Linux

Common Problems 121060

Debian 10 – systemd Journal Consumes Disk Space – Retention and Vacuum Strategy

🟡 Medium   ⏱ 5–30 min  Last verified: 1 August 2020 Affected versions: Debian 10 📖 ~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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Common Problems 117528

Ubuntu 20.04 LTS – sudo reports unable to resolve host

🟡 Medium   ⏱ 5–30 min  Last verified: 1 August 2020 Affected versions: Ubuntu 20.04 LTS Ubuntu 20.04 Ubuntu 20.04.6 📖 ~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 114963

RHEL 8 NFS mount hangs during boot sequence

🟡 Medium   ⏱ 5–30 min  Last verified: 1 August 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 Configure GitLab CE on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure GitLab CE on Debian 10

Introduction This guide explains how to Configure GitLab CE on Debian 10 on Debian 10 Buster. Debian Buster uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 10 install with the standard […]

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Oracle Linux 8 — go-toolset:ol8 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — go-toolset:ol8 — vulnerability — patch and remediation guide (ELSA-2020-5493)

🟡 Medium   ⏱ 10–30 min  Last verified: 1 August 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-5493 Related CVEs: CVE-2020-28362 CVE-2020-24553 CVE-2020-28366 CVE-2020-28367 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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Oracle Linux 8 — GraalVM — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — GraalVM — vulnerability — patch and remediation guide (ELSA-2023-12672)

🟠 High   ⏱ 15–60 min  Last verified: 1 August 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-12672 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 […]

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How To Set Up a Local OSSEC Installation on Fedora 21 — step-by-step Linux tutorial on Progressive Robot

How To Set Up a Local OSSEC Installation on Fedora 21

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. It’s the application to install on your server if you want to keep an eye on what’s happening inside it. In this tutorial you’ll learn how to install OSSEC to monitor the Fedora 21 server it is installed on: a local OSSEC installation.

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How To Install the Lita Chat Bot for IRC on Ubuntu 14.04 — step-by-step Linux tutorial on Progressive Robot

How To Install the Lita Chat Bot for IRC on Ubuntu 14.04

Many modern DevOps teams are putting more and more infrastructure around the chatroom. One of the main motivations behind this chatroom infrastructure is because of chatroom bots, which DevOps teams use to help get their work done faster and more efficiently. In this tutorial, we’ll walk through the steps to install Lita on your own Ubuntu server, connect it to a IRC channel, and start installing plugins.

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