After spinning up a fresh Ubuntu 26.04 LTS server, a few essential steps harden the system, create a non-root administrative account, and prepare it for production workloads. This guide walks through every step from first login to a locked-down, up-to-date server. Tested and valid on: Ubuntu 26.04 LTS Prerequisites A fresh Ubuntu 26.04 LTS server […]
Justin Ellingwood y Namo escribieron una versión anterior de este tutorial. Un red virtual privad,(VPN, por sus siglas en inglés) le permite cifrar de forma…
The Go programming language comes with a rich toolchain that makes obtaining packages and building executables incredibly easy. One of Go’s most powerful features is the ability to cross-build executables for any Go-supported foreign platform. This makes testing and package…
The CalDAV and CardDAV standards provide an easy way to keep all our smart things up-to-date with what we are doing, as well as how to get hold of our friends and other contacts. In this tutorial, we’ll show you how to sync calendars and contacts from a server you control, using a super simple installation of [Baïkal](http://baikal-server.com), a PHP CalDAV and CardDAV server.
Learn how to setup a firewall with UFW on an Ubuntu / Debian cloud server.
Otoritas Sertifikat privat yang berjalan pada Ubuntu 20.04 akan memungkinkan Anda untuk mengonfigurasi, menguji, dan menjalankan program yang membutuhkan koneksi terenkripsi antara klien dan server. Menggunakan CA privat, Anda dapat menerbitkan sertifikat untuk pengguna, server, atau masing-masing program serta layanan di dalam infrastruktur Anda. CA privat dapat membantu memastikan bahwa semua lingkungan pengembangan, penahapan, dan produksi Anda menggunakan arsitektur dan konfigurasi yang seru
🟡 Medium ⏱ 5–30 min Last verified: 20 May 2026 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & Cross-Refs References & Further […]
🟠 High ⏱ 5–30 min Last verified: 19 May 2026 Affected versions: Ubuntu 26.04 LTS 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors […]
🟠 High ⏱ 5–30 min Last verified: 19 May 2026 Affected versions: Ubuntu 26.04 LTS Ubuntu 26.04 Ubuntu 26.04.1 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention […]
This tutorial will tell you how to setup a basic mail server and attempts to teach you a bit about the Postfix MTA (Mail Transfer Agent) in the process.
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