Windows Server 2025 — KB5068840 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

September 13, 2025
Windows Server
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🔴 Critical ⏱ 15–90 min Last verified: 25 May 2026 Affected versions: Windows Server 2025 📖 ~4 min read • Source: Microsoft KB5068840 • MSRC update-guide entry Related CVEs: CVE-2025-60716 CVE-2025-60724 CVE-2025-64678 CVE-2025-59505 CVE-2025-59506 CVE-2025-59507 CVE-2025-59508 CVE-2025-59509 +12 more Affected components: Windows Server 2025 Microsoft summary: Use after free in Windows DirectX allows an […]

Windows Server 2019 — KB5063906 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

September 13, 2025
Windows Server
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🔴 Critical ⏱ 15–90 min Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read • Source: Microsoft KB5063906 • MSRC update-guide entry Related CVEs: CVE-2025-50177 CVE-2025-53766 CVE-2025-53778 CVE-2025-49743 CVE-2025-49761 CVE-2025-49762 CVE-2025-50153 CVE-2025-50154 +12 more Affected components: Windows Server 2019 (Server Core installation) Microsoft summary: Use after free in Windows […]

How to Configure the GRUB Bootloader on Debian 13

September 13, 2025
Linux
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Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up configure the grub bootloader 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 […]

How to Configure Samba File Server on Debian 13

September 12, 2025
Linux
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Introduction Deploying configure samba file server on a Debian 13 Trixie machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you begin, ensure you […]

How to Configure OpenDKIM with Postfix on RHEL 10

September 12, 2025
Linux
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Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying configure opendkim with postfix both straightforward and auditable. This tutorial covers the complete procedure for how to Configure OpenDKIM with Postfix on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. Prerequisites The […]

How to Enable HTTPS with Let’s Encrypt on Nginx Debian 13

September 12, 2025
Linux
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Introduction Deploying enable https with let’s encrypt on nginx debian 13 on a Debian 13 Trixie machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites […]

Windows Server 2025 — KB5062592 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

September 11, 2025
Windows Server
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🔴 Critical ⏱ 15–90 min Last verified: 25 May 2026 Affected versions: Windows Server 2025 📖 ~4 min read • Source: Microsoft KB5062592 • MSRC update-guide entry Related CVEs: CVE-2025-47980 CVE-2025-47981 CVE-2025-55230 CVE-2025-49757 CVE-2025-47971 CVE-2025-47976 CVE-2025-47984 CVE-2025-47985 +12 more Affected components: Windows Server 2025 Microsoft summary: Exposure of sensitive information to an unauthorized actor […]

How to Install BIND9 DNS Server on Debian 13

September 11, 2025
Linux
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Introduction How to Install BIND9 DNS Server 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. […]

Windows Server 2016 — KB5049622 — security update — patch and remediation guide

September 11, 2025
Windows Server
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🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Windows Server 2016 📖 ~4 min read • Source: Microsoft KB5049622 • MSRC update-guide entry Related CVEs: CVE-2025-21176 Affected components: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

Windows Server 2016 — KB5052106 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

September 11, 2025
Windows Server
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🔴 Critical ⏱ 15–90 min Last verified: 25 May 2026 Affected versions: Windows Server 2016 📖 ~4 min read • Source: Microsoft KB5052106 • MSRC update-guide entry Related CVEs: CVE-2025-21376 CVE-2025-21351 CVE-2025-21352 CVE-2025-21368 CVE-2025-21369 CVE-2025-21375 CVE-2025-21391 CVE-2025-21418 +12 more Affected components: Windows Server 2016 Table of contents Symptom & Impact Environment & Reproduction Root […]

windows server

Windows Server 2025 — KB5068840 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

Windows Server 2019 — KB5063906 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

How to Configure the GRUB Bootloader on Debian 13

How to Configure Samba File Server on Debian 13

How to Configure OpenDKIM with Postfix on RHEL 10

How to Enable HTTPS with Let’s Encrypt on Nginx Debian 13

Windows Server 2025 — KB5062592 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

How to Install BIND9 DNS Server on Debian 13

Windows Server 2016 — KB5049622 — security update — patch and remediation guide

Windows Server 2016 — KB5052106 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

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