Linux

Ubuntu 16.04 — ansible — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — ansible — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • June 2, 2020
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 2 June 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7330-2 Related CVEs: https://launchpad.net/bugs/2104925 CVE-2015-3908 CVE-2015-6240 CVE-2016-8614 CVE-2019-10206 CVE-2019-14846 CVE-2019-14904 CVE-2020-10729  +12 more Upstream summary: USN-7330-1 fixed vulnerabilities in Ansible. The update introduced a regression when attempting to install Ansible […]

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Arch Linux — calibre — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — calibre — vulnerability — patch and remediation guide

  • June 2, 2020
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201803-8 Related CVEs: CVE-2018-7889 Upstream summary: Type: arbitrary command execution. Status: Fixed. Affected: 3.18.0-1. Fixed in: 3.19.0-1. Group: AVG-650. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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How to Install and Configure MinIO Object Storage on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install and Configure MinIO Object Storage on RHEL 7

  • June 2, 2020
  • Linux
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How to Install and Configure MinIO Object Storage on RHEL 7 MinIO is a high-performance, S3-compatible object storage server written in Go. It can run as a single-node server or in distributed mode across multiple nodes, making it suitable for everything from development environments to production-grade data lakes. Because MinIO ships as a single static […]

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Common Problems 118095

Ubuntu 18.04 LTS – swap usage stays high after memory pressure event

  • June 1, 2020
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 1 June 2020 Affected versions: Ubuntu 18.04 LTS Ubuntu 18.04 Ubuntu 18.04.6 📖 ~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 117412

Ubuntu 20.04 LTS – dpkg interrupted state blocks package operations – Fix & Prevention

  • June 1, 2020
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 1 June 2020 Affected versions: Ubuntu 20.04 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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Common Problems 115011

RHEL 8 tuned Profile Misconfiguration Causing Latency Spikes

  • June 1, 2020
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 1 June 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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Debian 10 — ldm — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — ldm — vulnerability — patch and remediation guide

  • June 1, 2020
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 1 June 2020 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-20373 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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Ubuntu 18.04 — velocity-tools — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — velocity-tools — vulnerability — patch and remediation guide

  • June 1, 2020
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 1 June 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6282-1 Related CVEs: CVE-2020-13959 Upstream summary: Jackson Henry discovered that Velocity Tools incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted […]

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

Oracle Linux 8 — dovecot — vulnerability — patch and remediation guide (ELSA-2020-3713)

  • June 1, 2020
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 1 June 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-3713 Related CVEs: CVE-2020-12674 CVE-2020-12100 CVE-2020-12673 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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How To Manage Your Cluster with Chef and Knife on Ubuntu — step-by-step Linux tutorial on Progressive Robot

How To Manage Your Cluster with Chef and Knife on Ubuntu

  • June 1, 2020
  • Linux
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`knife` is a command line tool packaged with Chef. You’ve likely already used knife to create and manage Chef cookbooks, data bags, or roles. This guide will introduce you to some new knife subcommands for issuing commands and getting information about your Chef cluster.

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