Systemd Services

SLES 15 — aspell — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — aspell — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:14783-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-25051 Upstream summary: objstack in GNU Aspell 0.60.8 has a heap-based buffer overflow in acommon::ObjStack::dup_top (called from acommon::StringMap::add and acommon::Config::lookup_list). Table of contents Symptom & […]

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FreeBSD 12 — gnutls — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — gnutls — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: GnuTLS — Stack write buffer overflow Related CVEs: CVE-2006-4790 CVE-2008-2377 CVE-2008-4989 CVE-2009-1415 CVE-2009-1416 CVE-2009-1417 CVE-2009-2730 CVE-2011-4128  +12 more Upstream summary: GnuTLS reports: When a PKCS#11 token is initialized with gnutls_pkcs11_token_init […]

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FreeBSD 12 — gnome-screensaver — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — gnome-screensaver — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: gnome-screensaver — Multiple monitor hotplug issues Related CVEs: CVE-2010-0414 CVE-2010-0422 Upstream summary: Ray Strode reports: Under certain circumstances it is possible to circumvent the security of screen locking functionality of […]

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Common Problems 113431

Windows Server 2012 R2 — Windows Time (W32Time) service drift and sync failures — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 03 May 2027 Affected versions: Windows Server 2012 R2 📖 ~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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How to Monitor Nginx with Prometheus on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Monitor Nginx with Prometheus on FreeBSD 12

Introduction FreeBSD 12 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up monitor nginx with prometheus on freebsd 12 on FreeBSD 12 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux […]

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FreeBSD 12 — evolution-data-server — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — evolution-data-server — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: evolution-data-server — remote execution of arbitrary code vulnerability Related CVEs: CVE-2007-3257 Upstream summary: Debian project reports: It was discovered that the IMAP code in the Evolution Data Server performs insufficient […]

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Common Problems 112526

Windows Server 2019 — DNS Server service fails to load primary zone — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 03 May 2027 Affected versions: Windows Server 2019 📖 ~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 Errors […]

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How to Set Up Nagios on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up Nagios on Debian 9

Introduction This guide explains how to Set Up Nagios on Debian 9 on Debian 9 Stretch. Debian Stretch 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 9 install with the standard […]

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FreeBSD 12 — bmon — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — bmon — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: bmon — unsafe set-user-ID application Upstream summary: Jon Nistor reported that the FreeBSD port of bmon was installed set-user-ID root, and executes commands using relative paths. This could allow local […]

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How to Configure OpenSSH Server on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure OpenSSH Server on Windows Server 2019

OpenSSH Server on Windows Server 2019 Windows Server 2019 ships with OpenSSH as an optional Windows capability. Installing the OpenSSH Server component provides a native SSH daemon (sshd) that allows Linux administrators, developers, and automation tools to manage Windows servers using the same SSH workflow they use for Linux—including key-based authentication, SFTP file transfer, and […]

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