August 2021 - Page 47 of 65

How To Install and Use TimescaleDB on Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

How To Install and Use TimescaleDB on Ubuntu 20.04

TimescaleDB is an open-source database optimized for storing time-series data. It is implemented as an extension of PostgreSQL and combines the ease-of-use of relational databases and the speed of NoSQL databases. By following this tutorial, you’ll set up TimescaleDB on Ubuntu 20.04, configure it, and learn how to work with it. You’ll run through creating time-series databases and making simple queries. Finally, you’ll see how to compress data and get rid of unnecessary data.

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Oracle Linux 8 — nodejs:14 — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — nodejs:14 — security and stability fixes — required update (ELSA-2021-3666)

🟠 High   ⏱ 15–60 min  Last verified: 9 August 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-3666 Related CVEs: CVE-2021-22939 CVE-2021-3672 CVE-2021-32804 CVE-2021-22940 CVE-2021-32803 CVE-2021-22930 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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AlmaLinux 8 — libxcb — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — libxcb — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2020:1633 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Common Problems 113399

Windows Server 2012 R2 – LSASS high CPU and authentication slowdowns – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 9 August 2021 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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How to Configure HAProxy Load Balancer on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure HAProxy Load Balancer on FreeBSD 13

Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up configure haproxy load balancer on freebsd 13 on FreeBSD 13 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux […]

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AlmaLinux 8 — hdparm — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — hdparm — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2021:4421 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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FreeBSD 13 — syncthing — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — syncthing — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 August 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: syncthing — crash due to malformed relay protocol message Related CVEs: CVE-2021-21404 Upstream summary: syncthing developers report: syncthing can be caused to crash and exit if sent a malformed relay […]

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