This guide walks you through setting up a Docker Swarm cluster on three Ubuntu 16.04 servers, covering environment preparation, Docker installation, configuring a Consul discovery backend, creating manager and worker nodes, and managing containers across the swarm using the Docker remote API.
This guide walks through constructing a Kubernetes master high‑availability environment on a private‑cloud Ubuntu 14.04 platform, covering full component containerization, external load‑balancer setup with HAProxy and Keepalived, static pod configuration, privileged mode requirements, flannel networking, common pitfalls, and future HA master developments.
This tutorial walks you through installing Lua on Ubuntu, creating a convenient symlink, then demonstrates both calling Lua functions from C and invoking C functions from Lua, complete with compilation commands and expected output screenshots.
This guide walks you through installing Docker on Ubuntu, covering supported versions, system prerequisites, kernel checks, step‑by‑step installation commands, verification, and explains how Docker integrates with Huawei's eSDK storage via Unicorn Hub.
This article walks through installing Elasticsearch on Ubuntu, adding the IK Chinese analyzer and synonym filter, configuring custom analyzers, and using the Node.js client to index and query documents, providing a complete, reproducible setup for site‑wide full‑text search.
This tutorial walks through installing Docker on RedHat/CentOS (both 6.6 and 7) and Ubuntu 14.04, configuring it to start automatically, and then demonstrates running a simple hello‑world container, an interactive bash session, and a long‑running daemon container with detailed command explanations.
This guide explains how to configure Docker’s daemon to use DaoCloud’s Docker Hub Mirror on CentOS and Ubuntu, enabling dramatically faster image downloads by adding a registry‑mirror option, restarting the service, and verifying the speed with a test pull.
Learn how to install Docker on CentOS, start the service, pull the official Ubuntu image, and launch an interactive container to display a simple 'hello world' message, with step‑by‑step commands and screenshots illustrating each stage of the process.
To install Oracle or run other graphical applications on a remote Ubuntu machine, you can leverage X11 forwarding over SSH by enabling X11 support in sshd_config, connecting with the -X option, and launching GUI programs such as xeyes or Firefox, eliminating the need for a local GUI.
This step‑by‑step guide shows how to set up a production‑ready Django environment on an Ubuntu VPS, covering system updates, Python and virtualenv installation, Django, database, caching, asynchronous tasks, Gunicorn, Nginx, and process supervision with Supervisor.
This step‑by‑step guide shows how to harden a freshly installed Ubuntu 12.04 LTS server by creating a non‑root user, disabling root SSH access, configuring SSH keys, applying system updates, setting up iptables firewall rules, and installing Fail2Ban to automatically block malicious login attempts.
This guide explains how to detect DNS pollution on Ubuntu 12.04, disable the default NetworkManager dnsmasq cache, install and configure dnsmasq to route specific domain queries through OpenDNS on special ports, and verify that legitimate IP addresses are returned.
