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NetBSD 9.4 — bind-8.[0-9]* — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — bind — vulnerability — patch and remediation guide

  • January 18, 2024
  • BSD
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2008-1447 Upstream summary: pkgsrc audit-packages flagged bind for vulnerability class 'cache-poisoning'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1447 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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Common Problems 114450

SELinux Denial Prevents Service Operation

🟡 Medium   ⏱ 5–30 min  Last verified: 17 January 2024 📖 ~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 Configure OpenVPN Server on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Configure OpenVPN Server on FreeBSD 14

  • January 16, 2024
  • FreeBSD
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Introduction This guide explains how to Configure OpenVPN Server on FreeBSD 14 on FreeBSD 14. 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 privilege […]

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How to Install k3s Kubernetes on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Install k3s Kubernetes on FreeBSD 14

  • January 16, 2024
  • FreeBSD
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Introduction How to Install k3s Kubernetes on FreeBSD 14 is a core administration task for any FreeBSD 14 server operator. FreeBSD 14 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, pf for packet filtering, […]

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How to Back Up PostgreSQL with pg_dump on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Back Up PostgreSQL with pg_dump on FreeBSD 14

  • January 16, 2024
  • FreeBSD
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Introduction Deploying back up postgresql with pg_dump on freebsd 14 on a FreeBSD 14 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 […]

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How to Configure cAdvisor Container Metrics on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure cAdvisor Container Metrics on Debian 12

  • January 16, 2024
  • Linux
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Introduction How to Configure cAdvisor Container Metrics on Debian 12 is a fundamental operation for any administrator maintaining a Debian 12 Bookworm server. Debian 12 Bookworm ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 12. […]

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How to Configure Zabbix Agent on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure Zabbix Agent on Debian 12

  • January 16, 2024
  • Linux
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Introduction This guide explains how to Configure Zabbix Agent on Debian 12 on Debian 12 Bookworm. Debian Bookworm uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 12 install with the standard […]

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Ubuntu 20.04 — unbound — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — unbound — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • January 15, 2024
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 15 January 2024 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7080-1 Related CVEs: CVE-2024-8508 CVE-2024-43167 CVE-2024-43168 CVE-2024-33655 CVE-2023-50387 CVE-2023-50868 CVE-2022-3204 CVE-2022-30698  +12 more Upstream summary: Toshifumi Sakaguchi discovered that Unbound incorrectly handled name compression for large RRsets, which could lead […]

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How to Configure OpenTelemetry Collector on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Configure OpenTelemetry Collector on CentOS Stream 9

  • January 14, 2024
  • CentOS
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Introduction Setting up configure opentelemetry collector on centos stream 9 on a CentOS Stream 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure OpenTelemetry Collector on CentOS Stream 9, with all the commands you need, the SELinux and firewalld considerations to keep in […]

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How to Set Up Podman Compose on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Set Up Podman Compose on Debian 12

  • January 14, 2024
  • Linux
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Introduction Deploying set up podman compose on debian 12 on a Debian 12 Bookworm machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you […]

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