Linux

Oracle Linux 9 — GraalVM — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — GraalVM — vulnerability — patch and remediation guide (ELSA-2022-9953)

🟠 High   ⏱ 15–60 min  Last verified: 16 December 2022 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9953 Related CVEs: CVE-2022-32214 CVE-2022-32212 CVE-2022-21618 CVE-2022-2097 CVE-2022-35256 CVE-2022-39399 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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An Introduction to File Compression Tools on Linux Servers — step-by-step Linux tutorial on Progressive Robot

An Introduction to File Compression Tools on Linux Servers

There are many reasons why you would want to compress files on a server. Compression can save disk space and bandwidth and can simplify file transfers of entire directory structures when combined with archiving formats. In this guide, we’ll discuss the strengths and weaknesses of different compression tools, discuss which tool is right for different circumstances, and demonstrate how to use the commands.

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How to Set Up a Kubernetes Dashboard on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up a Kubernetes Dashboard on RHEL 7

How to Set Up a Kubernetes Dashboard on RHEL 7 The Kubernetes Dashboard is a web-based UI that provides a graphical interface for managing cluster resources, viewing workload status, inspecting pod logs, executing commands inside containers, and monitoring resource utilisation. While kubectl provides full cluster control from the command line, the Dashboard is invaluable for […]

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Common Problems 119049

Ubuntu 14.04 LTS – ca-certificates package outdated breaks TLS trust

🟠 High   ⏱ 5–30 min  Last verified: 15 December 2022 Affected versions: Ubuntu 14.04 LTS Ubuntu 14.04 Ubuntu 14.04.6 📖 ~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 […]

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Common Problems 116920

Ubuntu 22.04 LTS UFW Enabled But Ports Still Unreachable

🟡 Medium   ⏱ 5–30 min  Last verified: 15 December 2022 📖 ~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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Debian 11 — rust-generator — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — rust-generator — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-36471 Upstream summary: An issue was discovered in the generator crate before 0.7.0 for Rust. It does not ensure that a function (for yielding values) has Send bounds. […]

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AlmaLinux 8 — dhcp — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — dhcp — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2023:3000 Related CVEs: CVE-2022-2928 CVE-2022-2929 Upstream summary: The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows individual devices on an IP network to get their own network configuration information, including […]

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Debian 11 — inotify-tools — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — inotify-tools — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-5037 Upstream summary: Buffer overflow in the inotifytools_snprintf function in src/inotifytools.c in the inotify-tools library before 3.11 allows context-dependent attackers to execute arbitrary code via a long filename. […]

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Debian 11 — libmtp — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libmtp — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-9831 CVE-2017-9832 Upstream summary: An integer overflow vulnerability in the ptp_unpack_EOS_CustomFuncEx function of the ptp-pack.c file of libmtp (version 1.1.12 and below) allows attackers to cause a denial […]

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How To Set Up a Hexxit (Minecraft Mod Pack) Server on Ubuntu 14.04 — step-by-step Linux tutorial on Progressive Robot

How To Set Up a Hexxit (Minecraft Mod Pack) Server on Ubuntu 14.04

[Hexxit](http://www.technicpack.net/modpack/hexxit.552552) is a Minecraft modpack, i.e. a collection of Minecraft mods. While the original game has its roots in freeform exploration and building, Hexxit puts an emphasis on adventure and battle. The 54 mods included with Hexxit add a large variety of new monsters to fight (including bosses), structures to explore, and lots of rare and useful loot!

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