Logging Monitoring

FreeBSD 12 — rubygem-activejob — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — rubygem-activejob — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 March 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Rails — Active Job vulnerability Related CVEs: CVE-2018-16476 Upstream summary: Ruby on Rails blog: Rails 4.2.11, 5.0.7.1, 5.1.6.1 and 5.2.1.1 have been released! These contain the following important security fixes, […]

Read more
How to Configure RRAS on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure RRAS on Windows Server 2016

How to Configure Windows Server 2016 Routing and Remote Access The Routing and Remote Access Service (RRAS) in Windows Server 2016 provides software-based routing, VPN gateway, and dial-up remote access capabilities. RRAS can function as an IPv4 and IPv6 router connecting multiple network segments, a NAT gateway for internet sharing, a site-to-site VPN endpoint using […]

Read more
Debian 9 — e2fsprogs — vulnerability — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — e2fsprogs — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 March 2020 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-5094 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
Debian 9 — ffmpeg — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — ffmpeg — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 18 March 2020 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-9608 CVE-2017-14054 CVE-2017-15186 CVE-2017-17081 CVE-2018-6392 CVE-2018-14395 CVE-2018-15822 CVE-2019-12730 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix […]

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

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

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202101-42 Related CVEs: CVE-2020-25637 CVE-2020-14339 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 1:6.5.0-3. Fixed in: 1:7.0.0-1. Group: AVG-1240. Table of contents Symptom & Impact Environment & Reproduction Root […]

Read more
How to Manage Docker Images and Containers on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Manage Docker Images and Containers on RHEL 7

How to Manage Docker Images and Containers on RHEL 7 Effective day-to-day use of Docker requires a solid command of image and container management. Images are the read-only blueprints from which containers are created; containers are the running (or stopped) instances of those images. Over time, a Docker host accumulates pulled images, stopped containers, dangling […]

Read more
Common Problems 115559

RHEL 7 rsyslog not forwarding logs to remote collector

🟡 Medium   ⏱ 5–30 min  Last verified: 17 March 2020 Affected versions: RHEL 7 📖 ~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
Common Problems 115070

UTF-8 locale not configured correctly

🟡 Medium   ⏱ 5–30 min  Last verified: 17 March 2020 📖 ~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
Common Problems 112953

Windows Server 2016 — WinRM service unavailable for remote management — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 17 March 2020 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
Alpine Linux edge — cairo — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — cairo — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.17.4-r1 📖 ~4 min read  •  Source: Alpine secdb entry — cairo 1.17.4-r1 Related CVEs: CVE-2019-6462 CVE-2020-35492 CVE-2018-19876 Upstream summary: Alpine main repository for vedge ships cairo 1.17.4-r1 which addresses CVE-2019-6462. Table of contents Symptom & […]

Read more
CHAT