Introduction This tutorial demonstrates how to Set Up CentOS Stream 9 in AWS on CentOS Stream 9. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered CentOS Stream 9 system with the default […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read • Source: AlmaLinux ALSA ALBA-2019:3504 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]
🟢 Low ⏱ 5–15 min Last verified: 20 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2002-1914 CVE-2005-2096 Upstream summary: dump 0.4 b10 through b29 allows local users to cause a denial of service (execution prevention) by using flock() to lock the /etc/dumpdates file. […]
Le langage de programmation Python est un choix de plus en plus populaire, tant pour les débutants que pour les développeurs expérimentés. Flexible et polyvalent, Python possède des atouts en matière de script, d’automatisation, d’analyse de données, d’apprentissage…
How to Configure Nginx WebSocket Proxying on RHEL 7 WebSockets provide a full-duplex communication channel over a single TCP connection, enabling real-time features such as live chat, push notifications, collaborative editing, and live dashboards. Unlike traditional HTTP requests, a WebSocket connection is established through an HTTP upgrade handshake and then kept open indefinitely. Nginx can […]
🟠 High ⏱ 15–60 min Last verified: 20 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2008-4201 CVE-2008-5244 CVE-2017-9218 CVE-2017-9219 CVE-2017-9220 CVE-2017-9221 CVE-2017-9222 CVE-2017-9223 +12 more Upstream summary: Heap-based buffer overflow in the decodeMP4file function (frontend/main.c) in FAAD2 2.6.1 and earlier allows remote attackers […]
🟡 Medium ⏱ 10–30 min Last verified: 20 December 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5036-1 Related CVEs: CVE-2019-8955 CVE-2021-28089 CVE-2021-28090 CVE-2021-34548 CVE-2021-34549 CVE-2021-34550 CVE-2021-38385 Upstream summary: It was discovered that Tor incorrectly handled certain memory operations. A remote attacker could use this issue to […]
Defense in depth for SSH with Fail2Ban, nftables, and the cloud provider Cloud Firewalls. Harden Ubuntu and block brute-force attacks via a bastion.
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read • Source: AlmaLinux ALSA ALBA-2019:1970 Upstream summary: The authd packages contain authd, a small and fast RFC 1413 ident protocol daemon with both xinetd server and interactive modes that supports IPv6 and IPv4 as well as […]
Introduction Setting up set up samba file sharing on centos stream 9 on a CentOS Stream 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up Samba File Sharing on CentOS Stream 9, with all the commands you need, the SELinux and firewalld […]
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