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Ubuntu 22.04 — u-boot-nezha — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — u-boot-nezha — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 2 October 2022 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6523-1 Related CVEs: CVE-2022-30790 CVE-2022-30552 CVE-2022-2347 Upstream summary: It was discovered that U-Boot incorrectly handled certain USB DFU download setup packets. A local attacker could use this issue to cause […]

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How to Configure Process Resource Manager on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Configure Process Resource Manager on IBM AIX 7.3

Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure process resource manager on IBM AIX 7.3 with […]

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How to Set Up Promtail Log Agent on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up Promtail Log Agent on Debian 11

Introduction Deploying set up promtail log agent on debian 11 on a Debian 11 Bullseye 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 […]

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Common Problems 120479

Debian 11 Network Interface Missing After Reboot

🟠 High   ⏱ 5–30 min  Last verified: 30 September 2022 Affected versions: Debian 11 📖 ~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 Use proctools on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Use proctools on IBM AIX 7.3

Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use proctools on IBM AIX 7.3 with practical examples […]

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How to Install Docker CE on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install Docker CE on Debian 9

Introduction How to Install Docker CE on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch 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 9. This […]

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How to Set Up Suricata IDS/IPS on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up Suricata IDS/IPS on Debian 11

Introduction This guide explains how to Set Up Suricata IDS/IPS on Debian 11 on Debian 11 Bullseye. Debian Bullseye 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 11 install with the […]

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Common Problems 114603

RHEL 9 NFS mount unavailable after boot sequence

🟡 Medium   ⏱ 5–30 min  Last verified: 29 September 2022 📖 ~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 Use SMIT to Manage System Tasks on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Use SMIT to Manage System Tasks on IBM AIX 7.3

Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use smit to manage system tasks on IBM AIX […]

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How to Set Up pgBouncer Connection Pooler on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up pgBouncer Connection Pooler on Debian 11

Introduction Deploying set up pgbouncer connection pooler on debian 11 on a Debian 11 Bullseye 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 Ensure […]

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