Operations

Ubuntu 14.04 — python2.7 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — python2.7 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • July 27, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 27 July 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8018-3 Related CVEs: CVE-2026-0672 CVE-2025-15282 CVE-2025-12084 CVE-2026-0865 CVE-2025-0938 CVE-2024-11168 https://launchpad.net/bugs/2125702 CVE-2025-8194  +12 more Upstream summary: USN-8018-1 fixed CVE-2025-12084, CVE-2025-15282, CVE-2026-0672, CVE-2026-0865 for python3. This update provides the corresponding updates for […]

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Ubuntu 22.04 — linux — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — linux — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • July 27, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 27 July 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8279-1 Related CVEs: CVE-2024-35862 CVE-2024-50060 CVE-2026-23274 CVE-2026-23351 CVE-2026-31419 CVE-2026-31431 CVE-2026-31504 CVE-2026-31533  +12 more Upstream summary: It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic […]

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Fedora 42 — prosody — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Fedora 42

Fedora 42 — prosody — multiple vulnerabilities (4 CVEs) — patch and remediation guide

  • July 27, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Fedora 42 📖 ~4 min read  •  Source: Fedora update FEDORA-2026-1efa008794 Related CVEs: CVE-2026-43507 CVE-2026-43504 CVE-2026-43505 CVE-2026-43506 Upstream summary: # Prosody 13.0.5 Upstream is pleased to announce a new minor release from their stable branch. This is a security release for the […]

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Common Problems 113929

RHEL 10 – systemd service fails to start with Exec format error – Fix & Prevention

  • July 26, 2026
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 26 July 2026 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~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 […]

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AlmaLinux 9 — libpng — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — libpng — multiple vulnerabilities (8 CVEs) — patch and remediation guide

  • July 26, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2026:3405 Related CVEs: CVE-2026-22695 CVE-2026-22801 CVE-2026-25646 CVE-2025-64720 CVE-2025-65018 CVE-2025-66293 CVE-2026-33416 CVE-2026-33636 Upstream summary: The libpng packages contain a library of functions for creating and manipulating Portable Network Graphics (PNG) image format files. […]

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How to Configure Nginx Rate Limiting on SLES 16 — step-by-step SUSE Linux Enterprise 16 tutorial on Progressive Robot

How to Configure Nginx Rate Limiting on SLES 16

Introduction This tutorial covers How to Configure Nginx Rate Limiting on SLES 16 on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 16 system is up to date: zypper […]

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How to Configure Redis Sentinel on SLES 16 — step-by-step SUSE Linux Enterprise 16 tutorial on Progressive Robot

How to Configure Redis Sentinel on SLES 16

Introduction This tutorial covers How to Configure Redis Sentinel on SLES 16 on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 16 system is up to date: zypper refresh […]

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How to Set Up a Private Docker Registry on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Configure Docker Networking on Ubuntu 26.04

  • July 26, 2026
  • Linux
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Docker networking enables containers to communicate with each other, the host, and external networks. Docker provides several network drivers: bridge, host, overlay, macvlan, and none. Understanding these is essential for secure and efficient container deployments. This guide configures Docker networking on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS […]

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How to Enable HTTP/2 in Nginx on SLES 16 — step-by-step SUSE Linux Enterprise 16 tutorial on Progressive Robot

How to Enable HTTP/2 in Nginx on SLES 16

Introduction This tutorial covers How to Enable HTTP/2 in Nginx on SLES 16 on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 16 system is up to date: zypper […]

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FreeBSD 15 — php72-imap — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — php72-imap — security advisory — patch and remediation guide

  • July 26, 2026
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 26 July 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php-imap — imap_open allows to run arbitrary shell commands via mailbox parameter Upstream summary: The PHP team reports: imap_open allows to run arbitrary shell commands via mailbox parameter. Table of […]

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