2020 - Page 132 of 735

How to Secure PostgreSQL on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Secure PostgreSQL on Oracle Linux 8

Introduction How to Secure PostgreSQL on Oracle Linux 8 on Oracle Linux 8 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is reproducible […]

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How to Keep Ubuntu 20.04 Servers Updated — step-by-step Linux tutorial on Progressive Robot

How to Keep Ubuntu 20.04 Servers Updated

the cloud provider makes it possible for you to run as many droplets as you need for a project with one click. However, it’s more straightforward to deploy a server than it is to maintain one, and as you scale up your infrastructure, and droplets end up having longer project lifespans than you originally envisioned, you may find that you have some unanswered questions about maintenance. There are many steps you can take to ensure your servers will continue to work securely without future intervention.

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VMware ESXi 6.7 — ovf — multiple ESXi vulnerabilities (2 CVEs) — VIB / vLCM patch and remediation guide — diagnosis and fix on VMware ESXi 6.7

VMware ESXi 6.7 — ovf — multiple ESXi vulnerabilities (2 CVEs) — VIB / vLCM patch and remediation guide

🔴 Critical   ⏱ 30–120 min  Last verified: 25 May 2026 Affected versions: VMware ESXi 6.7 📖 ~4 min read  •  Source: VMware advisory VMSA-2020-0026 Related CVEs: CVE-2020-4004 CVE-2020-4005 Fixed image profile / build: ESXi670-202011301-SG Upstream summary: An issue in OVF descriptor parsing on ESXi (CVE-2020-4004 / CVE-2020-4005) lets a malicious actor with local access […]

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How To Install and Configure Varnish with Apache on Ubuntu 12.04 — step-by-step Linux tutorial on Progressive Robot

How To Install and Configure Varnish with Apache on Ubuntu 12.04

Varnish is an HTTP accelerator and a useful tool for speeding up a server, especially during a times when there is high traffic to a site. It works by redirecting visitors to static pages whenever possible and only drawing on the virtual private server itself if there is a need for an active process. This tutorial covers setting up Varnish with Apache on Ubuntu 12.04.

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Ubuntu 16.04 — whoopsie — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — whoopsie — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 26 October 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4450-1 Related CVEs: CVE-2020-11937 CVE-2020-12135 CVE-2020-15570 https://launchpad.net/bugs/1850608 CVE-2019-11484 CVE-2019-11476 Upstream summary: Seong-Joong Kim discovered that Whoopsie incorrectly handled memory. A local attacker could use this issue to cause Whoopsie to […]

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Oracle Linux 8 — openssl security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — openssl security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2019-3700)

🟢 Low   ⏱ 5–15 min  Last verified: 25 October 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-3700 Related CVEs: CVE-2018-0734 CVE-2018-0735 CVE-2019-1543 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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Common Problems 117397

Ubuntu 20.04 Stuck on Boot Splash After Updates

🟡 Medium   ⏱ 5–30 min  Last verified: 25 October 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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