Package Management

Ubuntu 20.04 — zfs-linux — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — zfs-linux — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 November 2020 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6511-1 Related CVEs: CVE-2013-20001 Upstream summary: It was discovered that the OpenZFS sharenfs feature incorrectly handled IPv6 address data. This could result in IPv6 restrictions not being applied, contrary to […]

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Oracle Linux 8 — firefox — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — firefox — vulnerability — patch and remediation guide (ELSA-2019-4111)

🔴 Critical   ⏱ 15–90 min  Last verified: 27 November 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-4111 Related CVEs: CVE-2019-17010 CVE-2019-17011 CVE-2019-17008 CVE-2019-17012 CVE-2019-17005 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

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Oracle Linux 8 — container-tools:ol8 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — container-tools:ol8 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2022-7822)

🟢 Low   ⏱ 5–15 min  Last verified: 26 November 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-7822 Related CVEs: CVE-2022-2990 CVE-2022-2989 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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How to Use mkitab and lsitab to Manage inittab on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Use mkitab and lsitab to Manage inittab on IBM AIX 7.2

Introduction IBM AIX 7.2 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 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use mkitab and lsitab to manage inittab on ibm […]

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How to Install WooCommerce on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Install WooCommerce on Oracle Linux 8

Introduction Setting up install woocommerce on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Install WooCommerce on Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and […]

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SLES 15 — velocity — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — velocity — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 26 November 2020 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:0800-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-13936 Upstream summary: An attacker that is able to modify Velocity templates may execute arbitrary Java code or run arbitrary system commands with the same […]

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How to Install and Configure Dovecot IMAP Server on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install and Configure Dovecot IMAP Server on RHEL 8

Dovecot is a high-performance, secure IMAP and POP3 server that works seamlessly alongside Postfix to deliver a complete mail server stack on RHEL 8. While Postfix handles sending and receiving mail via SMTP, Dovecot allows mail clients like Thunderbird or Outlook to retrieve messages using IMAP or POP3. Dovecot is also SELinux-aware and actively maintained, […]

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Oracle Linux 8 — samba security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — samba security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2020-1878)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 November 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-1878 Related CVEs: CVE-2019-10197 CVE-2019-14907 CVE-2019-10218 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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Arch Linux — lldpd — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — lldpd — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202101-29 Related CVEs: CVE-2020-27827 Upstream summary: Type: information disclosure. Status: Fixed. Affected: 1.0.7-1. Fixed in: 1.0.8-1. Group: AVG-1451. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

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How to Configure SNMP Traps on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure SNMP Traps on IBM AIX 7.1

Introduction IBM AIX 7.1 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 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure snmp traps on ibm aix 7.1 on IBM […]

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