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How to Use Skopeo for Container Image Management on Debian 12

• December 4, 2023
• Linux
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Introduction Deploying use skopeo for container image management 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 […]

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How to Configure Nginx Rate Limiting on CentOS Stream 9

• December 3, 2023
• CentOS
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Introduction This tutorial demonstrates how to Configure Nginx Rate Limiting on CentOS Stream 9 on CentOS Stream 9. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered CentOS Stream 9 system with the […]

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Debian 12 ext4 Filesystem Remounted Read-Only After I/O Errors

• December 3, 2023
• Linux
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🔴 Critical   ⏱ 5–30 min  Last verified: 3 December 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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How to Monitor Nginx Logs with GoAccess on FreeBSD 14

• December 3, 2023
• FreeBSD
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Introduction This guide explains how to Monitor Nginx Logs with GoAccess 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 […]

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FreeBSD 14 — bind910-base — multiple vulnerabilities (5 CVEs) — patch and remediation guide

• December 3, 2023
• BSD
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🟡 Medium   ⏱ 10–30 min  Last verified: 3 December 2023 Affected versions: FreeBSD 14 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: bind — denial of service vulnerability Related CVEs: CVE-2015-1349 CVE-2015-4620 CVE-2015-5477 CVE-2015-5722 CVE-2015-5986 Upstream summary: ISC reports: An incorrect boundary check in openpgpkey_61.c can cause named to terminate due to […]

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How to Build Docker Images with Multi-Stage Builds on FreeBSD 14

• December 3, 2023
• FreeBSD
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Introduction Deploying build docker images with multi-stage builds 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 […]

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How to Set Up Alertmanager Email Notifications on Debian 12

• December 3, 2023
• Linux
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Introduction Deploying set up alertmanager email notifications 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 You […]

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How to Install Lighttpd on Debian 12

• December 3, 2023
• Linux
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Introduction How to Install Lighttpd 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. This tutorial […]

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How to Install Vault for Secrets Management on FreeBSD 14 (FREEBSD-14-2)

• December 2, 2023
• FreeBSD
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Introduction How to Install Vault for Secrets Management 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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How to Install Ansible on FreeBSD 14

• December 2, 2023
• FreeBSD
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Introduction How to Install Ansible 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, and […]

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