August 2020 - Page 35 of 69

Common Problems 112396

Windows Server 2019 — IIS W3SVC service refuses to start after reboot — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 03 May 2027 Affected versions: Windows Server 2019 📖 ~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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Oracle Linux 8 — java-1.8.0-openjdk — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — java-1.8.0-openjdk — vulnerability — patch and remediation guide (ELSA-2020-0202)

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-0202 Related CVEs: CVE-2020-2601 CVE-2020-2659 CVE-2020-2604 CVE-2020-2590 CVE-2020-2593 CVE-2020-2583 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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How to Configure IPv6 Networking on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure IPv6 Networking on RHEL 7

How to Configure IPv6 Networking on RHEL 7 IPv6 is the successor to IPv4, offering a vastly larger address space (128-bit addresses versus 32-bit), improved routing efficiency, and built-in support for auto-configuration and security features like IPsec. As IPv4 address exhaustion becomes a practical reality for many networks, enabling and configuring IPv6 on RHEL 7 […]

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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-2019-4851)

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-4851 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 Ensure Cluster Reliability with ChaosMesh on Kubernetes — step-by-step Kubernetes tutorial on Progressive Robot

How to Ensure Cluster Reliability with ChaosMesh on Kubernetes

*The author selected Free and Open Source Fund to receive a donation as part of the Write for DOnations program.* Introduction By itself, Kubernetes strives to provide a resilient and scalable platform for hosting applications and workloads. When faults occur, it automatically tries to repair them to keep the cluster and its deployments in the […]

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Height of Binary Tree in C/C++ — step-by-step Programming tutorial on Progressive Robot

Height of Binary Tree in C/C++

The height of a Binary Tree is defined as the maximum depth of any leaf node from the root node. That is, it is the length of the longest path from the root node to any leaf node. Let us consider the below Binary Tree. Since the leaf nodes corresponding to the maximum depth are […]

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