Logging Monitoring

openSUSE Tumbleweed — slf4j — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — slf4j — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2018:1625-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-8088 Upstream summary: org.slf4j.ext.EventData in the slf4j-ext module in QOS.CH SLF4J before 1.8.0-beta2 allows remote attackers to bypass intended access restrictions via crafted data. EventData […]

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Common Problems 119111

Ubuntu 14.04 LTS failed unattended upgrades leave security patches unapplied

🟠 High   ⏱ 5–30 min  Last verified: 26 June 2019 Affected versions: 14.04 14.04.6 📖 ~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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Common Problems 113545

Windows Server 2012 R2 — NLB cluster convergence loops after adding new node with mismatched host priority — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 26 June 2019 Affected versions: Windows Server 2012 R2 📖 ~2 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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Common Problems 112921

Windows Server 2016 — WSUS Scan Returns 0x8024401c Timeout During Patch Cycle — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 26 June 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 […]

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How to Set Up GitLab Runner on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up GitLab Runner 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 set up gitlab runner 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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Ubuntu 18.04 — corosync — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — corosync — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 26 June 2019 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4000-1 Related CVEs: CVE-2018-1084 Upstream summary: It was discovered that Corosync incorrectly handled certain requests. An attacker could possibly use this issue to cause a denial of service or execute […]

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SLES 15 — python3-dulwich — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — python3-dulwich — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 26 June 2019 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE security advisory Related CVEs: CVE-2015-0838 CVE-2017-16228 Upstream summary: Buffer overflow in the C implementation of the apply_delta function in _pack.c in Dulwich before 0.9.9 allows remote attackers to execute arbitrary code via a […]

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How to Install and Configure Caddy Web Server on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install and Configure Caddy Web Server on RHEL 7

How to Install and Configure Caddy Web Server on RHEL 7 Caddy is a modern, open-source web server written in Go that sets itself apart from traditional servers like Apache and Nginx through its automatic HTTPS provisioning, minimal configuration syntax, and zero-dependency binary distribution. On RHEL 7, where the standard repositories do not include Caddy, […]

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