Linux

Oracle Linux 8 — virt:ol — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — virt:ol — vulnerability — patch and remediation guide (ELSA-2020-0279)

🟡 Medium   ⏱ 10–30 min  Last verified: 8 December 2019 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-0279 Related CVEs: CVE-2019-11135 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How to Install Redis on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install Redis on RHEL 8

Redis is an in-memory data structure store used as a database, cache, and message broker, capable of delivering sub-millisecond response times for millions of operations per second. On RHEL 8, Redis is available through the AppStream module system, giving you a straightforward installation path without third-party repositories. This guide covers installing Redis 6 via AppStream […]

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Common Problems 118440

Ubuntu 16.04 NVIDIA driver installation fails

🟡 Medium   ⏱ 5–30 min  Last verified: 7 December 2019 📖 ~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 Set Up CouchDB on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up CouchDB on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up set up couchdb 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 and the […]

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SLES 15 — csync2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — csync2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 7 December 2019 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:14763-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-15522 CVE-2019-15523 Upstream summary: An issue was discovered in LINBIT csync2 through 2.0. csync_daemon_session in daemon.c neglects to force a failure of a hello command […]

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SLES 15 — libotr5 — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libotr5 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 7 December 2019 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2016:0706-1 (see also SUSE bugzilla) Related CVEs: CVE-2016-2851 Upstream summary: Integer overflow in proto.c in libotr before 4.1.1 on 64-bit platforms allows remote attackers to cause a denial of service (memory corruption […]

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How To Install and Use Webmin on CentOS 7 — step-by-step Linux tutorial on Progressive Robot

How To Install and Use Webmin on CentOS 7

[Webmin](http://www.webmin.com/) is a modern, web control panel for any Linux machine. It allows you to administer your server through an simple interface. In this tutorial, you’ll install and configure Webmin on your server and secure access to the interface with a valid certificate from Let’s Encrypt.

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How To Install and Configure OSSEC on FreeBSD 10.1 — step-by-step Linux tutorial on Progressive Robot

How To Install and Configure OSSEC on FreeBSD 10.1

OSSEC is an open source, host-based intrusion detection system (HIDS) that performs log analysis, integrity checking, Windows registry monitoring, rootkit detection, time-based alerting, and active response. This tutorial will show you how to install and configure OSSEC to monitor a cloud servers running FreeBSD 10.1.

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Gentoo Linux — dev-python/Levenshtein — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — dev-python/Levenshtein — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202408-04 Upstream summary: Fixed handling of numerous possible wraparounds in calculating the size of memory allocations; incorrect handling of which could cause denial of service or even possible remote code execution. Table […]

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