Logging Monitoring

How to Configure Infrastructure as Code on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure Infrastructure as Code on FreeBSD 12

Introduction This guide explains how to Configure Infrastructure as Code on FreeBSD 12 on FreeBSD 12. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained […]

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SLES 12 — libyaml-cpp0_5 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — libyaml-cpp0_5 — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 24 December 2019 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2022:1765-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-20573 CVE-2018-20574 CVE-2019-6285 CVE-2019-6292 CVE-2017-5950 Upstream summary: The Scanner::EnsureTokensInQueue function in yaml-cpp (aka LibYaml-C++) 0.6.2 allows remote attackers to cause a denial of service (stack […]

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How to Configure Web Application Proxy on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Web Application Proxy on Windows Server 2019

How to Configure Web Application Proxy on Windows Server 2019 Web Application Proxy (WAP) is a reverse proxy role service in Remote Access on Windows Server 2019 that provides secure external access to applications hosted on internal servers. It acts as a pre-authentication gateway, validating user credentials via AD FS before forwarding requests to backend […]

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How to Sync Time with Chrony on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Sync Time with Chrony on RHEL 8

Accurate system time is essential for security certificates, log correlation, scheduled jobs, and Kerberos authentication. RHEL 8 ships with Chrony as its default NTP implementation, replacing the older ntpd daemon. Chrony is faster to synchronize on startup, handles intermittent network connections well, and is better suited to virtual machines. This guide covers installing and configuring […]

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openSUSE Tumbleweed — groff — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — groff — multiple vulnerabilities (3 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-2009-5044 CVE-2009-5080 CVE-2009-5081 Upstream summary: contrib/pdfmark/pdfroff.sh in GNU troff (aka groff) before 1.21 allows local users to overwrite arbitrary files via a symlink attack on […]

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Common Problems 112962

Windows Server 2016 — DHCP scope exhaustion caused by stale reservations and delayed lease reclamation — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 23 December 2019 Affected versions: Windows Server 2016 📖 ~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 Errors […]

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

How to Configure Cloud-Init 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 cloud-init on ibm aix 7.1 on IBM AIX […]

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FreeBSD 12 — php55-odbc — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — php55-odbc — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 23 December 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php — multiple vulnerabilities Related CVEs: CVE-2015-8879 CVE-2016-5385 CVE-2016-5399 CVE-2016-6288 CVE-2016-6289 CVE-2016-6290 CVE-2016-6291 CVE-2016-6292  +4 more Upstream summary: PHP reports: Fixed bug #69975 (PHP segfaults when accessing nvarchar(max) defined columns) […]

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FreeBSD 12 — linux-ibm-jdk — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — linux-ibm-jdk — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 23 December 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: jdk — jar directory traversal vulnerability Related CVEs: CVE-2004-1029 CVE-2005-1080 Upstream summary: Pluf has discovered a vulnerability in Sun Java JDK/SDK, which potentially can be exploited by malicious people to […]

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

FreeBSD 12 — exim-sa-exim — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 23 December 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: exim — local privilege escalation Related CVEs: CVE-2005-0021 CVE-2005-0022 CVE-2011-0017 Upstream summary: exim.org reports: CVE-2011-0017 – check return value of setuid/setgid. This is a privilege escalation vulnerability whereby the Exim […]

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