DNS

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

How to Install Memcached on FreeBSD 14

Introduction FreeBSD 14 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up install memcached on freebsd 14 on FreeBSD 14 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 distribution. This […]

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How to Set Up the Elastic Stack ELK on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Set Up the Elastic Stack ELK on Debian 12

Introduction This guide explains how to Set Up the Elastic Stack ELK 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 […]

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How to Configure Static IP on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure Static IP on Debian 12

Introduction Deploying configure static ip 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 begin, […]

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How to Use Python Virtual Environments on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Use Python Virtual Environments on FreeBSD 14

Introduction Deploying use python virtual environments 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 standard […]

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NetBSD 9.4 — ldns — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — ldns — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2009-1086 CVE-2011-3581 CVE-2017-1000231 CVE-2017-1000232 CVE-2014-3209 CVE-2020-19860 CVE-2020-19861 Upstream summary: pkgsrc audit-packages flagged ldns<1.5.1 for vulnerability class 'arbitrary-code-execution'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1086 Table of contents Symptom & Impact Environment & Reproduction Root […]

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How to Set Up PostgreSQL Streaming Replication on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Set Up PostgreSQL Streaming Replication on FreeBSD 14

Introduction How to Set Up PostgreSQL Streaming Replication 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 […]

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Common Problems 114563

RHEL 9 Apache fails due to incorrect SELinux booleans

🟡 Medium   ⏱ 5–30 min  Last verified: 29 November 2023 📖 ~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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Common Problems 120192

Debian 12 – cron jobs do not run because timers or cron service are disabled

🟡 Medium   ⏱ 5–30 min  Last verified: 28 November 2023 Affected versions: Debian 12 📖 ~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 119047

SSH Public Key Authentication Fails on Ubuntu 14.04

🟡 Medium   ⏱ 5–30 min  Last verified: 28 November 2023 📖 ~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 Install Caddy Web Server on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Install Caddy Web Server on FreeBSD 14

Introduction FreeBSD 14 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up install caddy web server on freebsd 14 on FreeBSD 14 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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