security

Как настроить Nginx Ingress с Cert-Manager в Kubernetes — step-by-step Kubernetes tutorial on Progressive Robot

Как настроить Nginx Ingress с Cert-Manager в Kubernetes

Сущности Ingress в Kubernetes обеспечивают гибкую маршрутизацию внешнего трафика кластера Kubernetes среди служб внутри кластера. Это достигается с помощью ресурсов Ingress, которые определяют правила…

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How To Create an SSH CA to Validate Hosts and Clients with Ubuntu — step-by-step Linux tutorial on Progressive Robot

How To Create an SSH CA to Validate Hosts and Clients with Ubuntu

When dealing with an extensive infrastructure and many team members, managing SSH keys for authentication can become unwieldy. However, SSH can utilize certificates in order to sign and validate user and host credentials to allow a seamless experience. In this guide, we’ll learn how to set this up using three Ubuntu 12.04 VPS instances.

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How To Disable Root Login on Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

How To Disable Root Login on Ubuntu 20.04

All Linux-based machines come with a default root user that has all privileges on the machine. Good security practices recommend that you disable the root login over SSH to prevent unauthorized access to your Linux-based machine by any other user. Disabling root login prevents root access over SSH to your Linux-based machine, which means that no one will have unlimited privileges.

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How To Harden OpenSSH on Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

How To Harden OpenSSH on Ubuntu 18.04

Linux servers are often administered remotely using SSH by connecting to an OpenSSH server, which is the default SSH server software used within Ubuntu, Debian, CentOS, FreeBSD, and most other Linux/BSD-based systems. In this tutorial, you will harden your OpenSSH server by using different configuration options to help ensure that remote access to your server is as secure as possible.

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Настройка брандмауэра с UFW в Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Настройка брандмауэра с UFW в Ubuntu 20.04

UFW — это простой интерфейс управления брандмауэром, скрывающий сложность низкоуровневых технологий фильтрации пакетов, таких как iptables и nftables. Если вы ищете способ защитить вашу сеть и не знаете, какой инструмент для этого использовать, UFW может отлично вам…

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