Security Hardening

How to Configure DNS Logging and Diagnostics on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure DNS Logging and Diagnostics on Windows Server 2019

Introduction to DNS Logging and Diagnostics on Windows Server 2019 DNS logging and diagnostics are essential for troubleshooting resolution failures, detecting security threats, meeting compliance requirements, and understanding traffic patterns on your network. Windows Server 2019 provides two distinct logging mechanisms for DNS: the Windows Event Log (structured event data, always on) and the DNS […]

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FreeBSD 12 — opus-tools — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — opus-tools — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 3 July 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: vorbis-tools, opus-tools — multiple vulnerabilities Related CVEs: CVE-2014-9638 CVE-2014-9639 CVE-2015-6749 Upstream summary: Paris Zoumpouloglou reports: I discovered an integer overflow issue in oggenc, related to the number of channels in […]

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 3 July 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: scponly — local privilege escalation exploits Upstream summary: Max Vozeler reports: If ALL the following conditions are true, administrators using scponly-4.1 or older may be at risk of a local […]

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openSUSE Tumbleweed — prboom-plus — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — prboom-plus — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2020:0807-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-20797 Upstream summary: An issue was discovered in e6y prboom-plus 2.5.1.5. There is a buffer overflow in client and server code responsible for handling received […]

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Ubuntu 16.04 — exempi — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — exempi — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 3 July 2019 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-3668-1 Related CVEs: CVE-2017-18233 CVE-2017-18234 CVE-2017-18236 CVE-2017-18238 CVE-2018-7728 CVE-2018-7729 CVE-2018-7730 CVE-2018-7731 Upstream summary: It was discovered that Exempi incorrectly handled certain media files. If a user or automated system were […]

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Common Problems 118598

Cloud-init stalls first boot networking on cloned images

🟡 Medium   ⏱ 5–30 min  Last verified: 2 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 […]

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How to Set Up a Git Server with Gitea on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up a Git Server with Gitea on FreeBSD 12

Introduction How to Set Up a Git Server with Gitea on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, […]

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openSUSE Tumbleweed — viewvc — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — viewvc — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2012-3356 CVE-2012-3357 Upstream summary: The remote SVN views functionality (lib/vclib/svn/svn_ra.py) in ViewVC before 1.1.15 does not properly perform authorization, which allows remote attackers to bypass […]

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Common Problems 113000

Windows Server 2016 — DNS resolution times out for external hosts — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 2 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 […]

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How to Configure tcpdump on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure tcpdump 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 configure tcpdump on ibm aix 7.1 on IBM AIX […]

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