What is Infrastructure as Code (IaC)?
InfrastructureasCode (IaC) is a method of defining and managing infrastructure through code, which can realize the automated deployment and management of servers, networks, storage and other resources. Its core value lies in improving the repeatability of environmental construction, supporting version control, saving time and cost, and promoting team collaboration. Mainstream tools include Terraform (multi-cloud platform), AWSCloudFormation (specially designed for AWS), Ansible (mainly configuration management), Pulumi (supporting a common programming language), and Chef/Puppet (focusing on server configuration). Getting started with IaC is: selecting platforms and tools, starting with simple resources, and learning to use Gi
Jul 10, 2025 am 11:24 AM
What are some best practices for securing an SSH server?
TosecureanSSHserver,implementstrongauthentication,limitaccess,changedefaultsettings,configurefirewallrules,andkeepthesystemupdated.First,enableSSHkeypairswithpassphrasesanddisablepasswordauthenticationentirelyafteruploadingpublickeystoauthorized_keys
Jul 10, 2025 am 11:23 AM
How to combine PDFs on Mac
Merging PDF files can be achieved in three ways on Mac: 1. Use the "Preview" application to manually drag and merge, suitable for a small number of pages; 2. Use "automatic operations" to create a batch merge, suitable for a large number of files; 3. Use Adobe AcrobatPro, PDFelement or online tools to realize advanced functions. The first two are the system-owned solutions, and the basic merger requirements can be completed without additional software installation.
Jul 10, 2025 am 11:20 AM
How to set up Hot Corners on Mac
How to enable hot angles on your Mac? 1. Open the system settings and enter the "Desktop and Dock"; 2. Click the "Hot Corner" button; 3. Assign actions to each corner from the drop-down menu, such as MissionControl, desktop, screen saver, etc. Hot corners are the corners of the screen that trigger specific actions by mouse movement, suitable for quick access functions and save time. It is recommended to avoid the same diagonal setting operation when using it. Multiple monitors need to maintain consistent settings. If you frequently touch mistakes, you can set them to "none" or change corners. To turn off, just set the operation in the corresponding corner to "None".
Jul 10, 2025 am 11:17 AM
Messages not syncing between iPhone and Mac
Common reasons for the discontinuation of iPhone and Mac messages include inconsistent Apple ID, not enabled iCloud information, and network or iCloud storage issues. 1. Make sure that iPhone and Mac are logged in with the same Apple ID; 2. Check whether “iCloud Information” is enabled in the iPhone settings → information, and whether “Enable iCloud Information” is checked in the information application preference settings on the Mac; 3. Confirm that the device is connected to a stable Wi-Fi, go to the Apple official website to check the iCloud service status, and check whether the iCloud storage space is full; 4. Try to turn off the “iCloud Information” function and restart the device and restart it to reset the synchronization. If it still cannot be resolved, you can consider updating the system or
Jul 10, 2025 am 11:12 AM
How to install Windows Subsystem for Linux (WSL)?
The steps to install WindowsSubsystem for Linux (WSL) are as follows: 1. Run PowerShell as an administrator and enter wsl--install to enable WSL and install the default distribution Ubuntu; 2. If the command is invalid, you need to confirm that the system is the Win10/11 version that supports WSL2; 3. After the installation is completed, you need to create a user and password. You can also replace other distributions such as Debian, Kali, etc. through Microsoft Store; 4. Use the wsl--set-version command to set the specified distribution to WSL2. It is recommended to set the default version to WSL2 to improve compatibility; 5. Some computers need to run bcde
Jul 10, 2025 am 11:07 AM
How to create a guest account in Windows 10
The methods to enable a Guest account are as follows: 1. Open the "Start Menu", search and open "Computer Management"; 2. Select "System Tools" → "Local Users and Groups" → "Users"; 3. Right-click the Guest account, cancel the "Account Disabled" check and apply. Further restrictions on permissions can be achieved through folder security settings or Group Policy Editor. Notes include: Guest accounts do not have personalized settings and cannot be logged in remotely or use store applications and OneDrive, and are suitable for temporary use rather than long-term replacement of standard accounts.
Jul 10, 2025 am 10:56 AM
Where are temporary files stored in Windows
Temporary files in Windows systems are mainly stored in two paths: C:\Users\username\AppData\Local\Temp and C:\Windows\Temp; in addition, browsers such as Chrome, Edge, and Firefox also have their own cache directories; temporary content such as .tmp files may also be generated when the application is installed or run. Cleaning methods include manual deletion, using disk cleaning tools, executing cleaning instructions, or processing with third-party software.
Jul 10, 2025 am 10:56 AM
How to disable the touchscreen on a Windows laptop
Yes, you can disable the touch screen of your Windows laptop via Device Manager, PowerShell, or uninstall the driver. 1.Use Device Manager: Open Device Manager, expand "Human-machine Interface Device", right-click "HID Compatible Touch Screen" and select "Disable Device". 2. Use PowerShell: Run PowerShell as administrator and enter the command Get-PnpDevice-ClassTouchScreen|Disable-PnpDevice-Confirm:$false. 3. Uninstall the driver: Find the touch screen device in the Device Manager, right-click to select "Uninstall Device", and select Delete Driver
Jul 10, 2025 am 10:54 AM
How to get Windows emojis on Mac
If Mac users want to use Windows-style emoji in their system, they can achieve it in three ways: First, use third-party software such as iEmoji or Beeper to import multi-platform emoji styles with one click and support cross-application display; Second, download Windowssemoji fonts by manually replacing the system font files and enable them in the font book, but there are certain risks and need to be backed up in advance; Third, use custom emoji packages or emoji screenshots directly in specific apps, such as Slack, Discord and other applications to support uploading or switching emoji themes. Different methods are suitable for different scenarios, and users can choose the most suitable solution according to their needs.
Jul 10, 2025 am 10:53 AM
Razer's New BlackWidow Keyboard Is Compact and Customizable
For enhanced control, the keyboard features a multi-function roller and three specialized control buttons. These allow quick adjustments for media playback, volume, and battery status. If the default settings don’t suit your needs, you can reprogram
Jul 09, 2025 pm 09:02 PM
10 sFTP Command Examples to Transfer Files on Remote Linux
File Transfer Protocol (FTP) was a widely used protocol to transfer files or data remotely in an unencrypted format which is not a secure way to communicate. As we all know that File Transfer Protocol is not at all secure because all transmissions h
Jul 09, 2025 am 09:20 AM
How to Install OwnCloud on Rocky Linux and AlmaLinux
File sharing and collaboration is one of the key functions that users leverage on the Cloud in order to streamline workflows. This enables teams and users to get their projects done in a timely and convenient manner regardless of geographical distanc
Jul 09, 2025 am 09:19 AM
15 Practical Examples of 'echo' command in Linux
The echo command is one of the most commonly and widely used built-in commands for Linux bash and C shells, that typically used in a scripting language and batch files to display a line of text/string on standard output or a file. The syntax for the
Jul 09, 2025 am 09:18 AM
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