June 2021 - Page 22 of 66

Ubuntu 18.04 — ipmitool — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — ipmitool — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5997-1 Related CVEs: CVE-2020-5208 Upstream summary: It was discovered that IPMItool was not properly checking the data received from a remote LAN party. A remote attacker could possibly use this […]

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How to Configure Active Directory Sites and Services on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Active Directory Sites and Services on Windows Server 2019

Introduction to Active Directory Sites and Services Active Directory Sites and Services is a Microsoft Management Console (MMC) snap-in that administrators use to manage the replication topology of Active Directory Domain Services (AD DS). Sites define the physical or logical grouping of well-connected IP subnets. By configuring sites correctly, you control how AD DS replication […]

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Ubuntu 16.04 — mailman — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — mailman — multiple vulnerabilities (15 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8067-1 Related CVEs: CVE-2021-44227 CVE-2021-43331 CVE-2021-43332 https://launchpad.net/bugs/1949401 https://launchpad.net/mailman/+bug/1949403 CVE-2021-42096 CVE-2021-42097 CVE-2020-15011  +7 more Upstream summary: It was discovered that Mailman incorrectly handled CSRF tokens. A remote list member or moderator […]

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

Oracle Linux 8 — binutils — vulnerability — patch and remediation guide (ELSA-2021-4595)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4595 Related CVEs: CVE-2021-42574 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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A Comparison of (Rack) Web Servers for Ruby Web Applications — step-by-step Programming tutorial on Progressive Robot

A Comparison of (Rack) Web Servers for Ruby Web Applications

In this the cloud provider article, we are going to compare various popular web servers that power Ruby based web applications. However before diving in, we will provide an introduction to the mechanics behind how the process mentioned above works as we get familiar with the Rack and middleware collection.

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

Oracle Linux 8 — grilo — vulnerability — patch and remediation guide (ELSA-2021-4339)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4339 Related CVEs: CVE-2021-39365 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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Oracle Linux 8 — glibc — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — glibc — vulnerability — patch and remediation guide (ELSA-2021-9344)

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-9344 Related CVEs: CVE-2019-25013 CVE-2020-27618 CVE-2019-9169 CVE-2016-10228 CVE-2021-3326 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

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How to Set Up a Complete DevSecOps Pipeline on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Set Up a Complete DevSecOps Pipeline on RHEL 8

DevSecOps integrates security into every stage of the software delivery lifecycle rather than treating it as a final gate before release. On RHEL 8 you can assemble a complete DevSecOps pipeline from open-source components, all running on your own infrastructure: a Git server for source control, a CI/CD engine for automation, static analysis and container […]

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