🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-7330-1 Related CVEs: CVE-2015-3908 CVE-2015-6240 CVE-2016-8614 CVE-2019-10206 CVE-2019-14846 CVE-2019-14904 CVE-2020-10729 CVE-2020-1739 +12 more Upstream summary: It was discovered that Ansible did not properly verify certain fields of X.509 certificates. An […]
Автор выбрал фонд Open Internet/Free Speech для получения пожертвования в рамках программы Write for DOnations. Jitsi Meet — приложение с открытым…
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read • Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2020-10699 CVE-2020-13867 Upstream summary: A flaw was found in Linux, in targetcli-fb versions 2.1.50 and 2.1.51 where the socket used by targetclid was world-writable. If […]
How to Set Up Port Knocking for SSH on RHEL 7 Port knocking is a stealthy technique for controlling access to network services by requiring a client to send connection attempts to a predefined sequence of closed ports before a firewall rule opens the target port. When applied to SSH, it effectively hides port 22 […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2021-2170 Related CVEs: CVE-2021-27219 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
Certbot offers a variety of ways to validate your domain, fetch certificates, and automatically configure Apache and Nginx. In this tutorial, we’ll discuss Certbot’s standalone mode and how to use it to secure other types of services, such as a mail server or a message broker like RabbitMQ.
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5990-1 Related CVEs: CVE-2019-14697 CVE-2020-28928 CVE-2014-3484 CVE-2015-1817 CVE-2016-8859 CVE-2017-15650 CVE-2018-1000001 Upstream summary: It was discovered that musl did not handle certain i386 math functions properly. An attacker could use this […]
R is a popular open source programming language that specializes in statistical computing and graphics. It is widely used by statisticians for developing statistical software and performing data analysis. One of R’s strengths is that it is highly and easily extensible by allowing users to author and submit their own packages. In this guide, we will learn how to set up R on a cloud servers running Ubuntu 14.04.
Une version antérieure de ce tutoriel a été écrite par Brennan Bearnes. Si de nombreux utilisateurs ont besoin des fonctionnalités d’un système de gestion de base de données comme MySQL, ils peuvent ne pas se sentir à…
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5050-1 Related CVEs: CVE-2020-26558 CVE-2021-0129 CVE-2021-28691 CVE-2021-3564 CVE-2021-3573 CVE-2021-38208 CVE-2021-23134 CVE-2021-32399 +12 more Upstream summary: It was discovered that the bluetooth subsystem in the Linux kernel did not properly perform […]
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