Linux

SLES 16 — libfreebl3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — libfreebl3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • November 9, 2025
  • Linux
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🔴 Critical   ⏱ 15–90 min  Last verified: 9 November 2025 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2021:385-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-12400 CVE-2020-12401 CVE-2020-12403 CVE-2020-6829 CVE-2015-2721 CVE-2015-7181 CVE-2015-7182 CVE-2016-1950  +12 more Upstream summary: When converting coordinates from projective to affine, the modular inversion was not performed […]

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How to Configure SSH Keys for GitHub on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure SSH Keys for GitHub on Debian 13

  • November 9, 2025
  • Linux
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Introduction This guide explains how to Configure SSH Keys for GitHub on Debian 13 on Debian 13 Trixie. Debian Trixie 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 13 install with […]

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SLES 16 — cargo-audit-advisory-db — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — cargo-audit-advisory-db — multiple vulnerabilities (10 CVEs) — patch and remediation guide

  • November 9, 2025
  • Linux
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🔴 Critical   ⏱ 15–90 min  Last verified: 9 November 2025 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE security advisory Related CVEs: CVE-2022-36086 CVE-2021-32629 CVE-2023-5129 CVE-2024-28854 CVE-2022-24791 CVE-2023-49092 CVE-2024-47609 CVE-2024-52813  +2 more Upstream summary: linked_list_allocator is an allocator usable for no_std systems. Prior to version 0.10.2, the heap initialization methods were […]

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How to Install Helm on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install Helm on Debian 13

  • November 9, 2025
  • Linux
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Introduction How to Install Helm on Debian 13 is a fundamental operation for any administrator maintaining a Debian 13 Trixie server. Debian 13 Trixie ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 12. This tutorial […]

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Red Hat Enterprise Linux 7 — eap7-netty — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Red Hat Enterprise Linux 7

Red Hat Enterprise Linux 7 — eap7-netty — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • November 9, 2025
  • Linux
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🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Red Hat Enterprise Linux 7 📖 ~4 min read  •  Source: Red Hat advisory RHSA RHSA-2026:0742 Related CVEs: CVE-2025-52999 CVE-2025-55163 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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How to Manage Services with systemd on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Manage Services with systemd on Debian 13

  • November 9, 2025
  • Linux
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Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up manage services with systemd on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the resulting configuration […]

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Amazon Linux 2023 — cuda-nvvp-12-9 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — cuda-nvvp-12-9 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • November 8, 2025
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023NVIDIA-2025-214 Related CVEs: CVE-2025-23272 CVE-2025-23247 Upstream summary: NVIDIA nvJPEG library contains a vulnerability where an attacker can cause an out-of-bounds read by means of a specially crafted JPEG file. A […]

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How to Install K3s on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install K3s on RHEL 10

  • November 8, 2025
  • Linux
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Introduction How to Install K3s on RHEL 10 on RHEL 10 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is reproducible and production-safe. […]

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Amazon Linux 2023 — cuda-nvtx-12-9 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — cuda-nvtx-12-9 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • November 8, 2025
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023NVIDIA-2025-215 Related CVEs: CVE-2025-23272 CVE-2025-23247 Upstream summary: NVIDIA nvJPEG library contains a vulnerability where an attacker can cause an out-of-bounds read by means of a specially crafted JPEG file. A […]

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How to Enable Brotli and Gzip Compression in Nginx on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Enable Brotli and Gzip Compression in Nginx on RHEL 9

  • November 8, 2025
  • Linux
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Text-based HTTP responses — HTML, CSS, JavaScript, JSON, XML, SVG — compress dramatically with standard compression algorithms, often achieving 60–80% size reduction. Nginx supports two compression algorithms: gzip (built-in, universal browser support) and Brotli (via the ngx_brotli dynamic module, 15–20% better compression than gzip for text, supported by all modern browsers). Enabling compression is one […]

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