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Technical Articles

Operation and Maintenance

What are the tricks for GitLab on Debian

This article provides practical guides for efficient troubleshooting GitLab problems on Debian systems. 1. Log file check First, check the GitLab log file, usually located in the /var/log/gitlab directory. Unicorn, nginx and sidekiq logs are particularly important, they can provide clues to service crashes or errors. 2. System resource monitoring Use top or htop and other tools to monitor the server's CPU, memory and disk usage. High resource usage may cause GitLab to be instability. The command psaux|grepgitlab can view the resource usage of the GitLab process. 3. Network connection test confirms that the server network connection is correct

Apr 13, 2025 am 06:21 AM

mysql git nginx 工具 ai

What to do if the debian mail server fails

Have a problem with your Debian mail server? Don't worry, this article provides step-by-step guides to help you diagnose and resolve common failures. Step 1: Check the service status First, confirm whether the Postfix and Dovecot mail services are running normally: sudosystemctlstatuspostfixsudosystemctlstatusdovecot If the service is stopped, please use the following command to start: sudosystemctlstartpostfixsudosystemctlstartdovecot Step 2: Log file analysis View log file to find error information: Postf

Apr 13, 2025 am 06:18 AM

工具 ai 权限验证

How many users can the debian mail server host?

The number of users that the Debian mail server can carry is not a fixed value, but depends on the combined effect of many factors. These factors include server hardware configuration, network bandwidth, mail server software and its configuration, as well as user usage habits. Key influencing factors: Mail server software and configuration: Commonly used mail server software include Postfix (fast, reliable, lightweight), Exim (highly customizable) and Dovecot (popular IMAP/POP3 server). Their configuration options (such as mail queue size, connection limit, etc.) directly affect server performance. Hardware and network environment: server CPU, memory, storage space and network bandwidth, as well as network connection stability and speed

Apr 13, 2025 am 06:15 AM

Debian system OpenSSL vulnerability fix

To ensure the security of OpenSSL on the Debian system, please follow the following steps: 1. System update: First, update your Debian system to the latest version. Use the following command to update the package list and upgrade all installed software: sudoaptupdatesudoaptupgrade 2. Version confirmation: Check the current OpenSSL version: opensslversion 3. OpenSSL upgrade: If the version is too old, please upgrade. Method 1: Direct upgrade (recommended): Use the following command to directly upgrade to the latest stable version of OpenSSL: sudoaptinstall--only-upgrade

Apr 13, 2025 am 06:12 AM

apache nginx ai 日志监控

How to troubleshoot OpenSSL issues on Debian

This article guides you how to effectively troubleshoot and resolve OpenSSL problems on Debian systems. 1. System and software package update First, make sure your Debian system has been updated to the latest version: sudoaptupdatesudoaptupgrade 2. Install OpenSSL and development library Install OpenSSL and its necessary development libraries: sudoaptininstallopenssllibssl-dev installation after the installation is completed, verify whether the installation is successful: opensslversion 3. Manual compilation and installation (optional) If the apt installation fails, you can try manually compiling and installing OpenSSL: from Op

Apr 13, 2025 am 06:09 AM

工具解决方法

OpenSSL configuration file location on Debian

In Debian systems, OpenSSL configuration files are usually located in the /etc/ssl directory. However, the exact file location may vary depending on the installation method and OpenSSL version. Here are some common files: SSL certificates and keys: usually stored in /etc/ssl/certs and /etc/ssl/private directories. Main configuration file: The openssl.cnf file is the main configuration file of OpenSSL, usually located in /etc/ssl/openssl.cnf. If you install OpenSSL using a package manager such as apt, these files should be automatically created and placed in the corresponding directory. Please note

Apr 13, 2025 am 06:06 AM

系统版本

How to install PHPStorm in Debian system

Install PHPStorm on the Debian system to easily solve your PHP development environment! The following steps will guide you through the entire installation process. Installation steps: Download PHPStorm: Visit the official website of JetBrains and download the latest version of PHPStorm. Unzip the installation package: After downloading using wget or curl, unzip it to the specified directory (for example /opt). Command example: wgethttps://download.jetbrains.com/phpstorm/phpstorm-2024.3.5.tar.gztar-xzfphpstorm-2024.3.5.tar.gz

Apr 13, 2025 am 06:03 AM

phpstorm ai

How to install software through FetchDebian

The most convenient way to install Debian system software is to use the APT package manager. The following steps will guide you how to use APT efficiently: Update package information: First, update the local package list to ensure that the latest software information and available updates are obtained. Execute the following command: sudoaptupdate search target software: use the aptsearch command to find the required software. For example, to find a text editor, enter: aptsearcheditor system returns all matching packages. Install the software: After finding the target software package, use the aptinstall command to install it. For example, install the Nginx web server:s

Apr 13, 2025 am 06:00 AM

nginx 系统升级

Docker on Linux: Best Practices and Tips

Best practices for using Docker on Linux include: 1. Create and run containers using dockerrun commands, 2. Use DockerCompose to manage multi-container applications, 3. Regularly clean unused images and containers, 4. Use multi-stage construction to optimize image size, 5. Limit container resource usage to improve security, and 6. Follow Dockerfile best practices to improve readability and maintenance. These practices can help users use Docker efficiently, avoid common problems and optimize containerized applications.

Apr 13, 2025 am 12:15 AM

Docker Linux

The Heart of Linux: The 5 Core Components

The five core components of Linux are kernel, shell, file system, system library and system tools. 1. The kernel manages hardware resources and provides services to the application. 2. Shell serves as the interface between the user and the system, interprets and executes commands. 3. The file system is responsible for the storage and organization of data. 4. The system library provides precompiled functions to provide program calls. 5. System tools are used for system management and maintenance. These components work together to give Linux powerful functionality and flexibility.

Apr 13, 2025 am 12:15 AM

核心组件 Linux内核

CentOS's Legacy: Why It Was Discontinued

CentOS was terminated because RedHat shifted its focus to CentOSStream, which was used to speed up the RHEL development cycle and drive users to move to RHEL. Alternatives include: 1.RockyLinux, 2.AlmaLinux, 3.OracleLinux. Compatibility, support, and long-term planning are considered when choosing an alternative.

Apr 13, 2025 am 12:12 AM

CentOS Linux发行版

NGINX's Key Features: Performance, Scalability, and Security

NGINX improves performance through its event-driven architecture and asynchronous processing capabilities, enhances scalability through modular design and flexible configuration, and improves security through SSL/TLS encryption and request rate limiting.

Apr 13, 2025 am 12:09 AM

安全性能

Apache: An Introduction to the Web Server

ApacheHTTPServer is one of the most popular web servers on the internet and is popular for its stability, scalability and openness. Apache's core functionality is to process and respond to HTTP requests, and supports static and dynamic content services, proxying and load balancing. Its modular design allows for extended functionality by loading different modules, such as mod_rewrite for URL rewriting and mod_ssl for SSL/TLS encryption. Key concepts during installation include the httpd.conf configuration file and virtual host settings. Apache works by processing requests based on request URLs and configuration file rules, and optimizes server performance with a flexible modular architecture. Basic usage includes configuring virtual hosts

Apr 13, 2025 am 12:08 AM

apache web服务器

Understanding the Current macOS: A Concise Guide

macOSSonoma is the latest operating system version released by Apple in 2023. 1. It enhances the user experience through new features such as desktop widgets. 2. Rely on the SwiftUI framework to implement these functions. 3. The basic usage includes adding widgets. 4. Advanced usage such as using Automator to create workflows. 5. Common error handling includes checking system resources. 6. Performance optimization is recommended to clean the cache regularly.

Apr 13, 2025 am 12:02 AM

指南 macOS