Postfix adalah Agen Transfer Surat (MTA) sumber terbuka populer yang dapat digunakan untuk mengirimkan surel sesuai rutenya pada sistem Linux. Diperkirakan bahwa sekitar 25% dari server surel publik di Internet menggunakan Postfix. Dalam panduan ini, Anda akan mempelajari cara menginstal dan mengonfigurasi Postfix pada server Ubuntu 20.04.
Build tools are an important part of the development experience, but a spec called import maps will allow you to both import external code into your project without a build tool. In this tutorial, you will create and use import maps in JavaScript to import code without build tools, import external code, and use the code without extra build steps.
Effectively performing mathematical operations in programming is an important skill to develop because of how frequently you’ll work with numbers. This tutorial will review operators that we can use with the integer and float data types in Go.
In Node.js, a module is a collection of JavaScript functions and objects that can be used by external applications. In this tutorial, you will create a Node.js module organized with npm that suggests what color web developers should use in their designs. You will develop the module by storing the colors as an array, and providing a function to retrieve one randomly. Afterwards, you will run through various ways of exporting and importing a module into a Node.js application.
How to Configure Windows Server 2016 IPsec IPsec (Internet Protocol Security) is a suite of protocols that provides authentication, integrity, and encryption for IP network traffic. On Windows Server 2016, IPsec can be configured through Windows Firewall with Advanced Security to protect communications between servers, isolate network segments, and enforce secure communication policies. Common uses […]
🟡 Medium ⏱ 10–30 min Last verified: 10 November 2020 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2026-50239 Related CVEs: CVE-2025-14876 CVE-2025-54566 CVE-2025-54567 CVE-2025-8860 CVE-2026-0665 CVE-2026-2243 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]
🟠 High ⏱ 5–30 min Last verified: 10 November 2020 Affected versions: Ubuntu 14.04 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 […]
🟢 Low ⏱ 5–15 min Last verified: 10 November 2020 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4673-1 Related CVEs: CVE-2020-26154 CVE-2020-25219 Upstream summary: Li Fei discovered that libproxy incorrectly handled certain PAC files. An attacker could possibly use this issue to cause a crash or execute […]
🟠 High ⏱ 5–30 min Last verified: 10 November 2020 Affected versions: 16.04 📖 ~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 […]
Introduction This tutorial covers How to Deploy a Laravel Application on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up to date: zypper […]
