Package Management

SLES 15 — perl-DBI — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — perl-DBI — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 6 December 2020 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2020:14510-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-20919 CVE-2020-14392 CVE-2020-14393 CVE-2014-10401 CVE-2014-10402 Upstream summary: An issue was discovered in the DBI module before 1.643 for Perl. The hv_fetch() documentation requires checking for […]

Read more
Oracle Linux 8 — flatpak-builder — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — flatpak-builder — security and stability fixes — required update (ELSA-2022-7458)

🟡 Medium   ⏱ 10–30 min  Last verified: 5 December 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-7458 Related CVEs: CVE-2022-21682 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
Common Problems 117406

Ubuntu 20.04 LTS – unattended-upgrades causes sustained CPU usage – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 5 December 2020 Affected versions: Ubuntu 20.04 LTS 📖 ~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 […]

Read more
Alpine Linux edge — libmaxminddb — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — libmaxminddb — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.4.3-r0 📖 ~4 min read  •  Source: Alpine secdb entry — libmaxminddb 1.4.3-r0 Related CVEs: CVE-2020-28241 Upstream summary: Alpine main repository for vedge ships libmaxminddb 1.4.3-r0 which addresses CVE-2020-28241. Table of contents Symptom & Impact Environment […]

Read more
How to Configure PostgreSQL High Availability with Patroni on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure PostgreSQL High Availability with Patroni on Oracle Linux 8

Introduction This tutorial demonstrates how to Configure PostgreSQL High Availability with Patroni on Oracle Linux 8 on Oracle Linux 8. 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 Oracle Linux 8 system […]

Read more
Oracle Linux 8 — container-tools:4.0 — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — container-tools:4.0 — security and stability fixes — required update (ELSA-2023-7202)

🟡 Medium   ⏱ 10–30 min  Last verified: 4 December 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-7202 Related CVEs: CVE-2023-29406 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
How to Set Up Samba File Sharing on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Set Up Samba File Sharing on SLES 12

Introduction This tutorial covers How to Set Up Samba File Sharing on SLES 12 on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to date: […]

Read more
Ubuntu 18.04 — crawl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — crawl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 December 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7969-1 Related CVEs: CVE-2020-11722 Upstream summary: David Mendenhall discovered that Dungeon Crawl Stone Soup was incorrectly handling Lua bytecode embedded in an uploaded .crawlrc file. An attacker could possibly use […]

Read more
How to Upgrade Oracle Linux 7 to Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Upgrade Oracle Linux 7 to Oracle Linux 8

Introduction Setting up upgrade oracle linux 7 to 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 Upgrade Oracle Linux 7 to Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to […]

Read more
How to Install MariaDB on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install MariaDB on RHEL 7

How to Install MariaDB on RHEL 7 MariaDB is a community-developed, fully open-source relational database management system that serves as the default MySQL-compatible database engine on Red Hat Enterprise Linux 7. Maintained by the original developers of MySQL, MariaDB offers full SQL compliance, excellent performance, and a rich set of storage engines. Because RHEL 7 […]

Read more
CHAT