysql5.7 in the/home/install directorywget https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-5.7.23-linux-glibc2.12-x86_64.tar.gz　　Download complete　　Second, extract

The steps to add a hard drive to a virtual machine are a little more nonsense, mainly listing a few detailed steps to set up after adding a hard drive:1. View disk information : Fdisk-lsBefore adding as shown:After adding as:can also be used: ls/dev/

# # # #企业网络安装 # #Purpose: Deploy servers in bulkShare files over the network via TFTPOn the server side:To install and configure a DHCP configuration fileSystemctl Stop Firewalld # #特别重要, turn it off.Yum Install

Maximum number of files openedThe maximum file descriptor (the maximum number of files that can be opened at the same time) that can be opened by the system, up to 65535, can be tuned on demand.View the maximum number of file descriptors that the

I. Disk Management partitions establishing file system mounts setting up disk quotas using logical volumes to establish disk arraysfdisk-l viewing disk informationdf-th View the directory of the hard disk/dev/sdb/20g 1. File Type IntroductionExt4

1. is a process of data communication: TCP three-time handshake. TCP data transfer. Four disconnects for TCPSYN: (Synchronous sequence number, Synchronize Sequence Numbers) This flag is valid only when the three handshake is established. Represents

What is wget? ? Wget in the original help in English speaking is: the Non-interactive network downloader, non-interactive Web downloader. It supports protocols such as HTTP, HTTPS, FTP, and also supports HTTP proxy-based downloads. Other key

system Start-up refers to the whole process of power-up from the computer to display the user's login prompt. We will be here to discuss the whole process and some of the related content . The process can be divided into two stages: loading the

Steps:1. Install the JDK first under Linux;2. Download the apache-jmeter-4.0.tgz and copy to the/OPT directory in the Linux system;3. Unzip APACHE-JMETER-4.0.TGZ:TAR-ZXVF apache-jmeter-4.0.tgz4. Configure the JMeter environment variable:

1.NFS Introduction NFS (Network File System)即网络文件系统。由Sun公司开发，于1984年向外公布。功能是通过网络让不同的机器、不同的操作系统能够彼此分享个别的数据，让应用程序在客户端通过网络访问位于服务器磁盘中的数据，是在类Unix系统间实现磁盘文件共享的一种方法。 nfs适用于Linux与Unix之间实现文件共享，不能实现Linux与Windows间的文件共享功能

This digest from: https://www.cnblogs.com/longshiyVip/p/4890181.htmlTo monitor and control the process, you must first understand the current process, that is, you need to see the current process, and the PS command (ProcessStatus) is the most basic

Enter root modesu Rootreturn normal mode su user nameSudo-i This method to enter the password of the current administrator user can be entered into the root usersudo passwd rootsudo passwd1. Important several hotkeys [Tab],[ctrl]-c, [ctrl]-d [Tab]

1, the firewall shallow solutionThe biggest advantage of iptables is that stateful firewalls can be configured, and firewalls with connection tracking are known as stateful firewalls, which are more secure than non-stateful firewalls because of the

RPM is an abbreviation for the Red-hat Package Manager (RPM packages Manager)The naming rules for RPM:The first part is the name of the RPM package, the second part is the version number, the third part is the release number of the version, part IV

1. Check the first n rows of the log:　　Cat file name | Number of Head-nDemoCat Test.log | Head-n 200 # View Test.log Top 200 lines2. Look at the end of the log n rows :　　Cat file name | Number of Tail-nDemoCat Test.log | Tail-n 200 # View Test.log

1. Use the fdisk-l command to view the disks that can be partitioned2. Partitioning using the parted commandParted/dev/sdb3. Create a partitioned tableMklabelDisk type Select GPT, warning Select Yes to erase disk original information4. Use the Print

For the server, File-max, ulimit all need to set up, or there may be a file descriptor exhaustion problem, in order to make the machine after the restart is still valid, strongly established as the following configuration to ensure that the File-max,

Linux firewall iptables (iii)Our previous two articles have introduced iptables more fully, today a iptables on layer 7 practice. We said that Iptables/netfilter work in the kernel space is not support application layer protocol, but such as QQ, MSN,

Basic conceptsThis article describes several common concepts of Linux in a personal perspective:Why can't programs on Windows run on Linux?What the heck is the programmer doing?System Library-based programming and API-based programmingShared