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- Detailed tutorial: Step-by-step guide for installing an operating system on a virtual machine
- Installation process 1. Create a virtual machine 2. Select the typical recommended configuration and click Next 3. Select to install the operating system later, then click Next 4. Select the operating system, select the version, and then select Next 5. Name the virtual machine (The name displayed on the side of the vm), select the installation location, and then click Next 6. Set the size of the virtual machine C drive. Install win7 on the Linux system and select the default configuration (if you want to improve the performance of the C drive, you can select "Replace the virtual machine C drive". "Save the disk as a single file"), then click Next 7. Display the previous settings summary, click Finish 8. Select the virtual machine, click Edit virtual machine settings, and set up the virtual machine 9. Memory settings can be based on the size of your laptop's video memory Make settings, the default is 1G10, setting processing
- LINUX 1027 2024-07-29 09:29:30
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- DirectAdmin panel ID and IP address replacement solution
- Log in to the DirectAdmin server#cd/usr/local/directadmin/scripts#./getLicense.sh735312345#servicedirectadminrestart where 7353 is the customer ID and 12345 is the authorization ID. If your server has multiple different IPs, you can forcefully specify an IP authorization such as: 10.200 .200.26#cd/usr/local/directadmin/scripts#./getLicense.sh735312345127.0.0.1#servicedirectadmin
- LINUX 1004 2024-07-29 09:08:43
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- Linux USB boot installation: Good news for ultra-portable laptops, detailed steps
- Linux hard disk boot installation is a relatively useful technique for machines without hard disks, especially ultra-portable computers and notebooks. You can make the hard disk into a bootable disk, then copy the contents of the installation CD to the hard disk, and finally install it. There are two ways to boot and install Linux hard disk. Here we will introduce one first. Let’s introduce another one next to it. This article introduces the installation of Ubantu system. The main steps are: first make a bootable hard disk, then boot the computer from the hard disk, and install the Ubuntu system from the hard disk. It is recommended to use the latest version of Ubuntu to make a bootable card reader. The following is a step-by-step introduction. 1. Overview of bootable hard disk production There is no doubt that booting from a hard disk is very convenient, but the premise is that its capacity must be sufficient.
- LINUX 866 2024-07-28 17:03:47
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- Hongqi Linux installation tutorial: hard disk installation demonstration and Grub4DOS download address
- Burn it to a CD and install it or use a hard drive to install it. Hard drive installation demonstration: 1. Create more than 10G of free space on the hard drive to facilitate the installation of Red Flag Linux. The way to reserve space is simple. For example, your D drive has 50G and your E drive has 60G. You want to install the system without affecting the original program data on the E drive. You can create a backup of directory E on drive D, and then copy all the directory files on drive E. System files do not need to be copied. After the backup is completed, use the Linux operating system interface to use Windows The original E drive program data has been removed, and there is an additional 20G of available space. (What to ask
- LINUX 759 2024-07-28 08:32:54
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- Linux system USB boot disk creation tool: a simple and efficient installer that allows you to easily install Linux systems
- Linux system hard disk boot disk creation tool (Linux system U disk installer) is a tool used to burn Linux ISO to U disk. U disk boot installation linux deep linux system. The software is simple to operate, safe and efficient, and its installation is also simple. Clearly. Related introduction You can choose to install Linux from a USB flash drive of choice from a Linux distribution and put it on your USB flash drive. The universal USB installer is simple and easy to use. Simply select a LiveLinux distribution, the ISO file, your flash drive, and click "Install." Other features include persistence (if available) and ability to format FAT32 flash drives (recommended) to ensure a clean installation. work
- LINUX 475 2024-07-28 06:26:15
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- A Deep Dive into Linux System Calls: New System Call to Cube a Number and Print It
- Contents 1. Design purpose and requirements 2. Design content 3. Equipment and environment 4. Design ideas 5. Main data structure and process 6. Experimental test results and result analysis 7. Course design summary Attachment 1 Course design defense record Attachment 2 Source program List 1. Design purposes and requirements The design purpose of this course is to enable middle school students to understand the implementation principles of Linux system calls, master how to change the Linux kernel source code, and how to compile calling programs to call new system calls. Middle school students are required to complete this course independently and understand the concept and implementation of system calls. 2. The design content adopts the compilation kernel method operating system principle and Linux system experiment, recompiles the Linux kernel, and reduces a system tuner in Linux.
- LINUX 562 2024-07-28 04:29:15
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- Nginx cluster load balancer
- Experimental environment: 10.10.204.62LoadBalancing10.10.204.63NginxWebserver10.10.204.64NginxWebserver10.10.204.65FileStorage1.FileStorage server installation yum-yinstallnfs-utils2. Configure NFS and create a shared directory #mkdir-p/Data/webapp#vim/etc/ exports/ Data/webapp10.10.204.0/24(rw,sync,no_subtree_check,no_r
- LINUX 1048 2024-07-27 09:19:52
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- How does SYN use the TCP protocol to launch attacks?
- SYN attack is a common method used by hackers and is one of the methods of DDoS. SYN attacks exploit TCP protocol flaws by sending a large number of semi-connection requests, consuming CPU and memory resources. In addition to affecting hosts, SYN attacks can also harm network systems such as routers and firewalls. In fact, SYN attacks do not matter what system the target is, as long as these systems open TCP services, they can be implemented. To understand the basic principle of this attack, we have to start with the process of establishing a TCP connection: As we all know, TCP is based on connections, that is to say: in order to transmit TCP data between the server and the client, you must first Establish a virtual link, that is, a TCP connection. The standard process of establishing a TCP connection is as follows: Section 1
- LINUX 800 2024-07-27 08:24:02
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- Elaborate on using Splunk to monitor Kubernetes performance
- Deployment Architecture The following figure shows the deployment architecture of this solution, which mainly includes: using Heapster to collect K8s performance data, including CPU, Memory, Network, FileSystem, etc. Using Heapster's StatsdSink to send data to Splunk's MetricsStore, using Splunk's search commands and dashboards Function Monitoring performance data Preparation There are two main things to prepare in the early stage: compile the latest Heapster image and upload it to a public Docker image warehouse, for example, dockerhub configures MetricsStore and the corresponding network input (Network) in Splunk
- LINUX 750 2024-07-26 17:31:50
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- Safe ways to change passwords: multiple ways to avoid interaction
- Regularly changing the password of the system is a very important security common sense. Generally, we use commands such as passwduser to change user passwords. However, this will enter the interactive mode. Although using scripts, batch changes cannot be easily made unless using To implement software like expect, do you need to install a separate software package to change the password? No, we may have many other ways to avoid interaction. Let’s write down the specific implementation method in detail: The first one: echo "123456"|passwd--stdinroot Advantages: Convenient and fast Disadvantages: If the command you enter can be captured by others through history or other methods
- LINUX 997 2024-07-26 16:52:25
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- How to build a PHP website on Windows Server 2008 R2 Enterprise? PHPWAMP Green Integrated Environment Tutorial
- Server version: WindowsServer2008R2Enterprise usually builds a PHP website. It can be built on a Linux server or a Windows server. It mainly depends on your personal needs. Tomorrow we will demonstrate using the PHPWAMP red integrated environment to build a PHP website on a Windows server. This PHPWAMP red integrated environment also belongs to the WAMP suite. Do you know what WAMP is? Apache+Mysql+PHP under Windows is called WAMP. Although there are many WAMP packages, such as wampserver, apmserv, xampp, etc., this WAMP environment
- LINUX 841 2024-07-26 11:58:03
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- Linux system iptables firewall service installation and activation and clearing rules tutorial
- Iptables is a firewall component service under Linux. Compared with the Windows firewall, it has more powerful functions. Let's take a look at the common operations of iptables in the Linux system to determine whether the Linux system has enabled the iptables service. The Linux firewall starts up. Tutorial on starting the Linux firewall at boot and eliminating firewall rules. 1. Check whether iptables is installed 1. The firewall iptables under Linux is usually a system-integrated component. To check whether it is installed, you can query it through rpm-qa. 2. If the component is not installed, you can install it through yuminstalliptables (
- LINUX 705 2024-07-25 17:44:03
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- How to handle HTTP errors when uploading resources in WordPress
- Briefly describe the construction of an internal video learning website within the company. After comparison, WordPress was chosen to build the site. However, various problems were encountered while uploading the video, so we will record the process. Cause troubleshooting 1. When uploading an mp4 file of more than ten megabytes, the upload progress reaches 100%, and the media prompts an http error. 2. At first, it was suspected that the upload size of PHP and Nginx was limited. However, looking at the PHP and Nginx configurations, 1000Mvim/etc/nginx/conf.d/default.conflocation/{root/data/web;indexindex.phpindex.htmlindex.htm is configured
- LINUX 293 2024-07-25 13:39:11
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- Modify and crack MariaDB database root password
- There are many ways to change the mysql password. Here are 2 ways to introduce one: #/usr/local/mysql/bin/mysqladmin-uroot-ppassword "New-password" Enterpassword: [Enter the original password] // Enter and press Enter to change the password. Becomes New-password solution two #mysql-uroot-p//Press Enter to log in to the mysql system Enterpassword: [Enter the original password] MariaDB[(none)]>usemysql;//Enter the mysql database MariaDB[(none)
- LINUX 847 2024-07-25 09:09:51
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- Learn more about processes: View child processes, thread information, and common statuses
- Q&Aps view all child processes? What are the meanings of each array of pstree-ppidps-eLf? PID: processid process idPPID: parentprocessid parent process idLWP: Indicates that this is a thread; either the main thread (process) or a thread NLWP: numoflightweightprocess The number of lightweight processes, that is, the number of threads TIME: the total CPU time occupied CCPU utilization, Expressed as an integer. Check the CPU utilization rate/video memory/priority and other information of all threads under the process? top-H-p25120 Check which CPU the thread is running on? ps-eoruser,pid,ppi
- LINUX 375 2024-07-25 08:00:14
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