Хотите иметь безопасный и защищённый доступ в Интернет с вашего смартфона или ноутбука при подключении к незащищённой сети через WiFi отеля или кафе? Виртуальная частная сеть (Virtual Private Network, VPN) позволяет…
A containerização está rapidamente se tornando o método de empacotamento e deploy de aplicações mais aceito nos ambientes de nuvem. A padronização que ele fornece, juntamente com sua eficiência de recursos (quando comparado a máquinas virtuais completas) e flexibilidade, o…
In this guide, we will be setting up a simple Python application using the Flask micro-framework on Ubuntu 16.04. The bulk of this article will be about how to set up the Gunicorn application server to launch the application and Nginx to act as a front end reverse…
Postfix is a popular open-source Mail Transfer Agent (MTA) that can be used to route and deliver email on a Linux system. It is estimated that around 25% of public mail servers on the internet run Postfix. In this guide, we’ll teach you how to get up and running quickly…
🟡 Medium ⏱ 5–30 min Last verified: 2 March 2021 Affected versions: Ubuntu 16.04 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 […]
🟡 Medium ⏱ 5–30 min Last verified: 27 February 2021 📖 ~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 […]
Puppet is a configuration management tool that helps system administrators automate the provisioning, configuration and management of a server infrastructure. In this tutorial, we will demonstrate how to install open source Puppet 4 in a master-agent setup on Ubuntu 16.04. In this setup, the Puppet master server—which runs the Puppet Server software—can be used to control al
In this tutorial, you’ll use LXD to install two Nginx-based web sites on the same server, each confined to its own container. Then you’ll install HAProxy in a third container which will act as a reverse proxy. You’ll then route traffic to the HAProxy container in order to make both web sites accessible from the Internet.
The GnuPG package offers a complete solution when it comes to generating and storing cryptographic keys. It also allows you to encrypt and sign data and communication.
🟠 High ⏱ 5–30 min Last verified: 24 February 2021 Affected versions: Ubuntu 16.04 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 […]
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