Security Hardening

How to Configure Node Exporter on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Configure Node Exporter on SLES 12

Introduction This tutorial covers How to Configure Node Exporter on SLES 12 on SLES 12. SLES 12 (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 12 system is up to date: zypper refresh […]

Read more
Common Problems 112940

Windows Server 2016 — System volume marked dirty causes prolonged boot checks — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 18 July 2019 Affected versions: Windows Server 2016 📖 ~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 […]

Read more
How to Set Up Go Lang on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Set Up Go Lang on IBM AIX 7.1

Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to set up go lang on ibm aix 7.1 on […]

Read more
Amazon Linux 2 — libvirt — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — libvirt — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2019-1274 Related CVEs: CVE-2018-12126 CVE-2018-12127 CVE-2018-12130 CVE-2019-10132 CVE-2019-10161 CVE-2019-10166 CVE-2019-10167 CVE-2019-10168  +12 more Upstream summary: Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially […]

Read more
FreeBSD 12 — pound — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

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

🟢 Low   ⏱ 5–15 min  Last verified: 18 July 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: pound remotely exploitable vulnerability Upstream summary: An unknown remotely exploitable vulnerability was disclosed. Robert Segall writes: a security vulnerability was brought to my attention (many thanks to Akira Higuchi). Everyone […]

Read more
FreeBSD 12 — ripmime — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

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

🟢 Low   ⏱ 5–15 min  Last verified: 18 July 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: ripMIME — decoding bug allowing content filter bypass Upstream summary: ripMIME may prematurely terminate decoding Base64 encoded messages when it encounters multiple blank lines or other non-standard Base64 constructs. Virus […]

Read more
FreeBSD 12 — lighttpd — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — lighttpd — multiple vulnerabilities (19 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 18 July 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: lighttpd – use-after-free vulnerabilities Related CVEs: CVE-2005-0453 CVE-2007-1869 CVE-2007-1870 CVE-2007-3947 CVE-2007-3948 CVE-2007-3949 CVE-2007-3950 CVE-2007-4727  +11 more Upstream summary: Lighttpd Project reports: Security fixes for Lighttpd: security: process headers after combining […]

Read more
Ubuntu 16.04 — patch — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — patch — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 18 July 2019 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4071-1 Related CVEs: CVE-2019-13636 CVE-2019-13638 CVE-2016-10713 CVE-2018-1000156 CVE-2018-6951 Upstream summary: It was discovered that Patch incorrectly handled certain files. An attacker could possibly use this issue to access sensitive information. […]

Read more
SLES 15 — cryptctl — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — cryptctl — vulnerability — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 18 July 2019 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:2136-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-18906 Upstream summary: A Improper Authentication vulnerability in cryptctl of SUSE Linux Enterprise Server for SAP 12-SP5, SUSE Manager Server 4.0 allows attackers with access […]

Read more
Common Problems 118540

Ubuntu 16.04 DNS resolution intermittently fails

🟡 Medium   ⏱ 5–30 min  Last verified: 17 July 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 & Cross-Refs References & Further […]

Read more
CHAT