• Windows Server 2022 and SQL Server 2022 highlights


    In the digital age, from modern applications to intelligent operation and maintenance, from AI prediction to rapid decision-making… Every link of an enterprise is inseparable from data. According to IDC’s forecast, the global big data reserves will reach 223ZB in 2026, and it becomes crucial to process and analyze data in a timely manner and […]

  • How to Extend XFS Root Partition in Linux


    In some cases, the / partition runs out of disk space in Linux. Even compressing and deleting old log files won’t help, so in this case we have no choice but to extend the /filesystem. In this article, we will demonstrate how to extend xfs root partition that is not in LVM logical volume in […]

  • SSH public and private key generation management


    1. Generate a public/private key pair Command to generate public/private key pair (Windows/Linux): ssh-keygen -b 4096 -C Zhang San -N password -f ./zhangsan-key Parameter Description: -b 4096: Indicates the length of the key, starting from 4096 is recommended. -C Zhang San: Add a comment at the end of the public key, whose public key is […]

  • i7z command tool – used to view CPU status


    Tool used by i7z to report Intel CPU information. The displayed information includes Turbo Boost, frequency, and the top shows the current frequency, temperature and time of each core in C0/C1/C3/C6 state. Install i7z in ubuntu:[email protected]:~$ sudo apt install -y i7zTo install i7z in Centos7, you need to download it from github and compile: [[email protected] […]

  • Build PHP in windows server2012 r2


    My server environment is a server that rents a 3A network1. Open Server Manager – Add Roles and FeaturesMake sure CGI is installed, the rest depends on individual needsThen go to the next step – start the installationAfter installation, open a browser to access success2. Install Visual C++ Redistributable for Visual Studio 2012 Update […]

  • Is it better to use Linux for enterprise information security?


    There are many factors to consider when choosing an operating system, and one of the most critical is security. The general consensus among experts is that Linux is one of the most secure operating systems by design, and this impressive performance can be attributed to a number of factors, including its transparent open source code, […]

  • yum error: Could not resolve host:


    After pulling an Alibaba Cloud image, the error “Could not resolve host:” appears when using yum. The solution is as follows:1. My image is linux version 8, the changes will be different than 7.2. cd /etc/yum.repos.d/, you can see the following: CentOS-Linux-AppStream.repo CentOS-Linux-FastTrack.repo CentOS-Linux-BaseOS.repo CentOS-Linux-HighAvailability.repo CentOS-Linux-ContinuousRelease.repo CentOS-Linux-Media.repo CentOS-Linux-Debuginfo.repo CentOS-Linux-Plus.repo CentOS-Linux-Devel.repo CentOS-Linux-PowerTools.repo CentOS-Linux-epel.repo CentOS-Linux-Sources.repo CentOS-Linux-Extras.repo […]

  • Create LVM Logical Volume in CentOS8 System


    A striped logical volume will write data evenly across all available physical volumes. We have four physical volumes, and when data is written to a striped logical volume, it stripes the data across all disks, providing higher read and write performance. How it works Suppose we want to write a 32MB file. The first 4 […]

  • Build mysql in windows server2012 r2


    1. First go to MySQL’s official website to download the installation package2. Other downloads require login, select the following direct installation3. Then extract it to the folder. The server environment I use is a rented VPS server (extract C:\mysql-8.0.29-winx64 in this article), and configure the initialized mi.ini file (create my.ini file and put Paste the […]

  • CentOS Stream is the future


    Recently, Red Hat, an enterprise-level open source solution provider, launched a live video column “8.1 “Lessons”, Red Hat Enterprise Open Source Lectures. The second issue invited Red Hat Chief Architect Zhang Jiaju to explain the source of CentOS Stream code, Compilation and construction, continuous integration and test verification and many other details, explain how to […]

  • linux delete files according to inode number


    1. List the inodes of all files in the directory Operation command:ls -li . [[email protected] ~]$ ls -li . Total usage 392992 1328244-RW-RW-R — 1 NIEwJ NIEWJ 654 April 27 22:42-D 1328240-RW-RW-R — 1 NIEwJ NIEwJ 0 April 27 22:42-H 1322919-RW-RW-R — 1 NiewJ NiewJ 57276047 July 6 2020 Kafka_2.12-2.2.TGZ 1328256-RW-RW-R — 1 Niewj Niewj […]

  • windows server2012 r2 change password


    Environment: VPS server1. Select the account whose password you want to change, right-click, and select “Set Password” 2. Click “Continue” 3. Enter the password you want to change, then click “OK” 4. Click “OK” 5. Click the win icon in the lower left corner, click your account, and select “Logout” 6. Then enter the password […]