Hands‑on DevOps operations using Docker, K8s, Jenkins, and Ansible—empowering ops professionals to grow together through sharing, discussion, knowledge consolidation, and continuous improvement.
This article explains Linux routing fundamentals, describing how routing tables are used to select interfaces and next hops, detailing the six-step packet routing process, and providing step‑by‑step commands and examples for adding and removing host, network, and default routes on Linux systems.
This guide explains how to use Ansible's fetch module to copy files from a remote server to a local machine, including configuration, execution, verification, and key parameters such as flat and fail_on_missing.
This guide demonstrates how to use Ansible's with_items loop to copy multiple files or directories to a target server, showing the playbook structure, required parameters, example command execution, and verification of copied files.
This guide demonstrates how to use Ansible playbooks to copy a single file or multiple files from a source host to a target server, detailing the required YAML configuration, copy module parameters, and execution steps for reliable file deployment in automated operations.
This article provides a step‑by‑step guide to configuring Nginx for both HTTP and HTTPS, including how to set up separate proxy passes for multiple APIs, define URL rewrite rules, configure SSL certificates, and customize error page handling using concrete configuration examples.
This guide shows how to rewrite Nginx port 80 requests to HTTPS on port 443, configure the HTTPS server block, and set up an IP whitelist with allow and deny directives to restrict access to specific clients.
The article explains how Nginx's try_files directive, introduced after version 0.7, attempts to serve static files by checking the $uri and $uri/ variables, falls back to a named location when files are missing, and can replace traditional rewrite rules for more efficient request handling.
This article explains why Nginx reverse‑proxying to an HTTPS upstream can return a 502 Bad Gateway error when SNI is not sent, shows the relevant SSL handshake log, and provides a complete configuration example—including enabling proxy_ssl_server_name—to fix the issue and avoid reload‑related socket problems.
This guide shows how to configure Nginx to serve a mini‑program verification file from a custom directory when the root cannot hold the file, and includes extended examples for routing all .txt and .mp4 files to specific directories using location and alias directives.
This collection provides a step‑by‑step tutorial series of sixteen short videos demonstrating how to access, configure, and use the DeepSeek large language model across various office applications such as Word, Excel, PowerPoint, as well as platforms like WPS and online APIs.
