Security Hardening

How to Configure sysutils/check_mk_agent on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure sysutils/check_mk_agent on FreeBSD 13

Introduction Deploying configure sysutils/check_mk_agent on freebsd 13 on a FreeBSD 13 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base + […]

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Debian 11 — binpac — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — binpac — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 10 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-9586 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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SLES 15 — wavpack — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — wavpack — multiple vulnerabilities (15 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 10 December 2021 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:0186-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-10536 CVE-2018-10537 CVE-2018-6767 CVE-2020-35738 CVE-2021-44269 CVE-2018-10538 CVE-2018-10539 CVE-2018-10540  +7 more Upstream summary: An issue was discovered in WavPack 5.1.0 and earlier. The WAV parser component […]

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How to Configure PHP Session Handling on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Configure PHP Session Handling on CentOS Stream 9

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying configure php session handling on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure PHP Session Handling on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]

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AlmaLinux 8 — http-parser — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — http-parser — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALEA-2020:1607 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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AlmaLinux 8 — scap-workbench — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — scap-workbench — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2021:1936 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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FreeBSD 13 — bacula — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — bacula — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 December 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: bacula — Console ACL Bypass Related CVEs: CVE-2012-4430 Upstream summary: A security issue has been reported in Bacula, which can be exploited by malicious users to bypass certain security restrictions. […]

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

How to Configure XFS on SLES 12

Introduction This tutorial covers How to Configure XFS 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 && […]

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