2020 - Page 19 of 735

Common Problems 115470

SSH Service Unreachable After Configuration Change

🟡 Medium   ⏱ 5–30 min  Last verified: 22 December 2020 📖 ~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 Install CodeIgniter on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Install CodeIgniter on Oracle Linux 8

Introduction This tutorial demonstrates how to Install CodeIgniter 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 with the default AppStream […]

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SLES 12 — libEMF1 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — libEMF1 — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 22 December 2020 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2020:1621-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-11865 CVE-2020-11866 CVE-2020-13999 CVE-2020-11863 CVE-2020-11864 Upstream summary: libEMF (aka ECMA-234 Metafile Library) through 1.0.11 allows out-of-bounds memory access. Table of contents Symptom & Impact Environment […]

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Common Problems 115053

RHEL 8 tuned profile does not persist after reboot

🟡 Medium   ⏱ 5–30 min  Last verified: 22 December 2020 📖 ~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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Understanding plot() Function in R - Basics of Graph Plotting — step-by-step DevOps tutorial on Progressive Robot

Understanding plot() Function in R – Basics of Graph Plotting

URL: https://www.progressiverobot.com/plot-function-in-r/ In this tutorial, let us first begin by understanding the basics using the plot() function in R. The R language is well known for its beautiful graphics with a rich set of functions to build and format any kind of graphs and the plot() function family one that helps us build those. The […]

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How to Install Minio as S3-Compatible Storage on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install Minio as S3-Compatible Storage on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up install minio as s3-compatible storage on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully […]

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Установка Apache Tomcat 9 в Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

Установка Apache Tomcat 9 в Ubuntu 18.04

Apache Tomcat — это веб-сервер и контейнер сервлетов, используемый для обслуживания приложений Java. Tomcat представляет собой реализацию технологий Java Servlet и JavaServer Pages с открытым исходным кодом, разработанную Apache Software Foundation. В настоящем руководстве…

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How To Use Web APIs in Python 3 — step-by-step Python tutorial on Progressive Robot

How To Use Web APIs in Python 3

An API, or Application Program Interface, makes it easy for developers to integrate one app with another. They expose some of a program’s inner workings in a limited way. You can use APIs to get information from other programs, or to automate things you normally do in your…

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openSUSE Tumbleweed — libvpx7 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libvpx7 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2020:0680-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-0034 Upstream summary: In vp8_decode_frame of decodeframe.c, there is a possible out of bounds read due to improper input validation. This could lead to remote […]

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