How To Install and Setup Postfix on Ubuntu 12.04
Postfix is a free, open source Mail Transfer Agent which works to route and deliver email. Here we’ll help you install and setup Postfix on an Ubuntu 12.04 VPS.
Hibernate Tomcat JNDI DataSource Example Tutorial
Welcome to the Hibernate Tomcat JNDI DataSource example tutorial. We have already seen how to use [Hibernate ORM tool in standalone java application](/community/tutorials/hibernate-tutorial-for-beginners "Hibernate Tutorial For Beginners using XML, Annotations and Property Configurations"), today we will learn how to use Hibernate with DataSource in Tomcat servlet container. Using hibernate in web application is very easy, […]
Build a To-Do App with Django and React
Learn how to build a full-stack to-do app using Django and React. Follow the setup for backend APIs, React UI, and data persistence.
Automating Server Setup with Ansible: Un kit del taller de the cloud provider
<$>[note] [label Automatizar la configuración del servidor con materiales del kit de taller de Ansible] Este kit de taller está diseñado para ayudar al público técnico a familiarizarse con los conceptos vinculados a la gestión de configuración y con el uso de Ansible para automatizar la…
How to Configure a Read-Only Domain Controller (RODC) on Windows Server 2016
How to Set Up Windows Server 2016 Read-Only Domain Controller A Read-Only Domain Controller (RODC) is a special type of Domain Controller introduced in Windows Server 2008 that holds a read-only copy of the Active Directory database. RODCs are designed for deployment in locations where physical security cannot be guaranteed, such as branch offices, edge […]
DNS Resolution Intermittently Fails on Server
🟠 High ⏱ 5–30 min Last verified: 10 August 2020 Affected versions: Debian 9 📖 ~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 & […]
Debian 10 Temporary Failure Resolving During apt update
🟡 Medium ⏱ 5–30 min Last verified: 10 August 2020 Affected versions: Debian 10 📖 ~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 & […]
Ubuntu 16.04 — grub2-signed — multiple vulnerabilities (10 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 10 August 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4432-2 Related CVEs: https://launchpad.net/bugs/1889556 https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass CVE-2020-10713 CVE-2020-14308 CVE-2020-14309 CVE-2020-14310 CVE-2020-14311 CVE-2020-15705 +2 more Upstream summary: USN-4432-1 fixed vulnerabilities in GRUB2 affecting Secure Boot environments. Unfortunately, the update introduced regressions for […]
Windows Server 2016 – NetAdapter advanced offload bug disrupts DHCP failover updates – Fix and Prevention
🟡 Medium ⏱ 5–30 min Last verified: 10 August 2020 Affected versions: Windows Server 2016 📖 ~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 […]
How to Install and Configure Julia on Debian 10
Introduction This guide explains how to Install and Configure Julia on Debian 10 on Debian 10 Buster. Debian Buster uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 10 install with the […]