July 2021 - Page 58 of 69

How To Construct While Loops in Python 3 — step-by-step Python tutorial on Progressive Robot

How To Construct While Loops in Python 3

A while loop implements the repeated execution of code based on a given Boolean condition. The code that is in a while block will execute as long as the while statement evaluates to True. In this tutorial, we will go over how while loops work and how to construct them.

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How to Set Up a Kubernetes Dashboard on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Set Up a Kubernetes Dashboard on RHEL 9

The Kubernetes Dashboard is a general-purpose, web-based UI for Kubernetes clusters that allows users to manage applications, inspect cluster resources, view logs, and troubleshoot issues without using the kubectl CLI. It provides a visual overview of all workloads in the cluster — deployments, pods, services, ingress rules, storage, and RBAC configuration — making it accessible […]

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AlmaLinux 8 — container-exception-logger — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — container-exception-logger — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2019:3471 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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AlmaLinux 8 — exiv2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — exiv2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2021:3152 Related CVEs: CVE-2021-31291 CVE-2020-18898 CVE-2021-29457 CVE-2021-29458 CVE-2021-29463 CVE-2021-29464 CVE-2021-29470 CVE-2021-29473  +12 more Upstream summary: Exiv2 is a C++ library to access image metadata, supporting read and write access to the Exif, […]

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Common Problems 125173

Oracle Linux 8 – Common Problem 021 – Diagnosis and Fix

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: Oracle Linux 8 📖 ~3 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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openSUSE Tumbleweed — libtinyobjloader2 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libtinyobjloader2 — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2020-28589 Upstream summary: An improper array index validation vulnerability exists in the LoadObj functionality of tinyobjloader v2.0-rc1 and tinyobjloader development commit 79d4421. A specially crafted […]

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Common Problems 116035

Ubuntu 26.04 LTS – Swap re-enabled unexpectedly and breaks kubelet policy – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Ubuntu 26.04 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 […]

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openSUSE Tumbleweed — cni — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — cni — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2021-38561 CVE-2021-20206 Upstream summary: golang.org/x/text/language in golang.org/x/text before 0.3.7 can panic with an out-of-bounds read during BCP 47 language tag parsing. Index calculation is mishandled. […]

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How to Install Zabbix on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install Zabbix on FreeBSD 13

Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up install zabbix on freebsd 13 on FreeBSD 13 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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Arch Linux — git — multiple vulnerabilities (13 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — git — multiple vulnerabilities (13 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201806-1 Related CVEs: CVE-2018-11235 CVE-2018-11233 CVE-2017-1000117 CVE-2020-11008 CVE-2020-5260 CVE-2019-19604 CVE-2019-1387 CVE-2019-1352  +5 more Upstream summary: Type: multiple issues. Status: Fixed. Affected: 2.17.0-1. Fixed in: 2.17.1-1. Group: AVG-711. Table of contents […]

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